A plant nutrient solution that efficiently promotes growth

Abstract

The present invention relates to a plant nutrient solution for efficiently promoting growth, and the plant nutrient solution for efficiently promoting growth includes the following components by mass: 10-20 parts of modified diatomite, 5-10 parts of nutrients, 0.5-3 parts of auxin, 1-3 parts of organic acid, 1-5 parts of auxiliary agent, and 50-100 parts of water; wherein the modified diatomite is sodium alginate and humic acid modified diatomite. The present invention adopts modified diatomite, nutrients, auxin, organic acid and other components to obtain nutrient solution, which can improve soil structure, regulate plant growth, promote crop yield and income increase, and the nutrient solution is more stable, solves the problems existing in the prior art, and has good application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to a plant nutrient solution capable of efficiently promoting growth. Background Art

[0002] Plant nutrient solution can effectively increase the growth and development rate of plants. It is an important component of modern agriculture and has a significant impact on promoting the healthy development of crops and increasing and stabilizing yields.

[0003] Plant growth promoting liquid is composed of a variety of nutrients, including major elements such as nitrogen, phosphorus, potassium and trace elements, as well as polysaccharides, proteins, plant hormones and growth regulators. It can not only directly supply the nutrients needed by plants, but also promote plant branching, flowering and fruiting by regulating plant growth and development.

[0004] Common plant nutrient solutions use gibberellins, auxins, abscisic acid, etc. as plant growth regulators to promote the rooting, germination, and fruiting of crops. Prior art CN103238600A uses gibberellin, pH regulators, dispersants, wetting agents, disintegrants and other ingredients to obtain a plant growth regulator containing gibberellins; prior art CN112457111A uses diatomaceous earth, polyaspartic acid, sodium alginate, chitosan, compound fertilizer, plant growth regulators and other ingredients to obtain a seed coating agent. At present, there are many reports on the technical solution of using multiple active ingredients to obtain plant growth promoters to increase the growth rate of plants.

[0005] However, most of the existing technical solutions directly mix components such as growth regulators and nutrients. The compatibility and stability between the components are poor, and they are prone to become ineffective after long-term storage. In the application stage, there are also problems such as insufficient growth promotion effect and unclear yield increase effect, which cannot meet the needs of actual applications.

[0006] In summary, it is urgent to develop a new technical solution to solve the defects in the existing technology. Summary of the invention

[0007] Based on this, the present invention provides a plant nutrient solution that efficiently promotes growth. The present invention uses modified diatomaceous earth, nutrients, auxins, organic acids and other ingredients to compound to obtain a nutrient solution, which can improve soil structure, regulate plant growth, and promote crop yield and income. At the same time, the nutrient solution is more stable, which solves the problems existing in the prior art and has good application prospects.

[0008] The object of the present invention is to provide a plant nutrient solution that efficiently promotes growth, wherein the plant nutrient solution that efficiently promotes growth comprises the following components in parts by weight:

[0009]

[0010]

[0011] in,

[0012] The modified diatomaceous earth is diatomaceous earth modified by sodium alginate and humic acid.

[0013] Sodium alginate is a natural soil conditioner that can promote the formation of soil aggregate structure, improve the internal void space of the soil, increase the biological activity of the soil, promote the release of fast-acting nutrients, promote root growth, and improve the stress resistance and resistance to repeated cropping of crops. Sodium alginate is also a natural polysaccharide that can stimulate the production of non-specific active factors in plants and regulate the balance of endogenous elements, thereby improving yield and quality.

[0014] Humic acid has a certain promoting effect on plant growth, can improve soil fertility and increase crop yields, improve soil aeration and promote root growth, and also has the functions of improving plant resistance to diseases and pests, reducing pesticide usage, and protecting the environment. However, excessive humic acid may cause plant burns and soil acidification.

[0015] Diatomaceous earth has more pores and a larger specific surface area, which can increase soil permeability and water retention, thereby improving the physical properties of the soil. At the same time, the rich silica in diatomaceous earth is beneficial to promoting the photosynthesis efficiency of plants and increasing the growth rate. Diatomaceous earth also contains rich trace elements and minerals, which can further enhance plant yields and improve the crops' resistance to diseases and pests, and stress resistance.

[0016] Auxin is an important hormone that regulates plant growth. It plays an important role in cell division and differentiation, rhizome formation, fruit development and leaf fall, and has the effects of promoting seed germination, growth, early flowering and fruiting, etc. This type of substance has been widely used in a variety of food crops, and is more widely used in vegetables. It has a significant promoting effect on the yield and quality of crops and vegetables. However, traditional plant auxins such as indoleacetic acid and gibberellins are pesticides, so their uses are limited. The present invention uses new plant endogenous auxins such as zeatin, zeatin riboside, and brassinolide to replace traditional pesticide ingredients, expanding the application space of such products.

