CN111528230A - Foliage resistance and control agent for controlling heavy metal pollution of rice and preparation method and use method thereof - Google Patents
Foliage resistance and control agent for controlling heavy metal pollution of rice and preparation method and use method thereof Download PDFInfo
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- CN111528230A CN111528230A CN202010309184.5A CN202010309184A CN111528230A CN 111528230 A CN111528230 A CN 111528230A CN 202010309184 A CN202010309184 A CN 202010309184A CN 111528230 A CN111528230 A CN 111528230A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/08—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings with oxygen as the ring hetero atom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/50—Surfactants; Emulsifiers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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Abstract
The invention discloses a foliar resistance and control agent for controlling heavy metal pollution of rice, a preparation method and a use method thereof, wherein the foliar resistance and control agent comprises the following components in parts by weight: 0.1-1 part of soluble selenium, 20-30 parts of soluble silicon, 50-80 parts of water-soluble zinc, 80-120 parts of water-soluble potassium, 3-5 parts of chitin, 10-20 parts of tea saponin, 20-30 parts of ascorbic acid, 200-400 parts of deionized water, 5-7 parts of absolute ethyl alcohol and 10-30 parts of surfactant. The invention avoids direct treatment of soil, controls the absorption of heavy metals by crops by spraying the resistance control agent on the leaf surface, reduces the content of heavy metals in edible parts of agricultural products, and has the advantages of natural material, wide raw material source, simple preparation, convenient operation and use, high efficiency and good resistance control effect.
Description
Technical Field
The invention relates to the technical field of prevention and treatment of heavy metal pollution of agricultural products, in particular to a foliar inhibition and control agent for controlling heavy metal pollution of rice, and a preparation method and a use method thereof.
Background
The rice is one of the main grains in China, more than 60% of people in China take the rice as staple food, the rice planting area is nearly 2869 hectares, 1/5 is occupied in the global rice planting area, the annual output of the rice reaches 1.85 hundred million tons and is about 1/3 of the total world output, and therefore, the safety of the rice cannot be ignored. The factors influencing the safety quality of rice are many, wherein the heavy metal pollution of soil and the deterioration of environmental quality are important factors and sources causing the quality problem of rice, and the cadmium pollution is the most serious factor influencing the quality of rice.
There are many measures for preventing and controlling the cadmium exceeding of rice, and the aim of safe production is achieved by mainly repairing the polluted soil. The effective method for restoring and treating cadmium pollution in farmland is to apply some soil passivation materials, including lime, fly ash, hydroxyapatite, organic fertilizer and the like, so as to improve the pH value of soil, increase the adsorption sites of soil, reduce the activity of cadmium in soil and prevent and control the absorption of rice roots. However, because of the strong migration ability of heavy metal cadmium in the crop body, a part of cadmium ions are still absorbed by the rice root and then migrate to the stem, the leaf and the seed. In addition, the rice has obviously stronger adsorption effect on heavy metals than corn, soybean and other crop varieties. In addition, the continuous stability of the passivation material is reduced along with the prolonging of the application time, heavy metal cadmium in the soil is likely to be reactivated and then migrates to edible parts of crops, and particularly, acid rice soil in a southern rice area is more likely to be reactivated due to acid precipitation and the like.
Besides, the method for treating the cadmium-polluted soil mainly comprises the soil treatment method, the vitrification technology, the electrokinetic technology, the soil leaching technology and the like. Although the technologies have the advantages of thoroughness and stability, the engineering quantity is huge, the investment is high, the soil body mechanisms are damaged, and the technologies are only suitable for repairing and treating small-area and heavy-pollution areas and are not suitable for repairing the soil of the cultivated land.
The method has the advantages that normal cultivation of farmers is not affected, the treatment cost is low, the cadmium content in rice is reduced by adjusting the absorption, the transport and the metabolism of the rice to heavy metal cadmium and controlling the accumulation in cadmium plants, agricultural products meeting the national standard are produced, and the method is more easily accepted by the farmers in practical application.
Disclosure of Invention
In view of the above, the invention provides a foliar inhibition and control agent for controlling heavy metal pollution of rice, and a preparation method and a use method thereof, so that the foliar inhibition and control agent is not only beneficial to reducing the heavy metal pollution of brown rice of rice, but also capable of improving the yield of rice, and is suitable for large-area popularization and use in the heavy metal pollution planting area of rice in China.
