Foliar fertilizer based on plant SOD cultivation and preparation method and application thereof

Abstract

The invention relates to the technical field of foliar fertilizers, and discloses a foliar fertilizer based on plant SOD cultivation and a preparation method and application thereof.The foliar fertilizer is prepared from, by mass, 8-20% of natural mineral powder, 8-12% of seaweed extract, 2-6% of traditional Chinese medicine extract, 10-16% of plant extract, 1-3% of rooting agent, 1-3% of anti-continuous cropping agent, 1-3% of anti-blocking agent and the balance carbamide; the leaf fertilizer provided by the invention can improve enzyme activity units in different crops by 3-100 times or more, and can improve the quality and increase the yield of the crops by 5-8%. The SOD supplemented in the growth period of crops can enter cells in the fruits, can be stored in the plant fruits as a storage, can be conveniently absorbed by a human body, and greatly improves the content of SOD (superoxide dismutase) in the crop fruits and vegetables.

Description

Technical Field

[0001] The present invention relates to the technical field of foliar fertilizers, and more particularly to a foliar fertilizer based on plant SOD cultivation, and a preparation method and application thereof. Background Art

[0002] Foliar fertilization is a supplement for plants to absorb nutrients to make up for the lack of nutrients absorbed by the roots. The principle of foliar fertilizer is to first clarify the leaf structure.

[0003] However, the existing foliar fertilizers have relatively simple functions and unbalanced nutritional elements, and cannot replace soil fertilization. Crops cannot obtain the required nutrients during the growth process, which affects the growth efficiency of crops. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a foliar fertilizer based on plant SOD cultivation, and a preparation method and application thereof.

[0005] The present invention provides a foliar fertilizer based on plant SOD cultivation, comprising the following raw materials in percentage by mass:

[0006] Natural mineral powder 8-20%, seaweed extract 8-12%, Chinese medicinal material extract 2-6%, plant extract 10-16%, rooting agent 1-3%, anti-cropping agent 1-3%, anti-caking agent 1-3%, and carbonamide to make up the balance.

[0007] Preferably, the natural mineral powder is composed of medical stone: calcite: golden stone: zeolite in a weight ratio of 2-5:2-5:2-5:2-5:2-5.

[0008] Preferably, the plant extract consists of soybean lecithin extract: gypenoside extract in a weight ratio of 5-8:5-8.

[0009] Preferably, the Chinese medicinal materials are composed of Chaga: Ginseng: Leech in a weight ratio of 2-6: 2-6: 2-6.

[0010] Preferably: the rooting agent is indoleacetic acid.

[0011] Preferably, the anti-repeat agent is calcium cyanamide.

[0012] Preferably, the anti-caking agent is composed of sodium chloride: calcium carbonate: copper sulfate in a weight ratio of 1-3:1-3:1-3.

[0013] Preferably, the seaweed extract is prepared by breaking the seaweed wall, sieving it with a 100-mesh sieve, adding 5 to 8 times the amount of deionized water according to a ratio, soaking and stirring at a constant temperature of 40 to 45° C. for 5 to 8 hours, and then filtering and freeze-drying the filtrate to obtain the seaweed extract;

[0014] Preferably, the gypenosin extract is prepared by breaking the wall of Gynostemma pentaphyllum, sieving it with a 100-mesh sieve, adding 5 to 8 times the amount of deionized water according to the ratio, soaking and stirring at a constant temperature of 40 to 45° C. for 5 to 8 hours, and then filtering and freeze-drying the filtrate to obtain the gypenosin extract;

[0015] Preferably, the soybean lecithin extract is prepared by breaking the soybean wall, sieving with 100 mesh, adding 5 to 8 times the amount of deionized water according to the ratio, soaking and stirring at a constant temperature of 40 to 45°C for 5 to 8 hours, and then filtering and freeze-drying the filtrate to obtain the soybean lecithin extract;

[0016] Preferably, the Chinese herbal medicine extract is prepared by crushing the Chinese herbal medicines consisting of Chaga, ginseng and leech to a size of 60 mesh or more, adding 8 to 10 times the amount of deionized water according to the ratio, stirring in a reactor at a constant temperature of 85 to 90° C. for 20 to 24 hours, filtering the obtained filtrate and freeze-drying the obtained Chinese herbal medicine extract.

[0017] The purpose of the above filtration is to remove substrate impurities.

[0018] A method for preparing foliar fertilizer based on plant SOD cultivation comprises the following steps:

[0019] Step 101: crushing;

[0020] Mix carbonamide with natural mineral powder (composed of medical stone, calcite, golden stone, zeolite) and crush them (pass 100 mesh) to obtain powder fertilizer;

[0021] Note: If the first crushing fails to meet the standard, continue with the subsequent secondary crushing, etc., until it passes 100 mesh;

[0022] Step 102: Mixing;

[0023] Powdered fertilizer, seaweed extract, plant extract, Chinese herbal medicine extract, rooting agent, anti-repeat agent and anti-caking agent and SOD enzyme powder are mixed and then ground (to over 100 meshes) to obtain foliar fertilizer based on plant SOD cultivation.

[0024] Preferably, in step 102, the powdered fertilizer, seaweed extract, plant extract, SOD enzyme powder, Chinese herbal medicine extract and rooting agent are first mixed and then ground for 5 to 10 minutes, then the anti-repeat agent is added and ground for 5 to 10 minutes, and finally the anti-caking agent is added and ground until it passes through a 100-mesh sieve (grinding time is about 15 to 20 minutes).

[0025] An application of foliar fertilizer based on plant SOD cultivation, applied to sexually propagated crops and asexually propagated fruit trees;

[0026] The method, which is applied to sexually propagated crops (soybeans, wheat, vegetables, etc.), comprises the following steps:

[0027] Step 201: first, heat natural water 2.5 to 3 times the total weight of the seeds to 40° C. to 45° C., and then soak or pour over the seeds for 2 to 5 minutes to activate the seeds;

[0028] Drain the activated seeds (until they no longer drip water) and add foliar fertilizer and stir evenly so that the foliar fertilizer is evenly attached to the surface of the seeds. Then dry them for 20 to 30 minutes before sowing.

[0029] Use 10-40 grams of foliar fertilizer for every 500 grams of seeds;

[0030] Step 202: When the crops have grown into seedlings and need to be transplanted, 200 to 250 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution liquid I, and the foliar fertilizer dilution liquid I is used to evenly atomize and spray the leaves; the amount of the foliar fertilizer dilution liquid I used is about 40 kg;

[0031] Step 203: During the growth period after transplanting, 400 to 500 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution solution II; the foliar fertilizer dilution solution II is used for root irrigation and foliar atomization spraying once every 7 to 10 days; the amount of the foliar fertilizer dilution solution II used each time is about 100 kg; about 55% of the foliar fertilizer dilution solution II is used for root irrigation, and the rest is used for foliar atomization spraying.

[0032] For crops and vegetables with a growth cycle of less than 60 days, spray 3-5 times per growing season. Each time, use a foliar fertilizer II solution, with a dilution rate of 50-60 kg of water per mu (approximately 1.5 acres). The specific amount depends on the weather and temperature. On sunny days, use a higher ratio. On cloudy days, use a lower ratio. For plants with a short growth cycle, it is recommended to irrigate the seedlings 5-10 cm apart after transplanting. For plants with a short growth cycle, irrigate the roots simultaneously with each application of liquid fertilizer.

[0033] The method applied to asexually propagated fruit trees (such as kiwi, prickly pear, and grapes) comprises the following steps:

[0034] Step 301: adding 200 to 250 times by weight of natural water to the foliar fertilizer to dilute it, to obtain a foliar fertilizer dilution solution 1. When transplanting young saplings, soak the roots of the saplings in the foliar fertilizer dilution solution 1 for 10 to 15 minutes, let it dry for 20 to 30 minutes, and then plant them.

