Casual area filling planting method of long Wu Huai beans

Abstract

The invention discloses a vacant area filling planting method for long Wuhua beans, and belongs to the technical field of planting, the method comprises the following steps: (1) sowing: deeply plowing the land by using a deep plowing machine, selecting pest-free and damage-free long Wuhua bean seeds, and sowing by using a drill sowing mode; (2) root system management: performing root cutting treatment on lateral roots 15-20 days after seedlings of the long Wuhua beans emerge, applying secretion-promoting particles to the surface of the soil after the root cutting treatment, and then ploughing the secretion-promoting particles into the soil; (3) later-period management: watering the long Wu beans, managing diseases and insect pests, and harvesting or returning the long Wu beans to the field after the long Wu beans are planted for 3 months, so that the problem that harmful carboxylic acid is accumulated due to promotion of root secretion of the long Wu beans is solved.

Description

Technical Field

[0001] The invention relates to the technical field of filling planting, in particular to a filling planting method for Changwu Huai beans. Background Art

[0002] After continuous cropping, soil conditions will deteriorate, soil salinization, reduced soil fertility, and severe soil compaction will occur, which will increase the difficulty of crop planting, slow crop growth, reduced yields, and reduce the economic value of agricultural products. In order to reduce the negative impact of continuous cropping on the soil, filler crops can be planted in the gaps between the original crops. The planted filler crops can be harvested as feed or returned to the field. Compared with traditional bare land fallow, the introduction of filler crops has many ecological benefits, such as improving soil structure, promoting nutrient circulation, increasing soil fertility and microbial activity, controlling soil erosion, and inhibiting weed growth and pests and diseases.

[0003] Changwu Huai beans, as a leguminous green manure, are rich in protein, vitamins, minerals and other nutrients, and have high economic value. Changwu Huai beans can be used as a filler crop and planted in the gaps between the original crops. They can effectively improve the properties of the soil and increase the fertility of the soil. However, it is usually necessary to return Changwu Huai beans to the field to effectively improve the properties of the soil. The improvement effect on the soil during the planting period is small, and it takes a long time to improve the properties of the soil. Therefore, the properties of the soil can be improved by promoting the secretion of plant roots. This is because the root secretions contain substances such as proteins, amino acids, and sugars that can effectively promote plant growth, while also promoting the circulation and accumulation of organic carbon in the soil, improving soil fertility, and thus improving the physical properties of the soil. However, with the release of root secretions, the harmful carboxylic acids released by the roots will gradually accumulate, inhibiting the growth of crops, and even affecting the growth of the next crop, resulting in a decrease in the yield of the next crop. Harmful carboxylic acids in the soil can be removed by applying quicklime, but applying too much quicklime will affect the physical and chemical properties of the soil and the normal growth of plants, and the treatment effect is not good.

[0004] Therefore, the present invention provides a method for planting Changwu Huai beans in idle places, which reduces the accumulation of harmful carboxylic acids while promoting the release of root secretions of Changwu Huai beans, thereby improving the improvement effect of planting Changwu Huai beans in idle places on the soil. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a method for planting Changwu Huai beans in a gap-filling manner to solve the problem of accumulation of harmful carboxylic acids due to promotion of root secretion of Changwu Huai beans.

[0006] The present invention solves the above technical problems by the following technical means:

[0007] (1) Sowing: After deep plowing the land with a deep plowing machine, select pest-free and undamaged Changwu Huai bean seeds, sow them in rows with a plant spacing of 40-45 cm and a row spacing of 10-12 cm, and the sowing rate is 4-5 kg / mu;

[0008] (2) Root management: 15-20 days after the emergence of the Changwu Huai bean, the lateral roots are cut, and after the root cutting treatment, secretion-promoting particles are applied to the soil surface, and the soil is plowed again to mix the secretion-promoting particles with the soil evenly;

[0009] (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

[0010] Furthermore, the root cutting operation in step (2) is: cutting the lateral roots with a shovel, and the number of lateral roots removed does not exceed 50% of the total lateral roots.

