Salt-tolerant growth-promoting nano-material composite seed coating agent

Abstract

The invention discloses a salt-tolerant growth-promoting nano-material composite seed coating agent, which comprises 6 parts of a bactericide, 4 parts of an insecticide, 1 part of a plant regulator, 0.4 part of a nano-zinc oxide solution, 0.04 part of a dispersant, 0.1 part of a film-forming agent, 0.3 part of a bacillus beriberi solution, 0.2 part of a humectant, 0.01 part of a pH regulator, and the balance of water. Through the unique property of the nano material and the synergistic effect of the active ingredients, the growth ability and stress resistance of crops in the saline-alkali environment are remarkably improved, and the yield increasing effect is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of crop seed coating agents, and in particular to a salt-resistant growth-promoting nano material composite seed coating agent. Background Art

[0002] With the increasing severity of global climate change and salinization of agricultural land, improving the growth ability and yield of crops in saline-alkali environments has become an important topic of agricultural research. At present, there are many seed coating agents on the market that promote crop growth and stress resistance, and some of these products enhance the stress resistance of crops by adding specific chemicals or microbial preparations. However, these existing technical solutions often have the following shortcomings when dealing with high-salinity environments: although some seed coating agents can improve the salt tolerance of crops to a certain extent, their effects are often not significant enough to meet the high demand for saline-alkali land cultivation. The chemical components in some products may cause potential pollution to the soil and groundwater environment, which is not conducive to the sustainable development of agriculture. Seed coating agents that use high-end microorganisms or special chemicals as additives have a high production cost, which limits their large-scale promotion and application. In complex and changeable saline-alkali environments, the effective ingredients of some seed coating agents are easily degraded or ineffective, resulting in unstable actual application effects.

[0003] In view of the deficiencies of the above-mentioned prior art solutions, the present invention provides a salt-tolerant growth-promoting nano material composite seed coating agent. Therefore, it is necessary to develop a salt-tolerant growth-promoting nano material composite seed coating agent. Summary of the invention

[0004] The purpose of the present invention is to provide a salt-tolerant growth-promoting nanomaterial composite seed coating agent to solve the problems existing in the above-mentioned prior art, aiming to significantly improve the growth ability and stress resistance of crops in saline-alkali environments through innovative material combinations and preparation processes, while ensuring the environmental friendliness and cost-effectiveness of the product.

[0005] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0006] In one aspect, the present invention comprises the following steps:

[0007] The invention comprises 6 parts of bactericide, 4 parts of insecticide, 1 part of plant regulator, 0.4 parts of nano zinc oxide solution, 0.04 parts of dispersant, 0.1 parts of film former, 0.3 parts of bacillus belezzi bacterial solution, 0.2 parts of moisturizer, 0.01 parts of pH regulator, and the balance is water.

[0008] Furthermore, the plant regulator includes salicylic acid, potassium dihydrogen phosphate and indolebutyric acid in a ratio of 15:2:2.

[0009] Furthermore, the nano zinc oxide material solution is prepared by the following method: suspending the nano zinc oxide material in ultrapure water to obtain a nano zinc oxide material suspension, and subjecting the nano zinc oxide material suspension to ultrasonic treatment for dispersion, wherein the concentration of the nano zinc oxide material solution is 200 mg / L.

[0010] Furthermore, the pH adjuster is citric acid or sodium hydroxide.

[0011] Furthermore, the fungicide is a copper preparation and an organic sulfur fungicide in a composite mass ratio of 1:2.

[0012] Furthermore, the seed coating agent is in the form of a wettable powder, a water-dispersible granule, an aqueous emulsion, a microemulsion or a suspension.

[0013] In another aspect, the seed coating agent is used for promoting the healthy growth of crops.

[0014] Furthermore, the seed coating agent is used to promote the growth of crops, wherein the crops include soybeans, corn, cotton, wheat and peanuts.

[0015] Furthermore, the mass ratio of the seed coating agent to corn seeds is 1:20-30; the mass ratio of the seed coating agent to wheat seeds is 1:30-35; the mass ratio of the seed coating agent to cotton seeds is 1:20-25; the mass ratio of the seed coating agent to soybean seeds is 1:70-80; the mass ratio of the seed coating agent to peanut seeds is 1:60-70. The beneficial effects of the present invention are:

[0016] The present invention is a salt-resistant growth-promoting nano material composite seed coating agent. Compared with the prior art, the present invention has the following technical effects:

[0017] (1) The present invention significantly improves the growth ability and stress resistance of crops in saline-alkali environments through the synergistic effect of the unique properties of nanomaterials and active ingredients, and has a significant yield-increasing effect. All ingredients of the present invention meet environmental protection requirements and reduce potential pollution risks to the environment.