[0035] Within 1 to 3 days after planting the seedlings, add 400 to 500 times the mass of natural water to the foliar fertilizer to dilute it to obtain a second foliar fertilizer dilution solution; use the second foliar fertilizer dilution solution for root irrigation and foliar atomization spraying; the amount of the second foliar fertilizer dilution solution used is about 100 to 120 kilograms; about 60% of the second foliar fertilizer dilution solution is used for root irrigation, and the rest is used for foliar atomization spraying;

[0036] Step 302: During the growth process, 700 to 750 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution solution 3; then, the foliar fertilizer dilution solution 3 is evenly atomized and sprayed on the leaves once every 7 to 10 days; the amount of the foliar fertilizer dilution solution 3 used each time is about 50 to 60 kilograms.

[0037] For crops and fruits and vegetables with a growth cycle of more than 100 days, spray 6 to 8 times per growing season. Each time, use a foliar fertilizer III dilution ratio of 50 to 60 kg of water per mu (approximately 1.5 to 2.5 acres). The specific dosage depends on the weather and temperature. On sunny days, use a higher dosage ratio. On cloudy days, use a lower dosage ratio. Within 1 to 3 days after transplanting seedlings, irrigate approximately 25 cm from the base of the seedlings. For mature fruit-bearing trees, irrigate by digging a trench approximately 50 cm from the base of the tree.

[0038] The beneficial effects of this invention are as follows: the foliar fertilizer proposed in this invention can increase enzyme activity units in various crops by 3 to 100 times or more, improving crop quality and increasing yield by 5% to 8%. The SOD supplemented during the crop growth period can enter the fruit cells and be stored in the fruit for easy absorption by the human body, significantly increasing the SOD (superoxide dismutase) content in crop fruits and vegetables.

[0039] By adding seaweed extract, soybean lecithin extract, gypenosin extract, and Chinese herbal medicine extracts, this invention significantly increases plant nutrients and superoxide dismutase (SOD) activity. Furthermore, the plant SOD enzyme powder added to the foliar fertilizer maintains its activity even after two years of storage.

[0040] The present invention solves the problem that existing foliar fertilizers have relatively single functions, unbalanced nutrient elements, cannot replace soil fertilization, and crops cannot obtain required nutrients during growth, which affects crop growth efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is the nutrient release curve of the foliar fertilizer under different pH conditions in the present invention. DETAILED DESCRIPTION

[0042] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described in some examples may be combined in other examples.

[0043] Example 1

[0044] In this embodiment, a foliar fertilizer based on plant SOD cultivation is proposed, which includes the following raw materials in the following mass percentages:

[0045] Natural mineral powder 8%, seaweed extract 8%, Chinese herbal medicine extract 2%, plant extract 16%, rooting agent 3%, anti-cropping agent 3%, anti-caking agent 3%, and carbonamide to make up the balance.

[0046] in:

[0047] The natural mineral powder is composed of medical stone: calcite: golden stone: zeolite in a weight ratio of 2:2:2:2.

[0048] The plant extract consists of soybean lecithin extract: gypenoside extract in a weight ratio of 5:5.

[0049] The Chinese medicinal material is composed of Chaga: Ginseng: Leech = 2:2:2 in weight ratio.

[0050] The rooting agent is indoleacetic acid.

[0051] The anti-replanting agent is calcium cyanamide.

[0052] The anti-caking agent is composed of sodium chloride: calcium carbonate: copper sulfate = 1:1:1 by weight.

[0053] The seaweed extract is prepared by breaking the seaweed wall, sieving it with a 100-mesh sieve, adding it to 5 times the amount of deionized water according to a ratio, soaking and stirring it at a constant temperature of 40°C for 5 hours, and then filtering it. The filtrate is freeze-dried to obtain the seaweed extract;

[0054] The gypenosin extract is prepared by breaking the wall of Gynostemma pentaphyllum, sieving it with a 100-mesh sieve, adding 5 times the amount of deionized water according to a ratio, soaking and stirring at a constant temperature of 40°C for 5 hours, and then filtering and freeze-drying the filtrate to obtain the gypenosin extract.

[0055] Soybean lecithin extract is prepared by breaking the soybean wall, sieving with 100 mesh, adding 5 times the amount of deionized water according to the ratio, soaking and stirring at a constant temperature of 40°C for 5 hours, and then filtering and freeze-drying the filtrate to obtain the soybean lecithin extract;

[0056] The Chinese herbal medicine extract is prepared by grinding Chinese herbal medicines consisting of Chaga, ginseng and leech to a size of more than 60 mesh, adding 8 times the amount of deionized water according to a ratio, stirring in a reactor at a constant temperature of 85°C for 20 hours, filtering the obtained filtrate and freeze-drying it to obtain the Chinese herbal medicine extract.

[0057] The purpose of the above filtration is to remove substrate impurities.

[0058] Example 2

[0059] In this embodiment, a foliar fertilizer based on plant SOD cultivation is proposed, which includes the following raw materials in the following mass percentages:

[0060] Natural mineral powder 20%, seaweed extract 12%, Chinese herbal medicine extract 6%, plant extract 10%, rooting agent 1%, anti-cropping agent 1%, anti-caking agent 1%, and carbonamide to make up the balance.

[0061] in:

[0062] The natural mineral powder is composed of medical stone: calcite: golden stone: zeolite in a weight ratio of 5:5:5:5.

[0063] The plant extract consists of soybean lecithin extract and gypenosin extract in a weight ratio of 8:8.

[0064] The Chinese medicinal material is composed of Chaga: Ginseng: Leech = 6:6:6 in weight ratio.

[0065] The rooting agent is indoleacetic acid.

[0066] The anti-replanting agent is calcium cyanamide.

[0067] The anti-caking agent is composed of sodium chloride: calcium carbonate: copper sulfate = 3:3:3 by weight.

[0068] The seaweed extract is prepared by breaking the seaweed wall, sieving it with a 100-mesh sieve, adding it to 8 times the amount of deionized water according to a ratio, soaking and stirring it at a constant temperature of 45°C for 8 hours, and then filtering it. The filtrate is freeze-dried to obtain the seaweed extract;

[0069] The gypenosin extract is prepared by breaking the wall of Gynostemma pentaphyllum, sieving it with a 100-mesh sieve, adding 8 times the amount of deionized water according to a ratio, soaking and stirring at a constant temperature of 45°C for 8 hours, and then filtering and freeze-drying the filtrate to obtain the gypenosin extract.

[0070] Soybean lecithin extract is prepared by breaking the soybean wall, sieving with 100 mesh, adding 8 times the amount of deionized water according to the ratio, soaking and stirring at a constant temperature of 45°C for 8 hours, and then filtering and freeze-drying the filtrate to obtain the soybean lecithin extract;

[0071] The Chinese herbal medicine extract is prepared by crushing the Chinese herbal medicine consisting of Chaga, ginseng and leech to a size of more than 60 mesh, adding 10 times the amount of deionized water according to a ratio, stirring in a reactor at a constant temperature of 90°C for 24 hours, filtering the obtained filtrate and freeze-drying it to obtain the Chinese herbal medicine extract.

[0072] The purpose of the above filtration is to remove substrate impurities.

[0073] Example 3

[0074] In this embodiment, a foliar fertilizer based on plant SOD cultivation is proposed, which includes the following raw materials in the following mass percentages:

[0075] Natural mineral powder 14%, seaweed extract 10%, Chinese herbal medicine extract 4%, plant extract 13%, rooting agent 2%, anti-cropping agent 2%, anti-caking agent 2%, and carbonamide to make up the balance.