[0011] Damaging the root system of Changwu Huaidou can effectively stimulate root regeneration, accelerate cell division at the wound, and effectively promote the growth of lateral roots, thereby increasing the effective area of ​​root secretion and promoting the release of root secretions.

[0012] Further, the amount of secretion-promoting granules used is: 2 Use 15-20g of secretion-enhancing granules for soil.

[0013] Furthermore, the preparation method of the secretion-promoting granules is as follows:

[0014] S1: Mix magnesium chloride and sodium silicate evenly and add them to water, stir and react at 60-65° C. for 2-3 hours, let stand and cool to room temperature, add sodium carbonate, stir and continue to stand for 3-5 hours, filter, dry and crush to obtain a composite insoluble product;

[0015] S2: adding polyglutamic acid to water, stirring evenly to obtain a polyglutamic acid solution, then adding sodium sulfite and arginine to the polyglutamic acid solution, stirring evenly to obtain a mixed solution, then adding polyvinyl alcohol to the mixed solution, heating and stirring until the polyvinyl alcohol is dissolved, then cooling to room temperature, adding the composite insoluble substance, stirring evenly to obtain a composite gel;

[0016] S3: adding the composite insoluble substance to the composite gel, drying it at 30-35° C. for 2-3 h, and then crushing it to obtain secretion-promoting granules.

[0017] Furthermore, in the preparation method S1 of the secretion-promoting granules, the particle size of the composite insoluble substance is 0.1-0.2 mm.

[0018] Furthermore, in the preparation method S1 of the secretion-promoting granules, the mass ratio of magnesium chloride, sodium silicate and sodium carbonate is (3-3.5): (4-5): (2-2.2).

[0019] Furthermore, in the secretory granule preparation method S3, the mass ratio of polyglutamic acid, sodium sulfite, arginine, polyvinyl alcohol, and the composite insoluble substance is (1.2-1.5): (1-1.2): (0.8-1.2): (3-4): (4-5).

[0020] Furthermore, in the secretory granules preparation method S3, the particle size of the secretory granules is 0.2-0.5 cm.

[0021] Adding secretion-promoting particles to the soil can effectively promote the increase of root secretions, thereby increasing the activity of soil microorganisms and improving the physical and chemical properties of the soil. A certain amount of polyglutamic acid added to the secretion-promoting particles can promote the division and growth of plant root cells, thereby promoting the growth and development of its root system, effectively increasing the root area, and allowing more secretions to be released from the roots. At the same time, the added sodium sulfite can effectively improve the vitality of the root system, maintain the root cells at a high level of vitality, promote the release of secretions in the root cells, and increase the secretion rate of root secretions; arginine is also added to the composite gel to further improve the vitality of the root system and promote the release of root secretions.

[0022] With the increase of the release amount of root secretion, the content of organic matter in the soil will be increased, and the fertility of the soil will be improved, but the phenolic acid substances such as p-hydroxybenzoic acid, ferulic acid, coumaric acid, and syringic acid in its secretion will accumulate in the soil, inhibiting the growth of plants, and not processing in time will also affect the growth of the next crop. Therefore, the present invention uses secretion-promoting particles to effectively adsorb harmful carboxylic acids such as free ferulic acid and coumaric acid in the soil, and then reacts with the sodium carbonate in the secretion-promoting particles so as to remove harmful carboxylic acids, but sodium carbonate is directly added to the soil to cause the pH of the soil to increase, change the physical and chemical properties of the soil, and cause the root system of Changwu Huaidou to absorb, and absorbing too much sodium carbonate will inhibit the growth of plants. So the present invention uses polyvinyl alcohol to make composite gel to wrap the composite insoluble substance containing sodium carbonate, prevent sodium carbonate from overflowing, and sodium carbonate can also promote the formation of polyvinyl alcohol gel in addition, and improve the stability of polyvinyl alcohol gel, prevent the excessive decomposition of secretion-promoting particles, and expose the composite insoluble substance inside too quickly, causing the sodium carbonate in the composite insoluble substance to enter the soil, and adversely affecting plants. In addition, if sodium carbonate is directly loaded on the precipitate, the loading efficiency is low. Therefore, sodium carbonate is added when the magnesium silicate precipitate generated by the reaction of magnesium chloride and sodium silicate is crystallized, and the mixture is crystallized so that the sodium carbonate is directly loaded on the magnesium silicate crystals to obtain a composite insoluble substance.