[0018] (2) The present invention reduces production costs by optimizing material selection and preparation process, which is conducive to large-scale promotion and application.

[0019] (3) The nanocomposite system of the present invention improves the stability of the active ingredients and ensures the long-lasting effect of the seed coating agent in a complex environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A comparative schematic diagram of promoting maize root growth under salt stress;

[0021] Figure 2 A comparative schematic diagram of promoting the growth of the aboveground part of corn under salt stress;

[0022] Figure 3 Schematic diagram of root system comparison between the treatment group and the control group DETAILED DESCRIPTION

[0023] The present invention is further described below by means of specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0024] The present invention adopts randomized block design, each treatment is repeated three times, and the experimental materials are mainly corn, soybean and wheat varieties grown locally.

[0025] Seed coating preparation: Prepare the seed coating according to the formula provided.

[0026] Seed treatment: Mix the seeds with a seed coating formulation including 6 parts of fungicide, 4 parts of insecticide, 1 part of plant regulator, 0.4 parts of nano zinc oxide solution, 0.04 parts of dispersant, 0.1 parts of film-forming agent, 0.3 parts of Bacillus belize solution, 0.2 parts of moisturizer, 0.01 parts of pH adjuster and the balance of water.

[0027] Data analysis: Analysis of variance (ANOVA) and Duncan's multiple comparison test were used to assess differences among treatments.

[0028] Implementation Case 1:

[0029] Application of seed coating agent on corn

[0030] The fungicides, insecticides, plant regulators and nano zinc oxide contained in the seed coating are designed to improve the germination rate and plant growth of corn seeds in salinized soil. The ratio of salicylic acid, potassium dihydrogen phosphate and indolebutyric acid in the plant regulator is 15:2:2, which can reduce the inhibitory effect of salt on the growth of crop seedlings and promote root vitality and nutrient absorption.

[0031] Corn germination rate: Figure 1 The comparative diagram of promoting corn root growth under salt stress is shown in Figure 60.

[0032]

[0033] In an environment of mmol NaCl, the germination potential and germination rate of corn seeds treated with seed coating agents increased by 36.6% and 28.9%, respectively, while the germination potential and germination rate of the control group were 62% and 68%, respectively, and the germination potential and germination rate of the treatment group were 84.9% and 87.9%, respectively. Figure 2 This is a comparative schematic diagram of promoting the growth of the aboveground part of corn under salt stress.

[0034] In a 90mmol NaCl environment, the germination potential and germination rate of corn seeds treated with the seed coating agent increased by 32% and 30%, respectively, while the germination potential and germination rate of the control group were 84.0% and 87.3%, respectively.

[0035] Plant growth: The plant height, root length and biomass of the treated group were 20%, 25% and 28% higher than those of the control group, respectively. The corn yield of the seed coating agent treated group was 18% higher than that of the control group on average.

[0036] Implementation case 2: Application of seed coating agent on soybean

[0037] The application of soybean seed coating takes into account the need for salt tolerance. The Bacillus velezensis in the seed coating, as a biological control agent, further promotes plant growth by improving soil microbial communities and providing additional plant growth-promoting substances. In addition, the addition of humectants and pH regulators helps maintain the moisture and pH balance of seeds in high-salt environments, thereby improving the germination rate and growth of soybeans in salinized soils.

[0038] Soybean germination rate In a 90mmol NaCl environment, the germination rate of soybean seeds treated with seed coating agents increased by 34%, the germination rate of the control group was 65%, and that of the treated group was 87%.

[0039] Plant growth: The plant height, root length and biomass of the treated group were 15%, 20% and 22% higher than those of the control group, respectively.

[0040] Yield: The soybean yield of the seed coating agent treatment group increased by an average of 13% compared with the control group.

[0041] Treatment Group Germination rate (%) Yield (kg / mu) Control group 65 150 Treatment Group 87 170

[0042] Implementation case 3: Application of seed coating agent on wheat

[0043] The application of wheat seed coating agent places special emphasis on salt tolerance. The solution of nano zinc oxide material in the seed coating agent is dispersed by ultrasonic treatment to form a 200 mg / L solution, which has been proven to effectively improve the salt tolerance of rapeseed seeds during the germination period. In addition, the synergistic effect of plant regulators and Bacillus velezinsis in the seed coating agent helps the growth and development of wheat in salinized soil.