[0076] in:

[0077] The natural mineral powder is composed of medical stone: calcite: golden stone: zeolite in a weight ratio of 3:3:3:3.

[0078] The plant extract consists of soybean lecithin extract: gypenoside extract in a weight ratio of 6.5:6.5.

[0079] The Chinese medicinal material is composed of Chaga: Ginseng: Leech = 4:4:4 in weight ratio.

[0080] The rooting agent is indoleacetic acid.

[0081] The anti-replanting agent is calcium cyanamide.

[0082] The anti-caking agent is composed of sodium chloride: calcium carbonate: copper sulfate in a weight ratio of 2:2:2.

[0083] The seaweed extract is prepared by breaking the seaweed wall, sieving it with a 100-mesh sieve, adding it to 6 times the amount of deionized water according to a ratio, soaking and stirring it at a constant temperature of 43°C for 7 hours, and then filtering it. The filtrate is freeze-dried to obtain the seaweed extract;

[0084] The gypenosin extract is prepared by breaking the wall of Gynostemma pentaphyllum, sieving it with a 100-mesh sieve, adding 6 times the amount of deionized water according to a ratio, soaking and stirring at a constant temperature of 43°C for 6 hours, and then filtering and freeze-drying the filtrate to obtain the gypenosin extract.

[0085] Soybean lecithin extract is prepared by breaking the soybean wall, sieving with 100 mesh, adding 7 times of deionized water according to the ratio, soaking and stirring at a constant temperature of 42°C for 7 hours, and then filtering and freeze-drying the filtrate to obtain soybean lecithin extract;

[0086] The Chinese herbal medicine extract is prepared by grinding Chinese herbal medicines consisting of Chaga, ginseng and leech to a size of more than 60 mesh, adding 9 times the amount of deionized water according to a ratio, stirring in a reactor at a constant temperature of 88°C for 22 hours, filtering the obtained filtrate and freeze-drying it to obtain the Chinese herbal medicine extract.

[0087] The purpose of the above filtration is to remove substrate impurities.

[0088] Example 4

[0089] In this embodiment, a method for preparing a foliar fertilizer based on plant SOD cultivation is proposed, comprising the following steps:

[0090] Step 101: crushing;

[0091] Mix carbonamide with natural mineral powder (composed of medical stone, calcite, golden stone, zeolite) and crush them (pass 100 mesh) to obtain powder fertilizer;

[0092] Note: If the first crushing fails to meet the standard, continue with the subsequent secondary crushing, etc., until it passes 100 mesh;

[0093] Step 102: Mixing;

[0094] Powdered fertilizer, seaweed extract, plant extract, Chinese herbal medicine extract, rooting agent, anti-repeat agent and anti-caking agent and SOD enzyme powder are mixed and then ground (to over 100 meshes) to obtain foliar fertilizer based on plant SOD cultivation.

[0095] In step 102, powdered fertilizer, seaweed extract, plant extract, SOD enzyme powder, Chinese herbal medicine extract and rooting agent are first mixed and ground for 5 to 10 minutes, then an anti-repeat agent is added and ground for 5 to 10 minutes, and finally an anti-caking agent is added and ground until the mixture passes through a 100-mesh sieve (grinding time is about 15 to 20 minutes).

[0096] Example 5

[0097] In this embodiment, an application of a foliar fertilizer based on plant SOD cultivation is proposed, which is applied to sexually propagated crops and asexually propagated fruit trees.

[0098] in:

[0099] The method, which is applied to sexually propagated crops (soybeans, wheat, vegetables, etc.), comprises the following steps:

[0100] Step 201: first, heat natural water 2.5 to 3 times the total weight of the seeds to 40° C. to 45° C., and then soak or pour over the seeds for 2 to 5 minutes to activate the seeds;

[0101] Drain the activated seeds (until they no longer drip water) and add foliar fertilizer and stir evenly so that the foliar fertilizer is evenly attached to the surface of the seeds. Then dry them for 20 to 30 minutes before sowing.

[0102] Use 10-40 grams of foliar fertilizer for every 500 grams of seeds;

[0103] Step 202: When the crops have grown into seedlings and need to be transplanted, 200 to 250 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution liquid I, and the foliar fertilizer dilution liquid I is used to evenly atomize and spray the leaves; the amount of the foliar fertilizer dilution liquid I used is about 40 kg;

[0104] Step 203: During the growth period after transplanting, 400 to 500 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution solution II; the foliar fertilizer dilution solution II is used for root irrigation and foliar atomization spraying once every 7 to 10 days; the amount of the foliar fertilizer dilution solution II used each time is about 100 kg; about 55% of the foliar fertilizer dilution solution II is used for root irrigation, and the rest is used for foliar atomization spraying.

[0105] For crops and vegetables with a growth cycle of less than 60 days, spray 3-5 times per growing season. Each time, use a foliar fertilizer II solution, with a dilution rate of 50-60 kg of water per mu (approximately 1.5 acres). The specific amount depends on the weather and temperature. On sunny days, use a higher ratio. On cloudy days, use a lower ratio. For plants with a short growth cycle, it is recommended to irrigate the seedlings 5-10 cm apart after transplanting. For plants with a short growth cycle, irrigate the roots simultaneously with each application of liquid fertilizer.

[0106] The method applied to asexually propagated fruit trees (such as kiwi, prickly pear, and grapes) comprises the following steps:

[0107] Step 301: adding 200 to 250 times by weight of natural water to the foliar fertilizer to dilute it, to obtain a foliar fertilizer dilution solution 1. When transplanting young saplings, soak the roots of the saplings in the foliar fertilizer dilution solution 1 for 10 to 15 minutes, let it dry for 20 to 30 minutes, and then plant them.

[0108] Within 1 to 3 days after planting the seedlings, add 400 to 500 times the mass of natural water to the foliar fertilizer to dilute it to obtain a second foliar fertilizer dilution solution; use the second foliar fertilizer dilution solution for root irrigation and foliar atomization spraying; the amount of the second foliar fertilizer dilution solution used is about 100 to 120 kilograms; about 60% of the second foliar fertilizer dilution solution is used for root irrigation, and the rest is used for foliar atomization spraying;

[0109] Step 302: During the growth process, 700 to 750 times the mass of natural water is added to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution solution 3; then, the foliar fertilizer dilution solution 3 is evenly atomized and sprayed on the leaves once every 7 to 10 days; the amount of the foliar fertilizer dilution solution 3 used each time is about 50 to 60 kilograms.

[0110] For crops and fruits and vegetables with a growth cycle of more than 100 days, spray 6 to 8 times per growing season. Each time, use a foliar fertilizer III dilution ratio of 50 to 60 kg of water per mu (approximately 1.5 to 2.5 acres). The specific dosage depends on the weather and temperature. On sunny days, use a higher dosage ratio. On cloudy days, use a lower dosage ratio. Within 1 to 3 days after transplanting seedlings, irrigate approximately 25 cm from the base of the seedlings. For mature fruit-bearing trees, irrigate by digging a trench approximately 50 cm from the base of the tree.

[0111] Example 6

[0112] This example adopts the preparation method of Example 4 to prepare groups of foliar fertilizers for comparative testing experiments:

[0113] Example 6-1, Example 6-2, and Example 6-3 are the same as Example 1 except that the component contents thereof are changed as described in the following table.

[0114]

[0115] Comparative Example 1-1: The use of Chinese medicinal material extracts was eliminated, and the amount of carbonamide was increased accordingly so that the total amount remained 100 parts; the rest was the same as Example 6.

