Salt-resistant growth-promoting compound seed coating agent for crop seedling stage

Abstract

The invention discloses a salt-tolerant growth-promoting compound seed coating agent for a crop seedling stage. The salt-tolerant growth-promoting compound seed coating agent comprises a bactericide accounting for 1%-3% of the total mass, the dosage of the insecticide is 3%-6% of the total mass, and the dosage of the salt-tolerant component is 1%-2% of the total mass; the dosage of the salicylic acid is 0.05% of the total mass, the trace element fertilizer is silver oxide, and the dosage of the trace element fertilizer is 0.05%-0.15% of the total mass; the dosage of the film-forming agent is 2%-5% of the total mass, the dosage of the indoleacetic acid is 0.046% of the total mass, and the microbial bacterial liquid is bacillus beriberi and the dosage of the microbial bacterial liquid is 0.05%-0.08% of the total mass; the use amount of the dispersing agent is 0.046% of the total mass, and the balance is deionized water. The growth ability and stress resistance of crops in a saline-alkali environment are remarkably improved through the unique property of the nano material and the synergistic effect of the active ingredients, the yield increasing effect is remarkable, all the ingredients meet the environmental protection requirement, and the potential pollution risk to the environment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of crop seed coating agents, in particular to a salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage. 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 disadvantages 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. Therefore, it is necessary to develop a composite seed coating agent for salt-tolerant growth promotion in the seedling stage of crops. Summary of the invention

[0003] The purpose of the present invention is to provide a salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage, so as to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0005] On the one hand, the present invention comprises a fungicide dosage of 1% to 3% of the total mass; an insecticide dosage of 3% to 6% of the total mass, a salt-tolerant component dosage of 1% to 2% of the total mass; a salicylic acid dosage of 0.05% of the total mass, the trace element fertilizer is silver oxide, the dosage of which is 0.05% to 0.15% of the total mass; a film-forming agent dosage of 2% to 5% of the total mass, an indoleacetic acid dosage of 0.046% of the total mass, a microbial bacterial liquid of Bacillus belezzi, the dosage of which is 0.05% to 0.08% of the total mass; a dispersant dosage of 0.046% of the total mass, and the balance is deionized water.

[0006] Furthermore, the mass fraction of the active ingredient is as follows: the concentration of Bacillus velezinsis in the bacterial solution is 1×10 11 cfu / mL.

[0007] Furthermore, the fungicide is imidacloprid and succinimidyl, and the mass ratio thereof is 1:1.5.

[0008] Furthermore, the film-forming agent comprises, by weight, 30 parts of etherified starch, 12 parts of cellulose acetate, 12 parts of chitosan, 15 parts of polyvinyl alcohol, and 50 parts of grafted starch.

[0009] Furthermore, the salt-tolerant component includes cis-3-hexenyl acetate and betaine in a mass ratio of 1:1.5.

[0010] The beneficial effects of the present invention are:

[0011] The present invention is a salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage. Compared with the prior art, the present invention has the following technical effects:

[0012] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of promoting corn root growth under salt stress in this implementation case;

[0014] Figure 2 Schematic diagram of promoting the growth of the aboveground part of corn under salt stress in this implementation case DETAILED DESCRIPTION

[0015] 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.

[0016] Test materials

[0017] Seed dressing agent is a new type of compound seed dressing agent, which contains fungicides, insecticides, growth regulators, trace element fertilizers, film-forming agents and other ingredients.

[0018] Crop seeds: Wheat seeds and corn seeds are both local recommended varieties.

[0019] Soil: Local typical soil was selected and two treatments were set up: normal soil and saline-alkali soil.

[0020] Trial Groups:

[0021] Wheat group: divided into normal soil control group, saline-alkali soil control group, normal soil seed coating agent treatment group, and saline-alkali soil seed coating agent treatment group.

[0022] The fungicide composition of the formula also uses imidacloprid and succinimidyl, with a mass ratio of 1:1.5, and the total amount is 1.5% of the total mass of the wheat seed coating agent. The insecticide amount is 5% of the total mass of the wheat seed coating agent. The salt-tolerant components include cis-3-hexenyl acetate and betaine, with a mass ratio of 1:1.5, and the total amount is 1% of the total mass of the wheat seed coating agent. The amount of salicylic acid is 0.05% of the total mass of the wheat seed coating agent. The amount of nano silver oxide is 0.1% of the total mass of the wheat seed coating agent. The film-forming agent is composed of etherified starch, cellulose acetate, chitosan, polyvinyl alcohol, and grafted starch, with a total amount of 4% of the total mass of the wheat seed coating agent, and the amount of indoleacetic acid is 0.046% of the total mass of the wheat seed coating agent. The concentration of the microbial culture (Bacillus velezinense) is 1×10 11 cfu / mL, the dosage is 0.08% of the total mass of the wheat seed coating agent (the upper limit is taken to enhance the microbial effect), the dosage of the dispersant is 0.046% of the total mass of the wheat seed coating agent, and the balance is deionized water.

