CN103355291A - Novel efficient method for improving adhesive capability of pesticide - Google Patents
Novel efficient method for improving adhesive capability of pesticide Download PDFInfo
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- CN103355291A CN103355291A CN201310171022XA CN201310171022A CN103355291A CN 103355291 A CN103355291 A CN 103355291A CN 201310171022X A CN201310171022X A CN 201310171022XA CN 201310171022 A CN201310171022 A CN 201310171022A CN 103355291 A CN103355291 A CN 103355291A
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Abstract
The invention discloses an efficient and low-cost method for controlling loss of a pesticide, that is, compound ingredients such as irradiating modified natural nanomaterials are added to the pesticide according to a certain ratio. By adopting the method, the capability of the pesticide in resisting a rain shower can be effectively enhanced; the adhesive capability of the pesticide on leaves and soil surface is improved; volatilization and leaching loss of the pesticide are reduced; a pesticide effect is prolonged; the application frequency is reduced; the dosage is also reduced. The method is unique in mechanism, abundant in materials, low in cost, friendly to environment, simple in process, effort-saving and labor-saving, easy to receive by peasants, and has a large market prospect; both production and income are increased.
Description
Technical field
The present invention relates to agriculture field, be specifically related to a kind of novel, efficiently improve the method for agricultural chemicals adhesive ability.
Background technology
Agricultural chemicals is that agricultural is protected the assurance of producing good harvest.The whole world is owing to the crop harvesting amount that disease, worm, grass, the plague of rats lose is equivalent to 1/3rd of potential gain, if in case discontinue medication or serious inappropriate medication, harvest 25-40% will be reduced after 1 year, 40-60% will be reduced after 2 years so that total crop failure.China because agricultural chemicals is retrieved 2,500 ten thousand tons in grain, 400,000 tons in cotton, 8,000,000 tons of vegetables, 3,300,000 tons of fruits, reduces about 30,000,000,000 yuan of economic loss every year on average.Traditional application method because of wind, Exposure to Sunlight, the agricultural chemicals that causes of drenching with rain runs off and decompose and usually reach 40%-80%, cause the active ingredient rate of release fast, the problems such as the drug effect efficiency time is short, therefore repeatedly spray, dosage is doubled and redoubled, cause ecosystem balance destroyed, soil environment and water body environment pollution are day by day serious, but also can cause the pesticide resistance of damage by disease and insect.Therefore, be conceived to the improvement of existing pesticide species processing formulation and prescription, the improvement of physical and chemical performance, the development of efficient, low toxicity, less-persistent pesticide, the improvement of using method etc. become modern agricultural production and are badly in need of the major issue that solves.In all multi-methods, pesticide slow-release and the technology of opening up present flourish gesture, become two main developing direction of modern.
Slow release method is intended to according to damage by disease and insect pests occurrence rule, characteristics and environmental condition, agricultural chemicals is made with necessary dosage, within the specific time, arrived sustainedly and stably and need the place, to keep enough lasting periods, can be economical, safety, disease and pest control reasonably effectively, again agricultural chemicals is down to bottom line to the pollution of environment.Pesticide slow-releasing agent mainly is divided into physical and chemical type two large classes at present, and the former mainly relies on the physical bond between macromolecular compound and former medicine to form, and comprises microcapsules body, equal one, inclusion compounds and adsorptivity goods etc.; The latter is combined into by chemical reaction between former medicine and the macromolecular compound, comprises the directly various ways such as combination, crosslinked combination and complexing of former medicine and macromolecule.Wherein the development with the physical sustained release agent is particularly rapid.Although existing pesticide slow-release technology has obtained success in various degree, also exists problem more or less, not high such as slowly-releasing efficient, cause secondary pollution etc., and mostly more high-leveled and difficult with large-scale promotion application because of complex process, cost.Because China's slow release method is also relatively backward at present, slow-release material preparation technology is still immature, also be difficult to control farm chemical release speed accurate, science, the influence factor of adding the damage by disease and insect generation is a lot, its rule is comparatively complicated, so rate of release and damage by disease and insect pests occurrence rule be difficult to coupling, causes easily worm without medicine or medicine is arranged without the result of worm, so not only cause loss and the waste of agricultural chemicals, can't reach desirable control efficiency.The more important thing is that slow release method is not anti-rainwater shower usually, drug ingedient runs off with rainwater easily, causes drug effect reduction in rainy season.