In order to achieve the purpose, the invention adopts the following technical scheme:
a foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.1-1 part of soluble selenium, 20-30 parts of soluble silicon, 50-80 parts of water-soluble zinc, 80-120 parts of water-soluble potassium, 3-5 parts of chitin, 10-20 parts of tea saponin, 20-30 parts of ascorbic acid, 200-400 parts of deionized water, 5-7 parts of absolute ethyl alcohol and 10-30 parts of surfactant.
Preferably, the foliar prevention and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.5 part of soluble selenium, 25 parts of soluble silicon, 65 parts of water-soluble zinc, 100 parts of water-soluble potassium, 4 parts of chitin, 15 parts of tea saponin, 25 parts of ascorbic acid, 300 parts of deionized water, 6 parts of absolute ethyl alcohol and 20 parts of surfactant.
Preferably, in the foliar prevention and control agent for controlling heavy metal pollution of rice, the soluble selenium is one or two of sodium selenate and sodium selenite.
Preferably, in the above foliage resistance and control agent for controlling heavy metal pollution of rice, the soluble silicon is one or more of potassium silicate, sodium silicate and water-soluble silicon dioxide.
Preferably, in the foliage resistance and control agent for controlling heavy metal pollution of rice, the surfactant is one or more of alkyl polyglycoside, alpha-sulfo fatty acid methyl ester, alcohol ether carboxylate AEC-9Na and castor oil polyoxyethylene ether EL-60.
The invention also discloses a preparation method of the foliage resistance and control agent for controlling heavy metal pollution of rice, which comprises the following steps:
(1) dissolving ascorbic acid in water to form an ascorbic acid solution, dissolving soluble selenium in water to form a soluble selenium solution, and adding the ascorbic acid solution into the soluble selenium solution to obtain a nano selenium solution;
(2) dissolving soluble silicon into water to form a soluble silicon solution, adding absolute ethyl alcohol into the soluble silicon, and then adding a mixed solution of the absolute ethyl alcohol and a surfactant to prepare an inorganic silicon solution;
(3) adding chitosan, water-soluble zinc, water-soluble potassium, chitin and tea saponin into deionized water to prepare a mixed solution A; and sequentially adding the nano selenium solution, the inorganic silicon solution and the mixed solution A into deionized water, heating and stirring, uniformly mixing, and standing to room temperature to obtain the foliage resistance and control agent.
The invention also discloses a use method of the foliage resistance and control agent for controlling the heavy metal pollution of the rice, the foliage resistance and control agent is diluted to prepare a foliage resistance and control agent diluent, and the foliage resistance and control agent diluent is sprayed to crop leaves.
Preferably, in the application method of the foliar resistance and control agent for controlling the heavy metal pollution of the rice, when the foliar resistance and control agent is diluted, the volume ratio of the water amount to the foliar resistance and control agent is (800-1000) to 1.
Preferably, in the application method of the foliage resistance and control agent for controlling the heavy metal pollution of the rice, the total spraying dosage of the foliage resistance and control agent diluent is 800-1000 kg/ha.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the invention effectively avoids the direct treatment of cadmium in the soil, thus reducing the repair difficulty; the inhibitor contains a large amount of water-soluble silicon, and after being absorbed by rice, silicified cells can be formed in the epidermis, stems and vascular tissues of rice leaves, and a negatively charged chelate is formed by the silicified cells and hemicellulose on cell walls to increase the adsorption and the isolation of heavy metal cadmium; in addition, after being absorbed, the silicate ions can form cadmium silicate precipitates which are not easily absorbed by plants with cadmium ions, so that the cadmium ions can be effectively prevented from migrating to seeds; meanwhile, the added silicon can improve the stress resistance of the plants; the added selenium is used as an antioxidant element and an energy metabolism element, so that the quality of agricultural products can be improved;
(2) the invention combines the four major elements of silicon, selenium, zinc and potassium, so that the cadmium reduction effect is more prominent and more stable, and meanwhile, the invention can promote the growth of crops and increase the lodging resistance, insect disease resistance and stress resistance of crops;
(3) the method adopts the method of spraying on the leaf surface, reduces the content of heavy metal cadmium in the rice, and has the characteristics of simple operation, no influence on normal cultivation, wide application range, and more economy and effectiveness.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.1 part of sodium selenate, 30 parts of potassium silicate, 50 parts of water-soluble zinc, 120 parts of water-soluble potassium, 3 parts of chitin, 10 parts of tea saponin, 20 parts of ascorbic acid, 300 parts of deionized water, 5 parts of absolute ethyl alcohol and 2 parts of alpha-sulfo fatty acid methyl ester EL-6012.