[0116] Comparative Example 1-2: The use of seaweed extract was eliminated, and the amount of carbonamide was increased accordingly so that the total amount remained 100 parts; the rest was the same as Example 6.

[0117] Comparative Examples 1-3: The amount of carbonamide used was increased accordingly so that the total amount remained at 100 parts; the rest was the same as in Example 1.

[0118] Actual Usage Example 1: A method for using foliar fertilizer for apples (Qixia production area) using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0119] S1.1: Dilute the foliar fertilizer by adding 200-250 times its weight of natural water to obtain a foliar fertilizer dilution solution. When transplanting young trees, soak the roots of the trees in the foliar fertilizer dilution solution for 10-15 minutes. Allow the solution to dry for 20-30 minutes before planting.

[0120] Within 1 to 3 days after planting the seedlings, add 400 to 500 times the mass of natural water to the foliar fertilizer to dilute it to obtain the foliar fertilizer dilution solution 2; use the foliar fertilizer dilution solution 2 for root irrigation; the amount of the foliar fertilizer dilution solution 2 is about 60 to 80 kilograms per mu; and irrigate the roots.

[0121] S1.2: Every year during the growing process (between mid-May and mid-September), add 700-750 times the mass of natural water to dilute the foliar fertilizer to obtain foliar fertilizer diluent three; then use foliar fertilizer diluent three to evenly spray the leaves once every 15 days or so; the amount of foliar fertilizer diluent three used each time is 50-60 kg per mu.

[0122] Therefore, during this growth process, the number of atomization sprayings of foliar fertilizer diluted liquid 3 is 6 to 8 times.

[0123] S1.3 For Red Fuji apples in the Qixia production area, for example: Apply base fertilizer to the soil at least one month in advance before planting. Apply 25-50 kg of organic fertilizer per tree in the planned planting area, along with 1-1.5 kg of superphosphate and 0.25-0.5 kg of potassium sulfate. Double the fertilizer rate for mature trees after the second year. Topdressing can be applied during the flower bud differentiation and fruit expansion phases.

[0124] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 6-1 and the seaweed extract in 6-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0125] Actual Use Example 1-1 was changed to use the foliar fertilizer obtained in Example 6-1, and the rest was the same as Actual Use Example 1.

[0126] Actual Use Example 1-2 was changed to use the foliar fertilizer obtained in Example 6-2, and the rest was the same as Actual Use Example 1.

[0127] Mature apples picked on the same day in the experimental plot were sampled according to routine procedures to test the enzyme content in the pulp (5 samples were taken for each sample, and the average value was then taken for comparison). The results are shown in the following table:

[0128]

[0129] The role of superoxide dismutase is: anti-oxidation and anti-aging

[0130] The function of catalase is to decompose hydrogen peroxide and participate in the regulation of redox balance in cells

[0131] The role of peroxidase is to catalyze substrate oxidation, participate in active oxygen metabolism, and participate in immune defense.

[0132] The function of glutathione peroxidase is to remove hydrogen peroxide and lipid peroxides, maintain intracellular redox balance, and participate in immune regulation.

[0133] Practical Use Example 2: A method for using foliar fertilizer for roxburghii (Xifeng, Guiyang) using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0134] S2.1: Dilute the foliar fertilizer by adding 200-250 times its weight of natural water to obtain a foliar fertilizer dilution solution 1. When transplanting young saplings, soak the roots of the saplings in the foliar fertilizer dilution solution 1 for 10-15 minutes. Allow to dry for 20-30 minutes before planting.

[0135] Within 1 to 3 days after planting the seedlings, add 400 to 500 times the mass of natural water to the foliar fertilizer to dilute it to obtain the foliar fertilizer dilution solution 2; use the foliar fertilizer dilution solution 2 for root irrigation; the amount of the foliar fertilizer dilution solution 2 is about 60 to 80 kilograms per mu; and irrigate the roots.

[0136] S2.2: During the growth process (between mid-March and early August), add 700-750 times the mass of natural water to the foliar fertilizer to dilute it to obtain foliar fertilizer diluent three; then use foliar fertilizer diluent three to evenly spray the leaves once every 15 days or so; the amount of foliar fertilizer diluent three used each time is 50-60 kg per mu.

[0137] Therefore, during this growth process, the number of atomization sprayings of foliar fertilizer diluted liquid 3 is 6 to 8 times.

[0138] S2.3: For example, at the Xifeng prickly pear base in Guizhou, apply well-rotted organic fertilizer or compound fertilizer to the soil at least one month before transplanting prickly pear trees. Apply 750-1000 kg of organic fertilizer per mu (approximately 1.5 to 2.5 acre). Measure soil fertility and supplement with nitrogen, phosphorus, potassium, and trace element fertilizers before tilling and transplanting. Increase the amount of fertilizer required as trees mature, produce high yields, and bear fruit. During the fruit set and flowering stages, apply a mixture of fertilizer and foliar fertilizer, spraying the soil to maintain flowering and fruiting.

[0139] Sea buckthorn is rich in various nutrients: vitamin C, E, tannins, polysaccharides, dietary fiber, minerals, various amino acids, especially SOD, and the content of common cultivation is as high as 300-2000 U / g.

[0140] Superoxide dismutase (SOD): has antioxidant and anti-aging effects and can eliminate free radicals in the body.

[0141] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 6-1 and the seaweed extract in 6-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0142] Actual Use Example 1-1 is changed to use the foliar fertilizer obtained in Example 1-1, and the rest is the same as Actual Use Example 1.

[0143] Actual Use Example 1-2 is changed to use the foliar fertilizer obtained in Example 1-2, and the rest is the same as Actual Use Example 1.

[0144] Ripe fresh roxburghii fruits were picked on the same day in the experimental plots, and the enzyme content in the pulp was tested according to conventional sampling (5 samples were taken for each sample, and the average value was then taken for comparison); the results are shown in the following table:

[0145]

[0146] Actual Use Example 3: A method for using foliar fertilizer for strawberries (Guizhou Academy of Agricultural Sciences and Tongren Experimental Field), using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0147] S3.1: Add 200-250 times the weight of natural water to the foliar fertilizer to dilute it to obtain a foliar fertilizer dilution solution. When transplanting the seedlings, use the foliar fertilizer dilution solution to soak the roots of the strawberry seedlings for 10-15 minutes. Let it dry for 20-30 minutes before planting;

[0148] Within 1 to 3 days after planting the strawberry seedlings, add 400 to 500 times the mass of natural water to the foliar fertilizer to dilute it to obtain foliar fertilizer dilution solution 2; use the foliar fertilizer dilution solution 2 for root irrigation and foliar atomization spraying; the dosage of the foliar fertilizer dilution solution 2 is about 80 to 100 kilograms per mu; about 60% is used for root irrigation and the rest is used for foliar atomization spraying.

[0149] S3.2: During the growth process (from the first flowering to about 20 days before the strawberry withering season), add 700-750 times the mass of natural water to the foliar fertilizer to dilute it to obtain foliar fertilizer diluent three; then use foliar fertilizer diluent three to evenly spray the leaves once every 10 days or so; the amount of foliar fertilizer diluent three used each time is 50-60 kilograms per mu.

[0150] Strawberry is a plant that bears fruit in multiple batches, so during the growth process, the number of atomization sprays of foliar fertilizer diluted liquid 3 is 8 to 10 times.

[0151] S3.3 For the soil where strawberries are planted, base fertilizer should be applied about one month in advance. In the planned strawberry planting area, balanced compound fertilizer should be applied mainly at a rate of 40 to 50 kilograms per mu, and trace element fertilizers should be added based on the actual soil fertility.