It is main spreader-sticker by adding azone generally that agricultural chemicals is being opened up technology, strengthens spreading rate and the seepage velocity of agricultural chemicals on the blade face, runs off to reduce agricultural chemicals.Although this technology has been alleviated agricultural chemicals loss situation to a certain extent, because anti-rainwater shower is indifferent, still do not prove effective in rainy season.
Therefore, need invention to be applicable to novel agrochemical attachment techniques rainy season, that improve agricultural chemicals anti-impact pouring ability, namely novel agrochemical adheres to auxiliary agent.One of Nanjing Normal University studies show that the degree of roughness on leaf surface and its regulation of absorbing dust capability are positively related.We are inspired by this, have invented a kind of method that agricultural chemicals runs off of controlling, and mainly by adhering to auxiliary agent pesticide molecule are attached on plant leaf surface and the soil surface, strengthen anti-rainwater shower ability, reduce the agricultural chemicals mobility, reduce and run off.Because present technique meets national industrial policies and developing direction, have the advantages such as high efficiency, low cost, technique are simple, be relevant enterprise and peasant acceptance easily, be easy to large scale application, have larger market prospects and competitiveness.
Summary of the invention
In order to alleviate shortcomings and deficiencies of the prior art, the invention provides a kind of novel, efficiently improve the method for agricultural chemicals adhesive ability.
The present invention adopts following technical scheme:
A kind of novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that may further comprise the steps:
(1) carry out composite according to the 1-3:2-5 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are the 200-300 order, the energy of high-power electron beam is that 1-10 MeV, dosage are 5-40 kGy, the high speed shear rotating speed is that 15000-24000 RPM, time are 1-10 min, makes auxiliary agent 1;
(2) mass ratio according to 10-50% evenly adds auxiliary agent 1 in the liquid pesticidal, makes suspending agent, or directly adds in the agricultural chemicals dilution;
Described novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: attapulgite, diatomite adopt other clay in the described auxiliary agent 1, substitute such as bentonite, sepiolite, kaolin, imvite etc.
Described novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: described agricultural chemicals comprises insecticide, bactericide, nematocide, weed killer herbicide and plant growth regulator.
A kind of novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that may further comprise the steps:
(1) carry out composite according to the 1-3:2-5 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are the 200-300 order, the energy of high-power electron beam is that 1-10 MeV, dosage are 5-40 kGy, the high speed shear rotating speed is that 15000-24000 RPM, time are 1-10 min, makes auxiliary agent 1;
(2) the above-mentioned auxiliary agent that makes 1 and sodium alginate, polyacrylamide and shitosan is composite evenly according to the mass ratio of 30-80:1-3:1-3:1-3, make auxiliary agent 2;
(2) mass ratio according to 10-50% evenly adds auxiliary agent 2 in the powder agricultural chemicals, makes pesticide powder, or by disk, wave or extruder grain obtains granular pesticide.
Described sodium alginate, polyacrylamide and shitosan adopt other organic polymers with similarity such as starch, polyethylene glycol, polyacrylic acid etc. to substitute.
Described agricultural chemicals comprises insecticide, bactericide, nematocide, weed killer herbicide and plant growth regulator.
Principle of the present invention is:
Attapulgite is made of nano stick crystal, and rod is brilliant under the nature reunites easily, dispersed relatively poor, has limited its specific surface area and performance.Change has occured in rod grained aggregate structure under the effect of fuel factor, charge effect and the shock effect of high-power electron beam, and the reunion degree reduces between the excellent crystalline substance, and dispersity improves, and specific surface area is improved.Formed by many nano pores because rod is brilliant, be " honeycomb " structure, and therefore excellent brilliant length, only have excellent brilliant two ends could be come out in the duct at the 1-2 micron.Rod is brilliant under the high speed shear effect, an excellent crystalline substance can be cut into many segments, so just can be come out in more duct, thereby further increase specific surface area and the duct effect of attapulgite.