[0023] Beneficial effects:

[0024] The present invention can promote the secretion of the root system of the Changwu Huai beans by cutting the lateral roots of the Changwu Huai beans and coordinating the secretion-promoting granules for treatment, so as to improve the fertility of the soil and improve the properties of the soil. The improved soil has good physical properties, the crops planted grow well, and the yield is increased. Therefore, the present invention can greatly promote the development of agriculture and increase agricultural income. At the same time, the secretion-promoting granules can be self-degraded in the soil and will not pollute the environment. The method is simple and easy to operate and is worth promoting. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to specific embodiments:

[0026] Embodiment 1: the planting method of Changwu Huai beans

[0027] Preparation of secretagogue granules:

[0028] S1: 3g magnesium chloride and 4g sodium silicate were mixed and added to 120ml water, stirred at 60°C for 2h, cooled to room temperature, added 2g sodium carbonate, stirred and allowed to stand for 3h, filtered, dried and crushed to obtain a composite insoluble product of about 0.1mm;

[0029] S2: 1.2 g of polyglutamic acid was added to 100 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. 1 g of sodium sulfite and 0.8 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. 3 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. After the mixture was cooled to room temperature, 4 g of the composite insoluble substance was added, and the mixture was stirred to obtain a composite gel.

[0030] S3: The composite gel is dried at 30° C. for 2 h, and then crushed to obtain secretion-promoting granules of about 0.2 cm.

[0031] Planting of Changwu Huaidou:

[0032] (1) Sowing: After deep plowing the land with a deep plowing machine, select pest-free and undamaged Changwu Huai bean seeds, sow them in rows with a plant spacing of 40 cm and a row spacing of 10 cm, and the sowing rate is 5 kg per mu;

[0033] (2) Root management: After 15 days after the emergence of the Changwu Huai beans, the lateral roots are cut with a shovel. The number of lateral roots cut is 50% of the total lateral roots. Then the secretion-promoting granules are plowed into the soil. The soil is plowed again to mix the secretion-promoting granules with the soil evenly. The amount of secretion-promoting granules used each time is 100 g / m2. 2 15 g of secretagogue granules were used;

[0034] (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

[0035] Embodiment 2: The second method of planting Changwu Huai beans

[0036] Preparation of secretagogue granules:

[0037] S1: 3.2 g of magnesium chloride and 4.5 g of sodium silicate were mixed and added to 128 ml of water, stirred at 62 ° C for 2.2 h, cooled to room temperature, added 2.1 g of sodium carbonate, stirred and continued to stand for 4 h, filtered, dried and crushed to obtain a composite insoluble material of about 0.15 mm;

[0038] S2: 1.35 g of polyglutamic acid was added to 116 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. Then, 1.1 g of sodium sulfite and 1 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. Then, 3.5 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. Then, the mixture was cooled to room temperature, and 4.5 g of the composite insoluble substance was added, and the mixture was stirred to obtain a composite gel.

[0039] S3: The composite gel was dried at 32° C. for 2.5 h, and then crushed to obtain secretion-promoting granules of about 0.3 cm.