[0152] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 1-1 and the seaweed extract in 1-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0153] Actual Use Example 1-1 is changed to use the foliar fertilizer obtained in Example 1-1, and the rest is the same as Actual Use Example 1.

[0154] Actual Use Example 1-2 is changed to use the foliar fertilizer obtained in Example 1-2, and the rest is the same as Actual Use Example 1.

[0155] Ripe strawberries picked from the same experimental plot were sampled according to routine procedures to test the enzyme content in the flesh (5 samples were taken for each sample, and the average value was then taken for comparison). The results are shown in the following table:

[0156]

[0157] Strawberries are rich in various nutrients that are beneficial to the human body, such as various minerals, vitamins, and bioactive ingredients such as anthocyanins and dietary fiber.

[0158] Practical Use Example 4: A method for using foliar fertilizer for Kyoho grapes (experimental sites in Fuyang and Tongren, Zhejiang) using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0159] S4.1: Dilute the foliar fertilizer by adding 200-250 times its weight of natural water to obtain a foliar fertilizer dilution solution 1. When transplanting seedlings, soak the roots of the grape seedlings in the foliar fertilizer dilution solution 1 for 10-15 minutes. Allow to dry for 20-30 minutes before planting.

[0160] For mature grapevines, between grape harvest and September to November before soil freeze, dilute foliar fertilizer with 400-500 times the mass of natural water to create a second foliar fertilizer solution. Apply this second foliar fertilizer solution with base fertilizer and a compound fertilizer (50-100 kg of nitrogen, phosphorus, and potassium, depending on the age of the vines) to the vines. Then, irrigate the roots with this second foliar fertilizer solution. The application rate is approximately 80-100 kg per mu (approximately 80-100 kg). Soil fertility should be measured and supplemented with trace element fertilizers.

[0161] S4.2: During the growth process (about 100 to 120 days from late April to early August), add 700 to 750 times the mass of natural water to dilute the foliar fertilizer to obtain foliar fertilizer diluent three; then use foliar fertilizer diluent three to evenly spray the leaves once every 10 to 15 days; the amount of foliar fertilizer diluent three used each time is 50 to 60 kilograms per mu.

[0162] During this growth process, the number of atomization sprays of foliar fertilizer diluted liquid 3 is 6 to 8 times.

[0163] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 6-1 and the seaweed extract in 6-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0164] Actual Use Example 1-1 is changed to use the foliar fertilizer obtained in Example 1-1, and the rest is the same as Actual Use Example 1.

[0165] Actual Use Example 1-2 is changed to use the foliar fertilizer obtained in Example 1-2, and the rest is the same as Actual Use Example 1.

[0166] Actual Use Example 1-3, change to use the foliar fertilizer obtained in Example 1-3, the rest is the same as the Actual Use Example 1

[0167] Rough grapes from the same experimental plots were sampled and tested for enzyme content in the pulp according to routine procedures (five samples were taken for each sample, and the average value was then used for comparison). The results are shown in the following table:

[0168]

[0169] Actual Use Example 5: A method for using foliar fertilizer for green vegetables (Xuqiao Village Ecological Farm, Haining, Zhejiang) using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0170] S5.1: First, heat 2.5 to 3 times the total weight of the seeds in natural water to 40°C to 45°C, then soak or pour over the seeds for 2 to 5 minutes to activate the seeds;

[0171] Drain the activated seeds (until they no longer drip water) and add foliar fertilizer and stir evenly so that the foliar fertilizer is evenly attached to the surface of the seeds. Then dry them for 20 to 30 minutes before sowing.

[0172] Use 10 to 40 grams of foliar fertilizer for every 500 grams of seeds; the vegetable crop cycle is about 40 to 50 days, and most of the sowing is done without transplanting, and the seeds are mainly spread.

[0173] Dilute the foliar fertilizer with 400-500 times its mass of natural water to create a second foliar fertilizer dilution. Combine this second foliar fertilizer with a base fertilizer (15-15-15) of compound fertilizer with a balanced nitrogen, phosphorus, and potassium content of 30-40 kg per mu (approximately 20-30 kg per mu) of superphosphate and 5-10 kg per mu (approximately 80-100 kg per mu) of potassium sulfate. Apply the dilution evenly over the planting area, then apply the base fertilizer. When the soil is dry, turn the soil shallowly, level it, and spread.

[0174] S5.2: During the growth process from seedling emergence to harvest (about 25 to 35 days), add 400 to 500 times the mass of natural water to dilute the foliar fertilizer to obtain foliar fertilizer dilution solution 2; then use foliar fertilizer dilution solution 2 to evenly spray the leaves once every 5 to 7 days; the amount of foliar fertilizer dilution solution 3 used each time is 40 to 50 kilograms per mu.

[0175] During the growth process, the number of times the foliar fertilizer diluted liquid 3 is atomized and sprayed is 3 to 5 times.

[0176] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 6-1 and the seaweed extract in 6-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0177] Actual Use Example 1-1 is changed to use the foliar fertilizer obtained in Example 1-1, and the rest is the same as Actual Use Example 1.

[0178] Actual Use Example 1-2 is changed to use the foliar fertilizer obtained in Example 1-2, and the rest is the same as Actual Use Example 1.

[0179] The green vegetables harvested from the same experimental plot were sampled according to the routine method to test the enzyme content in the flesh (5 samples were taken for each sample, and the average value was then taken for comparison); the results are shown in the following table:

[0180]

[0181] Practical Use Example 6: A method for using foliar fertilizer for rice (Guizhou Longli base, Neixiangyou 2117 variety) using the foliar fertilizer obtained in Example 6; comprising the following steps:

[0182] S6.1: First, heat 2.5 to 3 times the total weight of the seeds in natural water to 40°C to 45°C, then soak or pour over the seeds for 2 to 5 minutes to activate the seeds;

[0183] Then filter the activated seeds (until they no longer drip water) and add foliar fertilizer and stir evenly so that the foliar fertilizer is evenly attached to the surface of the seeds. Then dry them for 20 to 30 minutes before sowing and seedling cultivation.

[0184] Use 10-40 grams of foliar fertilizer for every 500 grams of seeds;

[0185] S6.2: When the rice seedlings are ready for transplanting, dilute the foliar fertilizer by adding 200-250 times the mass of natural water to obtain foliar fertilizer dilution solution I. Evenly spray the leaves and seedling embryos with foliar fertilizer dilution solution I. The amount of foliar fertilizer dilution solution I used is approximately 20 kg.

[0186] S6.3: When the rice seedlings are ready for the second transplanting step, plow and irrigate the paddy field, initially leveling it. Maintain a 5-8 cm gap between the water and the soil surface, blocking water inflow and outflow, and then apply basal fertilizer. Apply approximately 3,000 kg of Neixiangyou 2117 organic fertilizer per mu (approximately 3000 kg) or 60-80 kg of a 45% compound fertilizer per mu (approximately 60-80 kg), adjusting the dosage based on soil fertility. Dilute the foliar fertilizer with 200-250 times the mass of natural water to create foliar fertilizer dilution I. Apply approximately 60-80 kg of dilution I evenly over the paddy surface. Then, level the paddy soil for the second transplanting step.

[0187] S6.4: During the growth process of rice from the beginning of heading to heading, flowering, grain filling, full ears, and about 15 days before ear maturity (60 days), add 700-750 times the mass of natural water to the foliar fertilizer to dilute it to obtain foliar fertilizer diluent three; then use foliar fertilizer diluent three to evenly spray the leaves once every 7-10 days; the amount of foliar fertilizer diluent three used each time is 50-60 kg per mu.