[0044] Wheat germination rate: In a 90mmol NaCl environment, the germination rate of wheat seeds treated with seed coating agents increased by 38%, the germination rate of the control group was 65%, and that of the treated group was 90%.

[0045] Plant growth: The plant height, root length and biomass of the treated group were 18%, 130% and 26% higher than those of the control group, respectively. The wheat yield of the seed coating agent treated group was 15% higher than that of the control group on average.

[0046] Treatment Group Germination rate (%) Root length at seedling stage (cm) Yield (kg / mu) Control group 65 4.75 200 Treatment Group 90 10.95 230

[0047] The present invention uses nano-grade material nano zinc oxide as a basic carrier, which has excellent adsorption, stability and biocompatibility, can effectively carry and slowly release various active substances, and is compounded with Bacillus berezzi bacteria liquid. These components work synergistically, such as Figure 3 As shown in the results, it not only promotes the development of crop roots and enhances the osmotic regulation ability of cells, but also improves the tolerance and absorption and utilization ability of crops to salt, and significantly improves the seed germination rate of corn, soybean and wheat, which may be attributed to the fungicide and insecticide in the seed dressing agent to effectively control soil-borne pathogens and pests, thereby reducing early seed losses. In addition, the addition of plant regulators and nano zinc oxide may enhance the stress resistance and germination potential of seeds. The improvement in plant growth may be related to the nutritional and biostimulant components in the seed dressing agent, which promote root development and early plant growth. As a biological control agent, Bacillus velezii bacterial solution may further promote plant growth by improving soil microbial communities and providing additional plant growth-promoting substances. The increase in yield is the ultimate manifestation of the seed treatment effect, which shows that the new seed dressing agent not only works at the seed germination stage, but also continuously provides benefits to plant health and productivity throughout the growth cycle.

[0048] The results showed that the new seed coating agent had a significant positive impact on seed germination rate, plant growth and yield of corn, soybeans and wheat. Further optimization and customization may provide more personalized solutions for specific crops and environmental conditions.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A salt-tolerant growth-promoting nanomaterial composite seed coating agent, characterized in that: It includes 6 parts of fungicide, 4 parts of insecticide, 1 part of plant regulator, 0.4 parts of nano zinc oxide solution, 0.04 parts of dispersant, 0.1 parts of film-forming agent, 0.3 parts of Bacillus belezzi bacteria solution, 0.2 parts of humectant, 0.01 parts of pH regulator, and the balance is water.

2. The salt-tolerant growth-promoting nanomaterial composite seed coating agent according to claim 1, characterized in that: The plant regulator includes salicylic acid, potassium dihydrogen phosphate and indolebutyric acid in a ratio of 15:2:

2.

3. The salt-tolerant growth-promoting nanomaterial composite seed coating agent according to claim 1, characterized in that: The nano zinc oxide material solution is prepared by the following method: suspending the nano zinc oxide material in ultrapure water to obtain a nano zinc oxide material suspension, and subjecting the nano zinc oxide material suspension to ultrasonic treatment for dispersion, wherein the concentration of the nano zinc oxide material solution is 200 mg / L.

4. The salt-tolerant growth-promoting nanomaterial composite seed coating agent according to claim 1, characterized in that: The pH regulator is citric acid or sodium hydroxide.

5. The salt-tolerant growth-promoting nanomaterial composite seed coating agent according to claim 1, characterized in that: The fungicide is a copper preparation and an organic sulfur fungicide in a composite mass ratio of 1:

2.

6. The salt-tolerant growth-promoting nanomaterial composite seed coating agent according to claim 1, characterized in that: The seed coating agent is in the form of wettable powder, water dispersible granules, aqueous emulsion, microemulsion or suspension.

7. Use of the seed coating agent as claimed in any one of claims 1 to 6 in promoting the healthy growth of crops.

8. The use according to claim 7, characterized in that The seed coating agent is used in promoting the growth of crops, wherein the crops include soybean, corn, cotton, wheat and peanut.

9. The use according to claim 8 is characterized in that The mass ratio of the seed coating agent to corn seeds is 1:20-30; the mass ratio of the seed coating agent to wheat seeds is 1:30-35; the mass ratio of the seed coating agent to cotton seeds is 1:20-25; the mass ratio of the seed coating agent to soybean seeds is 1:70-80; and the mass ratio of the seed coating agent to peanut seeds is 1:60-70.

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