Example 2
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 1 part of sodium selenate, 20 parts of sodium silicate, 80 parts of water-soluble zinc, 80 parts of water-soluble potassium, 5 parts of chitin, 20 parts of tea saponin, 30 parts of ascorbic acid, 200 parts of deionized water, 7 parts of absolute ethyl alcohol and 30 parts of castor oil polyoxyethylene ether EL-6030.
Example 3
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.6 part of sodium selenite, 22 parts of water-soluble silicon dioxide, 80 parts of water-soluble zinc, 90 parts of water-soluble potassium, 5 parts of chitin, 15 parts of tea saponin, 28 parts of ascorbic acid, 300 parts of deionized water, 7 parts of absolute ethyl alcohol and 10 parts of alkyl polyglycoside.
Example 4
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.5 part of sodium selenate, 0.5 part of sodium selenite, 25 parts of sodium silicate, 60 parts of water-soluble zinc, 100 parts of water-soluble potassium, 6 parts of chitin, 20 parts of tea saponin, 22 parts of ascorbic acid, 200 parts of deionized water, 7 parts of absolute ethyl alcohol and 25 parts of alpha-sulfo fatty acid methyl ester.
Example 5
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.5 part of sodium selenite, 20 parts of sodium silicate, 70 parts of water-soluble zinc, 110 parts of water-soluble potassium, 5 parts of chitin, 25 parts of tea saponin, 25 parts of ascorbic acid, 250 parts of deionized water, 6 parts of absolute ethyl alcohol and 78 parts of alcohol ether carboxylate AEC-9Na 20.
Example 6
A foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following components in parts by weight: 0.5 part of sodium selenate, 25 parts of water-soluble silicon dioxide, 65 parts of water-soluble zinc, 100 parts of water-soluble potassium, 4 parts of chitin, 15 parts of tea saponin, 25 parts of ascorbic acid, 300 parts of deionized water, 6 parts of absolute ethyl alcohol, 10 parts of alpha-sulfo fatty acid methyl ester and 0 part of castor oil polyoxyethylene ether EL-6010.
Example 7
A preparation method of a foliage resistance and control agent for controlling heavy metal pollution of rice comprises the following steps:
(1) dissolving ascorbic acid in water to form an ascorbic acid solution, dissolving soluble selenium in water to form a soluble selenium solution, and adding the ascorbic acid solution into the soluble selenium solution to obtain a nano selenium solution;
(2) dissolving soluble silicon into water to form a soluble silicon solution, adding absolute ethyl alcohol into the soluble silicon, and then adding a mixed solution of the absolute ethyl alcohol and a surfactant to prepare an inorganic silicon solution;
(3) adding chitosan, water-soluble zinc, water-soluble potassium, chitin and tea saponin into deionized water to prepare a mixed solution A; and sequentially adding the nano selenium solution, the inorganic silicon solution and the mixed solution A into deionized water, heating and stirring, uniformly mixing, and standing to room temperature to obtain the foliage resistance and control agent.
Test examples
Test site: wuhan certain rice planting area
(1) The cadmium content of rice which is not sprayed with the leaf surface resistance control agent in the region is measured to be 0.264mg/kg by adopting a cadmium detection method specified in national standard food for food safety (GB 5009.15-2014), the cadmium content of a soil sample is measured by adopting a heavy metal detection method specified in soil environment quality standard (GB15618-2018), and the maximum detection content is 24.55 mg/kg.
(2) The leaf surface resistance control agent diluent is uniformly sprayed on rice leaves 3 times at the tillering stage, heading stage and the initial stage of strong grain, and 3 treatments are set in the test: treatment 1 (spraying example 1 of 800 times of the diluent 800 kg/ha/time), treatment 2 (spraying example 3 of 900 times of the diluent 900 kg/ha/time), treatment 3 (spraying example 6 of 1000 times of the diluent 1000 kg/ha/time) and spraying time of the foliar resistance control agent is evening of sunny days;
(3) after the rice is ripe, sampling and detecting the rice: the maximum cadmium content of the rice planted after the treatment is 0.006mg/kg for treatment 1, 0.007mg/kg for treatment 2 and 0.005mg/kg for treatment 3, which are all lower than the limit requirement of 0.2mg/kg for the cadmium content of the rice in the food pollutant limit (GB 2762-2017). The leaf surface resistance and control agent can effectively reduce the cadmium content in the rice planted in the cadmium-polluted soil.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The foliage resistance and control agent for controlling heavy metal pollution of rice is characterized by comprising the following components in parts by weight: 0.1-1 part of soluble selenium, 20-30 parts of soluble silicon, 50-80 parts of water-soluble zinc, 80-120 parts of water-soluble potassium, 3-5 parts of chitin, 10-20 parts of tea saponin, 20-30 parts of ascorbic acid, 200-400 parts of deionized water, 5-7 parts of absolute ethyl alcohol and 10-30 parts of surfactant.