[0188] During the growth of the rice, the atomization spraying frequency of the foliar fertilizer diluted solution 3 was 6 to 8 times.

[0189] For the control, compared with Examples 6-1 and 6-2, the Chinese medicinal materials in 6-1 and the seaweed extract in 6-2 were eliminated; the rest were the same as in 1, and this was used as the control.

[0190] Actual Use Example 1-1 is changed to use the foliar fertilizer obtained in Example 1-1, and the rest is the same as Actual Use Example 1.

[0191] Actual Use Example 1-2 is changed to use the foliar fertilizer obtained in Example 1-2, and the rest is the same as Actual Use Example 1.

[0192] Rice harvested from the same batch of experimental plots was sampled according to routine procedures to test the enzyme content in the pulp (three samples were taken from each experimental plot, and the average value was then used for comparison). The results are shown in the following table:

[0193]

[0194] The comparison of the test results of the above actual use case and its control group is shown in the following table:

[0195]

[0196] Example 7

[0197] In this embodiment, a method for preparing a foliar fertilizer based on plant SOD cultivation is proposed, comprising the following steps:

[0198] 7.1 Dry crushing stage

[0199] This stage is the step to achieve the arrangement of mineral components and the formation of a thermally responsive infrastructure, including:

[0200] Raw material preparation: Weigh 3.5 parts each of medical stone, calcite, golden stone and zeolite, mix them evenly to obtain a mineral mixture.

[0201] Electrostatic field construction: An electrostatic generator is installed in the dry pulverization equipment to generate an electrostatic field of 1.5-2.5 kV / cm. The strength of the electrostatic field is adjusted according to the properties of the mineral components to ensure that different mineral particles receive surface charges, avoiding discharges and other safety hazards.

[0202] Temperature-responsive material preparation: Modified sodium alginate and gelatin were mixed in a mass ratio of 3:2 to prepare a temperature-responsive composite. The modified sodium alginate solution was prepared by dissolving the sodium alginate in deionized water to form a 2% solution, adding a quaternizing agent (such as quaternized chitosan) for modification, and reacting for 4 hours before precipitation, washing, and drying. Food-grade gelatin with a bloom value of 200-220 was used.

[0203] Electrostatically induced pulverization: Under the influence of an electrostatic field, the mineral mixture is fed into a pulverization chamber for dry pulverization. Simultaneously, the prepared temperature-responsive compound (5% of the total amount of the mineral mixture) is added. The electrostatic field imparts different charges to the mineral particles, forming an aligned structure. Simultaneously, the temperature-responsive compound is distributed on the mineral particle surfaces and in the interparticle spaces.

[0204] Screening treatment: The crushed product is screened through a 100-mesh standard sieve, and the unqualified part is returned for further crushing until all the crushed materials can pass through the 100-mesh sieve.

[0205] The electrostatically induced dry pulverization process described above yields a mineral powder with an aligned structure and thermally responsive functionality, laying the foundation for the subsequent preparation of a self-healing foliar fertilizer. Compared to traditional mechanical pulverization, this process improves pulverization efficiency and enables microscopic component arrangement and functional modification.

[0206] 7.2 Extract preparation stage

[0207] This stage is mainly to obtain active ingredients from plants and Chinese medicinal materials to provide bioactive substances for foliar fertilizers, including the preparation of seaweed extract, gypenosin extract, soybean lecithin extract and Chinese medicinal material extract. The preparation method is the same as that in Example 1.

[0208] 7.3 Biochar carrier preparation stage

[0209] This stage involves the preparation of temperature-responsive biochar carriers, which are key components in achieving the self-repairing ability of foliar fertilizers. Specifically, it includes:

[0210] Crop straw processing: Select crop straw such as corn straw or wheat straw, wash and remove impurities, dry at 60℃ until the moisture content is less than 10%, and chop into 1-3cm length for later use.

[0211] Pyrolysis and carbonization: The treated straw is placed in a pyrolysis furnace and heated to 350-450°C at a rate of 5°C / min in the absence of oxygen. The temperature is maintained for 2-3 hours. Pyrolysis temperature is a critical parameter; too low a temperature results in incomplete pyrolysis, while too high a temperature destroys the surface functional groups of the biochar.

[0212] Preparation of temperature-responsive crosslinking agent: Tannic acid and polysaccharide complex are mixed in a mass ratio of 1:1 to prepare a temperature-responsive crosslinking agent. The specific steps include:

[0213] Dissolve food-grade tannic acid in deionized water to prepare a 3% solution;

[0214] Gum arabic, guar gum, and xanthan gum were mixed in a mass ratio of 3:1:1 and dissolved in deionized water to prepare a 2% solution;

[0215] The two solutions were mixed in a volume ratio of 1:1, stirred and reacted at 40° C. for 2 hours to obtain a temperature-responsive crosslinker solution.

[0216] Biochar modification: The biochar obtained by pyrolysis was ground to a size of less than 200 mesh and added to a temperature-responsive crosslinker solution (biochar to solution mass ratio of 1:10). The mixture was ultrasonically dispersed for 30 min and then vacuum impregnated at 45 °C for 12 h to allow the crosslinker to penetrate into the pores of the biochar and react with the surface functional groups.

[0217] Drying treatment: The modified biochar suspension was first dried at 60°C to a semi-dry state, and then dried at 40°C under vacuum conditions for 24 hours to a constant weight to obtain a temperature-responsive modified biochar carrier.

[0218] The biochar carrier prepared through the above process has the following characteristics: ① Surface functional groups enhance the adsorption capacity of active ingredients; ② A porous structure facilitates the slow release of nutrients; and ③ It is sensitive to temperature changes and can adjust its structure according to ambient temperature, making it a core carrier material for the self-repairing ability of foliar fertilizers. Compared with traditional inorganic carriers, this biochar carrier is environmentally adaptable, realizing the resourceful utilization of crop straw and conforming to the concept of green and sustainable development.

[0219] 7.4 Wet milling stage

[0220] This stage is the process of mixing the components and performing preliminary construction. It is a step to ensure the uniformity and stability of the final product. Specifically, it includes:

[0221] Component preparation: Weigh the following components according to the formula:

[0222] Mineral powder obtained by electrostatic induced dry grinding (3.5 parts each of medical stone, calcite, golden stone, and zeolite); temperature-responsive modified biochar carrier (2 parts); seaweed extract (10 parts); Chinese herbal medicine extract (4 parts); soybean lecithin extract (6.5 parts); gypenoside extract (6.5 parts); indoleacetic acid (as a rooting agent, 2 parts);

[0223] Premixing: Add the above components to a mixer equipped with static neutralization and premix at a low speed (60-80 rpm) for 10-15 minutes to ensure that the components are initially mixed evenly. The static neutralization function is to prevent the components from agglomerating due to static electricity during the mixing process.

[0224] Wet milling: Transfer the premix to the wet milling equipment, add deionized water to adjust the solid-liquid ratio to 1:2, and then perform wet milling. The milling process adopts variable speed milling mode:

[0225] First, grind at a speed of 100-120 rpm for 15 minutes to achieve preliminary dispersion of the components;

[0226] Then, the mixture was milled at a speed of 150-180 rpm for 25 min to further refine the particles and promote the interaction between the components;

[0227] Finally, grind at 80-100 rpm for 10 minutes to make the mixture homogeneous.

[0228] Addition of Anti-Crop and Anti-Caking Agents: After milling is complete, add 2 parts of calcium cyanamide (as an anti-cropping agent) and 2 parts of an inorganic salt mixture (as an anti-caking agent, consisting of 30% sodium chloride, 40% calcium carbonate, and 30% copper sulfate) in that order. Continue milling for 10 minutes to allow them to mix with the other ingredients.