[0040] Planting of Changwu Huaidou:

[0041] (1) Sowing: After deep plowing the land with a deep plowing machine, select pest-free and undamaged Changwu Huai bean seeds, sow them in rows with a plant spacing of 42 cm and a row spacing of 11 cm, and the sowing rate is 4.5 kg / mu;

[0042] (2) Root management: After 18 days of germination, the lateral roots are cut with a shovel. The number of lateral roots cut is 50% of the total lateral roots. Then the secretion-promoting granules are plowed into the soil. The soil is plowed again to mix the secretion-promoting granules with the soil evenly. The amount of secretion-promoting granules used each time is 100 g / m2. 2 15 g of secretagogue granules were used;

[0043] (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

[0044] Embodiment 3: The third method of planting Changwu Huai beans

[0045] Preparation of secretagogue granules:

[0046] S1: 3.5 g of magnesium chloride and 5 g of sodium silicate were mixed and added to 140 ml of water, stirred at 65 ° C for 2.5 h, cooled to room temperature, added 2.2 g of sodium carbonate, stirred and continued to stand for 5 h, filtered, dried and crushed to obtain a composite insoluble material of about 0.1 mm;

[0047] S2: 1.5 g of polyglutamic acid was added to 133 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. Then, 1.2 g of sodium sulfite and 1.2 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. Then, 4 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. Then, 5 g of the composite insoluble substance was added after the mixture was cooled to room temperature, and the mixture was stirred to obtain a composite gel.

[0048] S3: The composite gel is dried at 35° C. for 3 h, and then crushed to obtain secretion-promoting granules of about 0.5 cm.

[0049] Planting of Changwu Huaidou:

[0050] (1) Sowing: After deep plowing the land with a deep plowing machine, select pest-free and undamaged Changwu Huai bean seeds, sow them in rows with a plant spacing of 42 cm and a row spacing of 12 cm, and the sowing rate is 4 kg per mu;

[0051] (2) Root management: After 20 days of germination, use a spade to cut the lateral roots. The number of lateral roots cut should not exceed 50% of the total lateral roots. Then, turn the secretion-promoting granules into the soil and turn the soil again to mix the secretion-promoting granules with the soil. The amount of secretion-promoting granules used each time is 100 g / m2. 2 15 g of secretagogue granules were used;

[0052] (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

[0053] Comparative Example 1:

[0054] This comparative example is in contrast to Example 1, the only difference being that sodium sulfite, polyglutamic acid and arginine are not added during the preparation of secretion-promoting granules. The specific method is as follows:

[0055] S1: 3g magnesium chloride and 4g sodium silicate were mixed and added to 120ml water, stirred at 60°C for 2h, cooled to room temperature, added 2g sodium carbonate, stirred and allowed to stand for 3h, filtered, dried and crushed to obtain a composite insoluble product of about 0.1mm;

[0056] S2: Add 3 g of polyvinyl alcohol to 100 ml of water, heat and stir until the polyvinyl alcohol is dissolved, then cool to room temperature and add 4 g of the composite insoluble substance, stir evenly to obtain a composite gel;

[0057] S3: The composite gel is dried at 30° C. for 2 h, and then crushed to obtain secretion-promoting granules of about 0.2 cm.

[0058] The method for planting the Changwu Huai beans in this comparative example is the same as that in Example 1.

[0059] Comparative Example 2:

[0060] This comparative example is in contrast to Example 1, the only difference being that sodium carbonate is not added during the preparation of the secretion-promoting granules. The specific method is as follows:

[0061] S1: 3g magnesium chloride and 4g sodium silicate were mixed and added to 120ml water, stirred and reacted at 60°C for 2h, cooled to room temperature, allowed to stand for 3h, filtered, dried and crushed to obtain a composite insoluble product of about 0.1mm;

[0062] S2: 1.2 g of polyglutamic acid was added to 100 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. 1 g of sodium sulfite and 0.8 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. 3 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. After the mixture was cooled to room temperature, 4 g of the composite insoluble substance was added, and the mixture was stirred to obtain a composite gel.

[0063] S3: The composite gel is dried at 30° C. for 2 h, and then crushed to obtain secretion-promoting granules of about 0.2 cm.