[0023] The formula composition of the corn group: the fungicide is imidacloprid and succinolide, the mass ratio is 1:1.5, the total amount is 2% of the total mass of the rapeseed seed dressing agent, the insecticide is 4.5% of the total mass of the rapeseed seed dressing agent (take the middle value, between 3% and 6%). The salt-tolerant ingredients include cis-3-hexenyl acetate and betaine, the mass ratio is 1:1.5, the total amount is 1.5% of the total mass of the rapeseed seed dressing agent, and the amount of salicylic acid is 0.05% of the total mass of the rapeseed seed dressing agent. The amount of trace element fertilizer (silver oxide) is 0.1% of the total mass of the rapeseed seed dressing agent, the film-forming agent is composed of 30 parts of etherified starch, 12 parts of cellulose acetate, 12 parts of chitosan, 15 parts of polyvinyl alcohol, and 50 parts of grafted starch, the total amount is 3.5% of the total mass of the rapeseed seed dressing agent, and the amount of indoleacetic acid is 0.046% of the total mass of the rapeseed seed dressing agent. The concentration of microbial culture (Bacillus velezinsis) was 1×10 11 cfu / mL, the dosage is 0.065% of the total mass of the rapeseed seed dressing agent, and the dosage of the dispersant is 0.046% of the total mass of the rapeseed seed dressing agent. The balance of deionized water is deionized water, which is used to adjust the total mass of the seed dressing agent to 100%. Implementation steps Accurately weigh each component according to the above formula.

[0024] The fungicide, the insecticide, the salt-tolerant component, salicylic acid, silver oxide, indoleacetic acid, the dispersant and the microbial liquid are mixed evenly.

[0025] Add film former and stir well to form a uniform paste.

[0026] Use an appropriate amount of deionized water to adjust the consistency of the seed coating agent for easy application.

[0027] Apply the seed coating agent evenly on the rapeseed seeds and sow them after drying.

[0028] Processing settings:

[0029] Control group: The seeds were not treated with seed coating agents and were directly sown in normal soil or saline-alkali soil.

[0030] Treatment group: seeds were treated with seed coating agent and sown in normal soil or saline-alkali soil.

[0031] Number of repetitions: Three repetitions were set for each treatment to improve the reliability of the experimental results.

[0032] Seed treatment: Coat wheat and rapeseed seeds according to the instructions of the seed coating agent.

[0033] Sowing and cultivation: Sow the treated seeds in pre-prepared soil and place them in a light incubator for cultivation, controlling appropriate temperature, humidity and light conditions.

[0034] Observation and recording: Regularly observe the germination, growth, and occurrence of diseases and pests of seeds, and record relevant data.

[0035] Harvest and assay: Figure 1 and 2 As shown, after the crops mature, they are harvested and their yield, quality and other indicators are measured.

[0036] Table 1 Comparison of yield and quality indicators of wheat examples and comparative examples

[0037]

[0038]

[0039] Table 2 Comparison of yield and quality indicators of corn examples and comparative examples

[0040]

[0041] Table 3 Comparison of yield and quality indicators of corn examples and comparative examples

[0042]

[0043] As shown in Table 1 and Table 2, this test verified that the new composite seed coating agent has good growth-promoting effects, salt tolerance and safety for both wheat and rapeseed. Seed coating agent treatment can improve the germination rate, growth status and yield of crops, while reducing the incidence of diseases and insect pests. Under saline-alkali soil conditions, the effect of seed coating agent treatment is particularly obvious, indicating that the seed coating agent has good salt tolerance components and growth-promoting effects. Therefore, the new composite seed coating agent has broad prospects for promotion and application.

[0044] 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 and growth-promoting composite seed coating agent for crops at the seedling stage, characterized in that: The dosage of the fungicide is 1% to 3% of the total mass; the dosage of the insecticide is 3% to 6% of the total mass, the dosage of the salt-tolerant component is 1% to 2% of the total mass; the dosage of salicylic acid is 0.05% of the total mass, the trace element fertilizer is silver oxide, and the dosage is 0.05% to 0.15% of the total mass; the dosage of the film-forming agent is 2% to 5% of the total mass, the dosage of indoleacetic acid is 0.046% of the total mass, the microbial bacterial liquid is Bacillus belezzi, and the dosage is 0.05% to 0.08% of the total mass; the dosage of the dispersant is 0.046% of the total mass, and the balance is deionized water.

2. The salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage according to claim 1, characterized in that: The mass fraction of the active ingredients is as follows: the concentration of Bacillus velezinsis in the bacterial solution is 1×10 11 cfu / mL.

3. The salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage according to claim 1, characterized in that: The bactericides are imidacloprid and succinimidyl, and the mass ratio thereof is 1:1.

5.

4. The salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage according to claim 1, characterized in that: The film-forming agent comprises, by weight, 30 parts of etherified starch, 12 parts of cellulose acetate, 12 parts of chitosan, 15 parts of polyvinyl alcohol, and 50 parts of grafted starch.

5. The salt-tolerant and growth-promoting composite seed coating agent for crops at the seedling stage according to claim 1, characterized in that: The salt-tolerant component comprises cis-3-hexenyl acetate and betaine, and the mass ratio thereof is 1:1.5.

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