[0229] The wet milling process achieves uniform distribution of the components at the microscopic level and initial structural formation. During the wet milling process, the electrostatically induced mineral particles interact with the temperature-responsive modified biochar support and various extracts, initially forming a structurally and functionally complex system that lays the foundation for subsequent multi-level pore construction.

[0230] 7.5 Multi-level channel construction stage

[0231] In this stage, the three-level micro-meso-macro pore structure is constructed to achieve the release of foliar fertilizer nutrients and improve water retention performance, including:

[0232] Preparation of pore building agent: Modified starch is used as the main pore building agent, supplemented by porous silica gel and activated carbon. The preparation method of modified starch is as follows:

[0233] Soak regular corn starch in a 2% citric acid solution for 4 hours;

[0234] After filtration, heat treatment was performed at 120°C for 30 minutes to allow citric acid to react with starch for esterification.

[0235] After cooling, the mixture was washed with water until neutral, dried at 60°C, and ground to below 100 mesh to obtain modified starch.

[0236] Three-level channel construction:

[0237] Micropore Construction: Activated carbon powder (1% of the total mixture) was added to the wet-milled mixture and stirred for 15 minutes. The activated carbon's microporous structure (<2 nm) served as a template for the subsequent drying process, forming a microporous network primarily responsible for water retention.

[0238] Mesoporous construction: Add porous silica gel (2% of the total mixture) and stir for 15 minutes. The mesoporous structure of porous silica gel (2-50 nm) forms a medium-sized pore network, which is mainly used for the sustained release of small molecule active ingredients.

[0239] Macropore construction: Add the prepared modified starch (3% of the total mixture) and stir for 15 minutes. The modified starch forms macropores (>50nm) during the subsequent drying process, which mainly serve as release channels for large molecular active ingredients.

[0240] Temperature-responsive skeleton construction: After the three-level pore structure is completed, a temperature-responsive skeleton material—modified gelatin (2% of the total mixture)—is added and stirred for 15 minutes for uniform distribution. After drying, this material forms a skeleton structure throughout the particle that responds to temperature changes and is a key component in achieving the foliar fertilizer's self-healing capabilities.

[0241] pH adjustment: Use citric acid or sodium bicarbonate to adjust the pH value of the mixture to 6.0-7.0 to ensure the stability of each component and the smooth progress of the subsequent drying process.

[0242] Through this process, a three-level micro-meso-macro pore structure is constructed in the foliar fertilizer. Pores of different sizes play different roles: micropores retain water, mesopores provide sustained release of small-molecule active ingredients, and macropores serve as release channels for large-molecule active ingredients. This multi-level pore structure, combined with a temperature-responsive framework, gives the resulting foliar fertilizer water retention, sustained release, and self-repair capabilities, resolving the problem of traditional foliar fertilizers becoming ineffective in drought conditions and unable to recover after damage.

[0243] 7.6 Spray Drying Stage

[0244] This stage is the step to form a foliar fertilizer product with high dispersibility and stable structure, specifically including:

[0245] Pre-drying treatment: The mixture after multi-stage channel construction is screened to remove agglomerates to ensure the smooth progress of the subsequent spray drying process.

[0246] Urea addition: Add urea (make up to 100 parts) and stir evenly. Urea, as a nitrogen source, helps improve the water retention and solubility of foliar fertilizer.

[0247] Spray drying process:

[0248] Feed temperature control: Heat the mixture to 45-50℃ to maintain fluidity and facilitate spraying.

[0249] The inlet temperature of the drying tower is 150-160°C, and the outlet temperature is 70-80°C. Temperature control affects product quality. Too high a temperature will destroy heat-sensitive active ingredients, while too low a temperature will not achieve the desired drying effect.

[0250] Atomization pressure: 0.2-0.3MPa, ensuring the formation of uniform droplets.

[0251] Nozzle selection: Use dual-fluid nozzle to obtain uniform atomization effect.

[0252] Drying rate control: By adjusting the feed rate and hot air flow, the drying rate is controlled to form a porous structure of the particles.

[0253] Cooling and post-aging treatment: The spray-dried product is cooled to below 25°C at room temperature, and then post-aged in a sealed container for 24 hours to stabilize the product structure and improve storage stability.

[0254] Product inspection and packaging: Products are quality inspected and packaged after passing the inspection. The packaging material is moisture-proof and well-sealed aluminum foil composite bags to protect the products from the influence of environmental humidity.

[0255] The spray-drying process creates a micro-spherical foliar fertilizer with high dispersibility, excellent fluidity, and storage stability. During the drying process, temperature and humidity control preserves the multi-level pore structure, maximizing the functionality of the temperature-responsive material and biochar carrier, resulting in a high-performance plant-based SOD foliar fertilizer with self-healing capabilities.

[0256] This embodiment integrates electrostatic induced dry grinding, temperature responsive material application, biochar carrier modification, multi-stage pore construction and spray drying technologies to prepare a foliar fertilizer based on plant SOD cultivation, which has the following technical effects:

[0257] High dispersibility and uniformity: Electrostatically induced dry grinding technology enables the mineral components to form an arranged structure at the microscopic level. Combined with the uniform mixing of wet grinding, it solves the problems of uneven mixing and agglomeration of ingredients in traditional foliar fertilizers, improves the dispersibility and uniformity of the product, and makes the nutrients evenly distributed on the plant leaves.

[0258] Adhesion and permeability: The interaction between temperature-responsive materials and biochar carriers enables foliar fertilizers to form an adhesive film layer on the leaves of plants, thereby enhancing the adhesion of foliar fertilizers to the leaves, reducing nutrient loss caused by rainwater erosion, and improving the penetration of active ingredients into the leaves, thereby enhancing the absorption and utilization rate of nutrients.

[0259] Water retention and sustained release: The multi-level pore structure enables the foliar fertilizer to retain water, maintaining moisture and efficacy under drought conditions; pores of different sizes achieve release control for active ingredients of different molecular weights, solving the problems of low utilization rate and short duration of effect caused by the rapid release of nutrients in traditional foliar fertilizers.

[0260] Self-repairing ability: Through the effects of temperature-responsive materials, modified biochar carriers and multi-level pore skeletons, the prepared foliar fertilizer can use the temperature difference between day and night to repair structural damage. Under high temperature conditions during the day (such as above 28°C), part of the structure softens and flows to fill microcracks, and under low temperature conditions at night (such as below 18°C), it re-solidifies to form a stable structure, achieving periodic self-repair, solving the problem that traditional foliar fertilizers cannot recover after structural damage.

[0261] Environmental adaptability: The prepared foliar fertilizer can respond to environmental changes and adjust its structure and functional state, retain moisture under drought conditions, prevent active ingredients from degrading under high temperature conditions, and maintain structural integrity after rain washing, thereby enhancing the adaptability and stability of the foliar fertilizer under different agricultural environmental conditions.

[0262] Resource recycling: By using crop straw to prepare biochar carriers, the resource utilization of agricultural waste is realized, the environmental burden is reduced, and it is in line with the concept of sustainable agricultural development.

[0263] Easy to apply and long-lasting effect: The prepared foliar fertilizer is in the form of microspherical powder, which is easy to dissolve and apply; the self-repair ability and slow-release performance extend the duration of fertilizer effect, reduce the frequency of repeated application, save manpower and material resources, and improve crop yield and quality.

[0264] The realization of the above technical effects has solved the technical problems existing in traditional foliar fertilizers, provided new ideas and new directions for the development of foliar fertilizer technology, and has theoretical value and practical application value.

[0265] Example 8

[0266] This example is used to test the performance of the foliar fertilizer prepared by the preparation method of Example 7.