[0064] The method for planting the Changwu Huai beans in this comparative example is the same as that in Example 1.

[0065] Comparative Example 3:

[0066] This comparative example is in contrast to Example 1, the only difference being that in the process of preparing the secretion-promoting granules, sodium carbonate is not loaded in the composite insoluble material, but an immersion method is adopted. The specific method is as follows:

[0067] S1: 3g magnesium chloride and 4g sodium silicate were mixed and added to 120ml water, stirred at 60°C for 2h, cooled to room temperature, stirred and allowed to stand for 3h, filtered, dried and crushed to obtain a composite insoluble product of about 0.1mm;

[0068] S2: Add 2g of sodium carbonate to 120ml of solution and stir evenly to obtain a sodium carbonate solution, then add the composite insoluble material to the sodium carbonate solution and soak for 3h, filter and dry to obtain the composite insoluble material loaded with sodium carbonate;

[0069] S3: 1.2 g of polyglutamic acid was added to 100 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. 1 g of sodium sulfite and 0.8 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. 3 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. After the mixture was cooled to room temperature, 4 g of the composite insoluble substance of loaded sodium carbonate was added, and the composite gel was obtained after stirring.

[0070] S4: Dry the composite gel at 30° C. for 2 h, and then crush it to obtain secretion-promoting granules of about 0.2 cm.

[0071] Comparative Example 4:

[0072] This comparative example is in contrast to Example 1, the only difference being that no composite insoluble substance is added during the preparation of secretion-promoting granules. The specific method is as follows:

[0073] S1: 1.2 g of polyglutamic acid was added to 100 ml of water, and the mixture was stirred to obtain a polyglutamic acid solution. Then, 1 g of sodium sulfite and 0.8 g of arginine were added to the polyglutamic acid solution, and the mixture was stirred to obtain a mixed solution. Then, 3 g of polyvinyl alcohol was added to the mixed solution, and the mixture was heated and stirred until the polyvinyl alcohol was dissolved. After stirring, a composite gel was obtained.

[0074] S2: The composite gel is dried at 30°C for 2 hours, and then crushed to obtain secretion-promoting granules of about 0.2 cm.

[0075] The method for planting the Changwu Huai beans in this comparative example is the same as that in Example 1.

[0076] Comparative Example 5:

[0077] This comparative example is in contrast to Example 1, except that the secretion-promoting particles are not prepared into a gel state. The specific method is as follows:

[0078] S1: 3g magnesium chloride and 4g sodium silicate were mixed and added to 120ml water, stirred at 60°C for 1.5h, cooled to room temperature, added 2g sodium carbonate, stirred and allowed to stand for 15min, filtered, dried and crushed to obtain a composite insoluble product of about 0.1mm;

[0079] S2: Add 1.2 g of polyglutamic acid into 100 ml of water, stir evenly to obtain a polyglutamic acid solution, then add 1 g of sodium sulfite and 0.8 g of arginine to the polyglutamic acid solution, stir evenly to obtain a mixed solution, then add 4 g of the complex insoluble substance into the mixed solution and soak it for 1 hour. After filtering, dry it at 30°C for 2 hours to obtain secretory granules.

[0080] experiment:

[0081] (1) Sowing: We selected an empty field after wheat harvest as the experimental field and divided it into nine independent experimental fields, each with an area of ​​50 m 2 1. The soil conditions of each test field were the same. After deep plowing the land with a deep plowing machine, pest-free and undamaged Changwu Huai bean seeds were selected and sown in rows with a plant spacing of 40 cm and a row spacing of 10 cm. The sowing rate was 5 kg per mu.