[0017] Furthermore, the preparation method of the modified diatomite comprises the following steps:

[0018] S1, mixing humic acid, acryloyl chloride and a catalyst, and reacting to obtain modified humic acid;

[0019] S2, mixing sodium alginate, 3-aminoethanol vinyl ether and a catalyst, and reacting to obtain modified sodium alginate;

[0020] S3, mixing diatomaceous earth and a silane coupling agent, and ultrasonically heating to obtain an intermediate product;

[0021] S4, mixing the intermediate product, modified humic acid, modified sodium alginate and an initiator, heating and reacting them to obtain modified diatomaceous earth.

[0022] Furthermore, in step S1, the reaction temperature is 0-30°C and the reaction time is 12-36h.

[0023] Furthermore, in step S2, the reaction temperature is 15-30°C and the reaction time is 2-8h.

[0024] Furthermore, in step S1, the catalyst is organic ammonia; in step S2, the catalyst is EDC (1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride) and NHS (hydroxysuccinimide).

[0025] Furthermore, in step S3, the temperature of the ultrasonic heating is 30-90° C. and the time is 5-20 hours.

[0026] Furthermore, in step S4, the heating reaction temperature is 60-80°C and the time is 6-36h.

[0027] Furthermore, in step S4, the mass ratio of the intermediate product, modified humic acid and modified sodium alginate is 6:(0.5-2):(1-3).

[0028] Furthermore, the nutrients are selected from one or more of polysaccharides, inorganic salts, urea and enzymes.

[0029] Furthermore, the auxin is selected from one or more of zeatin, zeatin riboside, and brassinolide.

[0030] Furthermore, the organic acid is selected from one or more of fatty acids, citric acid, fumaric acid, itaconic acid, and amino acids.

[0031] Furthermore, the auxiliary agent is selected from one or more of a dispersant, a stabilizer, an emulsifier, an antioxidant, and a preservative.

[0032] The present invention has the following beneficial effects:

[0033] The present invention first performs acrylic esterification treatment on diatomite, humic acid and sodium alginate to introduce double bonds, and then mixes the above components for free radical polymerization, thereby grafting humic acid and sodium alginate into the pore structure of diatomite, which is conducive to improving the stability of active components, and the hydroxyl, carboxyl, glycoside and other groups in the modified diatomite can form intermolecular forces with components such as auxin, polysaccharides, and organic acids, and has stronger compatibility, and plays a better adsorption and fixation effect on nutrients. Through the synergistic effect between multiple components, on the basis of improving stability, it further promotes the absorption and effectiveness of nutrients, thereby playing a role in promoting crop growth and increasing yield. In summary, the plant nutrient solution of the present invention has the technical effect of efficiently promoting growth, overcomes the defects existing in the prior art, has good application prospects, and is of great significance to the development of agricultural cultivation technology. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical solution of the present invention, the following examples are listed. Unless otherwise stated, the raw materials, reactions and post-treatment methods shown in the examples are common raw materials on the market and technical methods well known to those skilled in the art.

[0035] The words "preferred", "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that can provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0036] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers indicating, for example, the amounts of ingredients used in the specification and claims should be understood to be modified in all cases by the term "about". Therefore, unless indicated to the contrary, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary depending on the desired properties to be obtained by the present invention.

[0037] The polysaccharide in the embodiment of the present invention is pectin polysaccharide, which is purchased from Zhengzhou Jiuting Chemical Products Co., Ltd.

[0038] The auxin in the embodiment of the present invention is zeatin and brassinolide in a mass ratio of 1:1.

[0039] The particle size of the diatomaceous earth in the embodiment of the present invention is 20 μm.

[0040] The preparation method of modified diatomite in the embodiment of the present invention comprises the following steps:

[0041] S1. Use 20 mL of anhydrous dichloromethane as solvent, add 5 g of humic acid, 1 g of acryloyl chloride and 1 g of triethylamine at 0°C, heat to 30°C, react for 24 hours, filter, wash and dry to obtain modified humic acid;

[0042] S2, dissolving 2 g of sodium alginate in 200 mL of dilute hydrochloric acid with a pH of 4 to obtain a sodium alginate solution, dissolving 0.96 g of EDC and 0.58 g of NHS in 5 mL of deionized water to prepare a catalyst solution, then adding the catalyst solution to the sodium alginate solution, stirring at 15° C. for 30 min, then adding 0.58 mL of 3-aminoethanol vinyl ether, continuing to stir and react at 15° C. for 5 h, using 800 mL of ethanol for sedimentation, filtering, washing, and drying to obtain modified sodium alginate;

[0043] S3, using a 1:1 volume ratio of ethanol-water mixture as solvent, adding 10 g of diatomaceous earth and 2 g of KH570, adjusting the pH to 4 with acetic acid, stirring at 70° C. for 6 h, filtering, washing, and drying to obtain an intermediate product;

[0044] S4. Using water as solvent, the intermediate product, modified humic acid, modified sodium alginate and ammonium persulfate in a mass ratio of 6:1:1.5:0.1 are mixed, reacted at 70° C. for 6 hours under a nitrogen atmosphere, filtered, washed and dried to obtain modified diatomaceous earth.