2. The foliar prevention and control agent for controlling heavy metal pollution of rice according to claim 1, characterized by comprising, in parts by weight: 0.5 part of soluble selenium, 25 parts of soluble silicon, 65 parts of water-soluble zinc, 100 parts of water-soluble potassium, 4 parts of chitin, 15 parts of tea saponin, 25 parts of ascorbic acid, 300 parts of deionized water, 6 parts of absolute ethyl alcohol and 20 parts of surfactant.
3. The foliar prevention and control agent for controlling heavy metal pollution in rice of claim 1, wherein the soluble selenium is one or both of sodium selenate and sodium selenite.
4. The foliar retarding and controlling agent for controlling heavy metal pollution of paddy rice as claimed in claim 1, wherein the soluble silicon is one or more of potassium silicate, sodium silicate and water-soluble silicon dioxide.
5. The foliar retarding and controlling agent for controlling heavy metal pollution of paddy rice as claimed in claim 1, wherein the surfactant is one or more of alkyl polyglycoside, alpha-sulfo fatty acid methyl ester, alcohol ether carboxylate AEC-9Na and castor oil polyoxyethylene ether EL-60.
6. The method for preparing the foliar drag control agent for controlling heavy metal contamination of rice as claimed in any one of claims 1 to 5, comprising the steps of:
(1) dissolving ascorbic acid in water to form an ascorbic acid solution, dissolving soluble selenium in water to form a soluble selenium solution, and adding the ascorbic acid solution into the soluble selenium solution to obtain a nano selenium solution;
(2) dissolving soluble silicon into water to form a soluble silicon solution, adding absolute ethyl alcohol into the soluble silicon, and then adding a mixed solution of the absolute ethyl alcohol and a surfactant to prepare an inorganic silicon solution;
(3) adding chitosan, water-soluble zinc, water-soluble potassium, chitin and tea saponin into deionized water to prepare a mixed solution A; and sequentially adding the nano selenium solution, the inorganic silicon solution and the mixed solution A into deionized water, heating and stirring, uniformly mixing, and standing to room temperature to obtain the foliage resistance and control agent.
7. The method of using the foliar drag control agent for controlling heavy metal contamination of rice as claimed in any one of claims 1 to 5, wherein the foliar drag control agent is diluted to prepare a foliar drag control agent diluent, and the foliar drag control agent diluent is sprayed to the leaves of the crops.
8. The use method of the foliar resistance and control agent for controlling heavy metal pollution of rice as claimed in claim 7, wherein the volume ratio of the water amount to the foliar resistance and control agent is (800-1000) to 1 when the foliar resistance and control agent is diluted.
9. The use method of the foliar resistance and control agent for controlling heavy metal pollution of rice according to claim 8, wherein the total spraying amount of the foliar resistance and control agent diluent is 800-1000 kg/ha.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114478116A (en) * | 2022-01-24 | 2022-05-13 | 江西普瑞丰生态科技有限公司 | Lodging-resistant selenium-rich foliage resistance and control agent and preparation method thereof |
| CN114956899A (en) * | 2022-07-06 | 2022-08-30 | 江苏省农业科学院 | Foliage blocking agent and application thereof |
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| CN105272632A (en) * | 2015-11-05 | 2016-01-27 | 湖南沛科生态科技有限责任公司 | Foliage resistance and control agent for lowering cadmium pollution to crops and using method |
| CN107897207A (en) * | 2017-06-27 | 2018-04-13 | 湖北农谷畅响土壤修复科技股份有限公司 | A kind of blade face resistance control agent for being used to reduce rice heavy metal cadmium |
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| CN114956899B (en) * | 2022-07-06 | 2023-09-05 | 江苏省农业科学院 | Leaf surface blocking agent and application thereof |
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