[0082] (2) Root management: After 15 days after the emergence of the Changwu Huai beans, the lateral roots are cut with a shovel. The number of lateral roots cut is 50% of the total lateral roots. Then the secretion-promoting granules are plowed into the soil. The soil is plowed again to mix the secretion-promoting granules with the soil evenly. The amount of secretion-promoting granules used each time is 100 g / m2. 2 15 g of secretagogue granules were used;

[0083] (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

[0084] According to the above method, the following experiments were performed:

[0085] 1. Experimental group 1 used the secretion-promoting granules prepared in Example 1;

[0086] 2. Comparative groups 1-5 used secretion-promoting particles prepared using comparative examples 1-5;

[0087] 3. Control group 6 did not use secretion-promoting granules, and the specific steps (2) were as follows:

[0088] (2) Root management: After 15 days of germination, use a spade to cut the lateral roots, and the number of lateral roots cut should be 50% of the total lateral roots;

[0089] 4. The control group 7 was not subjected to root cutting treatment. The specific steps (2) were as follows:

[0090] (2) Root management: 15 days after the emergence of the Changwu beans, the secretion-promoting particles are plowed into the soil, and the soil is plowed again to mix the secretion-promoting particles with the soil evenly. The amount of secretion-promoting particles used each time is 100 g / m2. 2 15 g of secretagogue granules were used;

[0091] 5. Control group 8 did not use secretion-promoting granules and did not perform root cutting.

[0092] Before sowing, the contents of soil organic carbon, microbial biomass carbon, and harmful carboxylic acids (p-hydroxybenzoic acid and ferulic acid) in the 0-10 cm soil layer of the test field were measured, among which organic carbon = 10.67 g / kg, microbial biomass carbon = 68.2 mg / kg, ferulic acid = 5.42 mg / kg, and p-hydroxybenzoic acid = 8.85 mg / kg.

[0093] Two months after sowing, 50 Changwu Huai beans were randomly selected to test their plant heights, and the organic carbon and harmful carboxylic acids (p-hydroxybenzoic acid, ferulic acid) in the soil were tested again. The results are shown in Table 1:

[0094] Table 1

[0095]

[0096]

[0097] Analyzing Table 1, we can get:

[0098] 1. Compared with experimental group 1, control group 1 did not add sodium sulfite, polyglutamic acid, and arginine during the preparation of secretion-promoting granules, and the root growth rate was lower, resulting in a smaller secretion area of ​​root secretions and a lower root secretion rate. Since the release of root secretions can increase the activity of soil microorganisms, thereby increasing the microbial biomass carbon and organic carbon content, the microbial biomass carbon content and organic carbon content of control group 1 with lower root secretion release were reduced, further affecting the growth of crops, resulting in a lower plant height of Changwu Huai beans in control group 1.

[0099] 2. Compared with experimental group 1, control group 2 did not add sodium carbonate during the preparation of secretion-promoting granules. The decomposition rate of secretion-promoting granules was faster, and the organic acid reaction could not be removed. Therefore, the treatment effect of control group 2 on organic acids was reduced, resulting in the growth of crops being affected and the plant height being low. Compared with experimental group 1, control group 3 did not load sodium carbonate in the composite insoluble matter, but used the immersion method to adsorb sodium carbonate. The loading rate of sodium carbonate on the composite insoluble matter was low, resulting in a lower content of adsorbed sodium carbonate, a lower treatment rate for harmful carboxylic acids, and a higher content of harmful carboxylic acids in the soil.

[0100] 3. Compared with experimental group 1, in the process of preparing secretion-promoting granules, no composite insoluble substances were added in control group 4. The harmful carboxylic acids released by the roots could be adsorbed by the composite gel. However, after the composite gel decomposed, it could no longer process the harmful carboxylic acids in the soil, resulting in lower contents of ferulic acid and p-hydroxybenzoic acid in control group 4, which affected the growth of crops. Therefore, the plant height of Changwu beans was lower.

[0101] 4. Compared with experimental group 1, control group 5 did not prepare the secretion promoter into a gel state. The sodium carbonate in the secretion promoter particles would directly enter the soil, affect the pH of the soil, and be directly absorbed by the crops, resulting in the inhibition of crop growth and reduction of plant height.