[0045] The "parts" in the embodiments of the present invention refer to parts by mass.

[0046] Example 1

[0047] A highly efficient plant nutrient solution for promoting growth, comprising the following components in parts by weight:

[0048]

[0049] The method for preparing the highly efficient growth-promoting plant nutrient solution comprises the following steps:

[0050] The modified diatomaceous earth and other ingredients are blended according to the above mass fractions and stirred evenly to obtain the highly efficient plant nutrient solution for promoting growth.

[0051] Example 2

[0052] A highly efficient plant nutrient solution for promoting growth, comprising the following components in parts by weight:

[0053]

[0054]

[0055] The method for preparing the highly efficient growth-promoting plant nutrient solution comprises the following steps:

[0056] The modified diatomaceous earth and other ingredients are blended according to the above mass fractions and stirred evenly to obtain the highly efficient plant nutrient solution for promoting growth.

[0057] Example 3

[0058] A highly efficient plant nutrient solution for promoting growth, comprising the following components in parts by weight:

[0059]

[0060] The method for preparing the highly efficient growth-promoting plant nutrient solution comprises the following steps:

[0061] The modified diatomaceous earth and other ingredients are blended according to the above mass fractions and stirred evenly to obtain the highly efficient plant nutrient solution for promoting growth.

[0062] Comparative Example 1

[0063] The difference between this comparative example and Example 1 is that the modified diatomaceous earth is replaced by a mixture obtained by blending unmodified diatomaceous earth with humic acid and sodium alginate in a mass ratio of 6:1:1.5, and the other ingredients and preparation method are the same as those in Example 1.

[0064] Comparative Example 2

[0065] The difference between this comparative example and Example 1 is that in the preparation method of modified diatomaceous earth, step S2 is omitted, and in step S4, unmodified sodium alginate is used to replace modified sodium alginate. Other components and preparation methods are the same as those in Example 1.

[0066] Test Case

[0067] The compositions prepared in the examples and comparative examples were subjected to performance tests.

[0068] Test method:

[0069] A total of 6 treatment groups were set up, and each treatment group planted 3 lettuces of the same growth into pots, and the soil mass in each pot was equal. Each group applied the same conventional fertilizer, one of which did not add other ingredients, and the remaining five groups added the plant nutrient solution prepared in Examples 1-3 and Comparative Examples 1-2 according to 5wt% of the fertilizer. After 30 days of planting, the lettuces were taken out and the weight was measured, and the average weight of each group of lettuces was calculated. During this period, the management of the lettuces followed the agricultural operation.

[0070] After the compositions prepared in the examples and comparative examples were stored at room temperature for 30 days, they were retested according to the above method.

[0071] The test results are shown in Table 1.

[0072] Table 1 Test results

[0073]

[0074] According to Table 1, it can be concluded that the efficient growth-promoting plant nutrient solution of the embodiment of the present invention has a significant effect on the growth of lettuce, effectively improves the growth efficiency of the plant, and the weight is significantly higher than that of the control example using only conventional fertilizers. At the same time, the nutrient solution sample of the embodiment has good stability and can still improve the growth rate of the plant after long-term storage; while the comparative example replaces the modified diatomaceous earth, resulting in reduced compatibility between components and stability of active substances, and the effect of promoting plant growth is not ideal, and the effect further decreases after long-term storage.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0076] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plant nutrient solution that efficiently promotes growth, characterized in that: The highly efficient plant nutrient solution for promoting growth comprises the following components in parts by weight: Wherein, the modified diatomaceous earth is diatomaceous earth modified by sodium alginate and humic acid; The preparation method of the modified diatomite comprises the following steps: S1, mixing humic acid, acryloyl chloride and a catalyst, and reacting to obtain modified humic acid; S2, mixing sodium alginate, 3-aminoethanol vinyl ether and a catalyst, and reacting to obtain modified sodium alginate; S3, mixing diatomaceous earth and a silane coupling agent, and ultrasonically heating to obtain an intermediate product; S4, mixing the intermediate product, modified humic acid, modified sodium alginate and an initiator, heating and reacting to obtain modified diatomaceous earth.

2. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S1, the reaction temperature is 0-30°C and the reaction time is 12-36h.

3. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S2, the reaction temperature is 15-30°C and the reaction time is 2-8h.

4. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S1, the catalyst is organic ammonia; in step S2, the catalyst is EDC and NHS.

5. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S3, the temperature of the ultrasonic heating is 30-90° C. and the time is 5-20 hours.

6. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S4, the heating reaction temperature is 60-80°C and the time is 6-36h.

7. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: In step S4, the mass ratio of the intermediate product, modified humic acid and modified sodium alginate is 6:(0.5-2):(1-3).

8. The plant nutrient solution for promoting growth efficiently according to claim 1, characterized in that: The nutrients are selected from one or more of polysaccharides, inorganic salts, urea and enzymes.

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