[0267] Experiment 1: Dispersion and uniformity test

[0268] Purpose of the experiment:

[0269] The foliar fertilizer product prepared by the present invention was verified to have good dispersibility and uniformity, and the effectiveness of the electrostatic induced dry pulverization technology was evaluated.

[0270] Experimental Materials:

[0271] A foliar fertilizer sample prepared by the process of the present invention (sample A); a foliar fertilizer sample prepared by a traditional physical mixing process (sample B); a commercially available foliar fertilizer product (sample C); experimental water (deionized water); and a dispersibility testing device.

[0272] Experimental steps:

[0273] Water dispersibility test:

[0274] Take three samples of the same mass (5 g) A, B, and C;

[0275] Add 100ml of deionized water respectively;

[0276] Stir gently for 30 seconds and then stop;

[0277] Record the time required for the sample to be completely dispersed;

[0278] After standing for 30 minutes, observe the sedimentation condition;

[0279] Particle size distribution test:

[0280] The particle size distribution of the three samples was determined using a laser particle size analyzer;

[0281] Each sample was measured 3 times and the average value was taken;

[0282] Experimental results;

[0283] The dispersibility test results of foliar fertilizer samples are shown in the following table:

[0284]

[0285] Results: 1. The foliar fertilizer prepared by the present invention (Sample A) exhibited significantly shorter complete dispersion time than conventional methods and commercially available products, demonstrating improved water dispersibility. 2. Sample A exhibited the lowest sedimentation rate, indicating greater suspension stability. 3. Sample A exhibited a narrower particle size distribution range and a lower coefficient of variation, indicating more uniform particle size.

[0286] The experimental results show that the foliar fertilizer prepared by electrostatic induced dry crushing technology has significantly improved dispersibility and uniformity, which is conducive to the uniform distribution of foliar fertilizer on plant leaves and the full utilization of effective ingredients.

[0287] Experiment 2: Water retention and sustained release test

[0288] Purpose of the experiment

[0289] The water retention and nutrient slow-release properties of the foliar fertilizer prepared by the multi-stage pore construction technology of the present invention were evaluated to verify its ability to maintain efficacy under drought conditions.

[0290] Experimental Materials:

[0291] A foliar fertilizer sample prepared by the process of the present invention (sample A); a foliar fertilizer sample prepared by a traditional physical mixing process (sample B); a commercially available foliar fertilizer product (sample C); a constant temperature and humidity chamber; a high performance liquid chromatograph (HPLC); a laser confocal microscope; a flow adsorption measurement device; and an adsorption equilibrium device.

[0292] Experimental steps:

[0293] Water retention test:

[0294] Take three samples of the same mass (2 g) A, B, and C and place them in Petri dishes of the same diameter;

[0295] Add 5 ml of deionized water to each sample to allow it to fully absorb

[0296] The samples were placed in a constant temperature and humidity chamber at 35°C and 30% relative humidity.

[0297] Weigh the sample every 4 hours and measure continuously for 72 hours

[0298] Calculate the moisture content change curve of samples at different time points

[0299] Multi-level pore structure determination:

[0300] The specific surface area and pore size distribution of the samples were determined using nitrogen adsorption-desorption method.

[0301] The specific surface area of ​​the samples was calculated using the BET equation;

[0302] The pore size distribution was analyzed using the BJH method;

[0303] The macroporous structure of the samples was determined by mercury intrusion porosimetry;

[0304] Nutrient release test:

[0305] Prepare 500 ml of each of pH 5.5, 6.5, and 7.5 buffer solutions;

[0306] 2 g of each sample was added to buffer solutions of different pH values;

[0307] The mixture was shaken at 25 °C (120 rpm) and samples were taken at 0.5 h, 1 h, 3 h, 6 h, 12 h, 24 h, 48 h, and 72 h.

[0308] HPLC was used to analyze the concentration of the active ingredients of the foliar fertilizer (using a certain amino acid as a marker) in the solution at each sampling time point;

[0309] Draw the nutrient release curve.

[0310] Experimental results:

[0311] The water retention and pore size distribution characteristics of the foliar fertilizer samples are shown in the following table:

[0312]

[0313] See Figure 1 Nutrient release curves of foliar fertilizer under different pH conditions.

[0314] Results: The water retention test results showed that sample A still maintained a moisture content of 32.5% after 72 hours, which was much higher than sample B (8.2%) and sample C (12.6%), demonstrating that the foliar fertilizer prepared by the present invention has excellent water retention. Multi-level pore structure analysis showed that the specific surface area of ​​sample A (135.7 m² / g) was 3.2 times that of sample B and 2.3 times that of sample C, and the micropore, mesopore, and macropore volumes were significantly higher than those of the control sample, confirming the effectiveness of the multi-level pore construction technology. The nutrient release curve showed that sample A exhibited significant sustained-release characteristics: samples B and C released more than 80% of their active ingredients within 6 hours; sample A reached a release rate of approximately 90% after 72 hours, showing a stable sustained-release effect. Sample A exhibited a relatively stable release curve under different pH conditions, indicating good adaptability in different environments.

[0315] Experimental results show that the foliar fertilizer prepared by the present invention through multi-level pore construction technology has excellent water retention and nutrient slow-release characteristics, can maintain moisture and efficacy under drought conditions, and at the same time achieve precise release control of active ingredients of different molecular weights through pores of different sizes, solving the problems of low utilization rate and short duration caused by the rapid release of nutrients in traditional foliar fertilizers.

[0316] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make more forms of equivalent embodiments based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A foliar fertilizer based on plant SOD cultivation, characterized in that, The raw materials include the following percentages by weight: Natural mineral powder 8-20%, seaweed extract 8-12%, Chinese medicinal material extract 2-6%, plant extract 10-16%, rooting agent 1-3%, anti-cropping agent 1-3%, anti-caking agent 1-3%, and carbonamide to make up the balance.

2. A foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The natural mineral powder is composed of medical stone: calcite: golden stone: zeolite = 2-5:2-5:2-5:2-5 in a weight ratio.

3. A foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The plant extract consists of soybean lecithin extract and gypenoside extract in a weight ratio of 5-8:5-8.

4. A foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The Chinese medicinal material is composed of chaga: ginseng: leech = 2-6:2-6:2-6 in a weight ratio.

5. A foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The rooting agent is indoleacetic acid.

6. The foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The anti-replanting agent is calcium cyanamide.

7. The foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The anti-caking agent is composed of sodium chloride: calcium carbonate: copper sulfate in a weight ratio of 1-3:1-3:1-3.

8. The foliar fertilizer based on plant SOD cultivation according to claim 1, characterized in that, The Chinese herbal medicine extract is prepared by grinding Chinese herbal medicines consisting of Chaga, ginseng and leech to a size of more than 60 mesh, adding 8 to 10 times the amount of deionized water according to a ratio, stirring in a reactor at a constant temperature of 85 to 90° C. for 20 to 24 hours, filtering the obtained filtrate and freeze-drying it to obtain the Chinese herbal medicine extract.

9. A method for preparing a foliar fertilizer based on plant SOD cultivation, for preparing the foliar fertilizer based on plant SOD cultivation according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: crush; Mixing carbonamide with natural mineral powder and then crushing it to obtain powder fertilizer; Step 2: Mixing; Powdered fertilizer, seaweed extract, plant extract, Chinese herbal medicine extract, rooting agent, anti-repeat agent, anti-caking agent and SOD enzyme powder are mixed and ground to obtain foliar fertilizer based on plant SOD cultivation.

10. An application of foliar fertilizer based on plant SOD cultivation, characterized in that: Applicable to sexually propagated crops and asexually propagated fruit trees.

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