[0102] 5. Compared with experimental group 1, control group 6 did not use secretion-promoting particles, and the release rate of root secretions was slower. However, due to root damage, the release of root secretions would be increased, and the harmful carboxylic acids released from the roots could not be effectively treated, resulting in higher ferulic acid and parahydroxybenzoic acid contents in the soil, further affecting plant growth. Compared with experimental group 1, control group 7 did not damage the root system, and the secretions released by the roots were less. This is because damaging the root system can effectively stimulate the growth of the root system and promote the secretion of the root system. Therefore, the lack of root damage in control group 7 will lead to lower organic carbon content and soil microbial biomass carbon. At the same time, the secretion of the root system is reduced, and the content of harmful carboxylic acids in the soil will also be reduced. Compared with experimental group 1, control group 8 did not remove the root lateral roots and did not add secretion-promoting particles. The root system of Changwu Huaidou grew slower and had lower vitality, resulting in less release of root secretions, lower organic carbon content and soil microbial biomass carbon.

[0103] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.

Claims

1. A method for planting Changwu Huai beans, characterized in that: The method comprises the following steps: (1) Sowing: After deep plowing the land with a deep plowing machine, select pest-free and undamaged Changwu Huai bean seeds and sow them in drill sowing; (2) Root management: 15-20 days after the emergence of the Changwu bean, the lateral roots are cut, and after the root cutting treatment, secretion-promoting particles are applied to the soil surface, and then the secretion-promoting particles are plowed into the soil; (3) Post-management: Water the Changwu Huai beans and manage pests and diseases. Harvest or return the Changwu Huai beans to the field three months after planting.

2. The method for planting Changwu Huai beans according to claim 1, characterized in that: The root cutting operation in step (2) is: cutting the lateral roots with a shovel, and the number of lateral roots cut off does not exceed 50% of the total lateral roots.

3. The method for planting Changwu Huai beans according to claim 2, characterized in that: The amount of secretion-promoting granules used is: per 1m 2 Use 15-20g of secretion-enhancing granules for soil.

4. The method for planting Changwu Huai beans according to claim 3, characterized in that: The preparation method of the secretion-promoting granules is as follows: S1: Mix magnesium chloride and sodium silicate evenly and add them to water, stir and react at 60-65° C. for 2-3 hours, let stand and cool to room temperature, add sodium carbonate, stir and continue to stand for 3-5 hours, filter, dry and crush to obtain a composite insoluble product; S2: adding polyglutamic acid to water, stirring evenly to obtain a polyglutamic acid solution, then adding sodium sulfite and arginine to the polyglutamic acid solution, stirring evenly to obtain a mixed solution, then adding polyvinyl alcohol to the mixed solution, heating and stirring until the polyvinyl alcohol is dissolved, then cooling to room temperature, adding the composite insoluble substance, stirring evenly to obtain a composite gel; S3: adding the composite insoluble substance into the composite gel, drying it at 30-35° C. for 2-3 h, and then crushing it to obtain secretion-promoting granules.

5. The method for planting Changwu Huai beans according to claim 4, characterized in that: In the preparation method S1 of the secretion-promoting granules, the particle size of the composite insoluble substance is 0.1-0.2 mm.

6. The method for planting Changwu Huai beans according to claim 5, characterized in that: In the preparation method S1 of the secretion-promoting granules, the mass ratio of magnesium chloride, sodium silicate and sodium carbonate is (3-3.5): (4-5): (2-2.2).

7. The method for planting Changwu Huai beans according to claim 6, characterized in that: In the secretory granule preparation method S3, the mass ratio of polyglutamic acid, sodium sulfite, arginine, polyvinyl alcohol, and composite insoluble substance is (1.2-1.5): (1-1.2): (0.8-1.2): (3-4): (4-5).

8. The method for planting Changwu Huai beans according to claim 7, characterized in that: The particle size of the secretory granules in the secretory granules preparation method S3 is 0.2-0.5 cm.

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