Diatomite is comprised of plate-like, bar-shaped and chain diatomite unit, is distributed with many micro-nano apertures on it, but many apertures are stopped up by impurity, have limited its specific surface area and pore canal role.High-power electron beam can loosen impurity in the duct or the sputter removal, and then under the centrifugal action of high speed shear, impurity be thrown away, thereby with the duct dredging, promote its specific surface area and duct effect by fuel factor and shock effect.
Diatomaceous micro-nano orifice throat ratio rod geode road is large, suitable pesticide molecule enters, the rod crystalline substance then can be distributed in doorway, diatomite duct, the retardance pesticide molecule moves out, thereby farm chemical ingredients can be maintained, because diatomite and rod crystalline substance are fixed by coarse blade face and soil surface easily, be not easy to be fallen by rain-out simultaneously, thereby strengthen the pesticide molecule adhesive ability.In addition, because attapulgite and diatomite is under the processing of high-power electron beam and high speed shear, size decreases, bulk density reduces, thereby improved the suspension in liquid, therefore being suitable for adding to liquid pesticidal makes agricultural chemicals suspension agent, or directly adds in the dilution.
For solid pesticide (pulvis and granule), need not too much to consider the suspension of auxiliary agent, therefore in order further to strengthen attapulgite and diatomite to the hold facility of agricultural chemicals, we are composite again sodium alginate, polyacrylamide and shitosan, by the macromolecule bridging action, brilliant and diatomite couples together with rod, self assembly forms the micro-nano network, thereby amplified the size of pesticide molecule, be conducive to reduce the mobility of agricultural chemicals, improved its adhesive ability.
Beneficial effect of the present invention:
1, under equal drug effect, the present invention can improve adhesion amount 40-60%, reduces loss 15-30%, prolongs effective drug duration 2-6 doubly, reduces consumption 20-40%, reduces dispenser frequency 50-70%.
2, the present invention can the Effective Raise agricultural chemicals at the adhesive ability of blade face and soil surface, strengthen anti-rainwater shower ability, it is applicable to make agricultural chemicals be suitable for rainy season, reduces agricultural chemicals to the pollution of water body and soil.
3, the present invention can form " Pesticide Database " at blade face and soil surface, supports by " with need with getting ", and is continual and steady, can not form the situation of " worm being arranged without medicine ".
4, mechanism uniqueness of the present invention, abundant raw material, with low cost, environmental friendliness, technique simple, save labor, increasing both production and income, be easy to have larger market prospects into the peasant receives.
5, present technique is used for weed killer herbicide, subtracting in medicine 15% situation, can improve weeding rate 30-60%.
Embodiment:
Embodiment 1: carry out composite according to the 1:2 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are 200 orders, the energy of high-power electron beam is that 10 MeV, dosage are 20 kGy, the high speed shear rotating speed is that 24000 RPM, time are 3 min, make auxiliary agent 1, then according to 20% mass ratio auxiliary agent 1 is evenly added in the liquid pesticidal (chlorpyrifos ec), make suspending agent, or directly add in the agricultural chemicals dilution;
Embodiment 2: carry out composite according to the 1:3 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are 300 orders, the energy of high-power electron beam is that 10 MeV, dosage are 30 kGy, the high speed shear rotating speed is that 24000 RPM, time are 10 min, then with composite evenly according to the mass ratio of 50:1:1:1 with sodium alginate, polyacrylamide and shitosan, makes auxiliary agent; Mass ratio according to 30% evenly adds in the chlopyrifos powder agricultural chemicals, makes pesticide powder, or by disk, wave or extruder grain obtains granular pesticide.
Claims (6)
- One kind novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that may further comprise the steps:(1) carry out composite according to the 1-3:2-5 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are the 200-300 order, the energy of high-power electron beam is that 1-10MeV, dosage are 5-40kGy, the high speed shear rotating speed is that 15000-24000RPM, time are 1-10min, makes auxiliary agent 1;(2) mass ratio according to 10-50% evenly adds auxiliary agent 1 in the liquid pesticidal, makes suspending agent, or directly adds in the agricultural chemicals dilution.
- According to claim 1 novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: attapulgite, diatomite adopt other clay in the described auxiliary agent 1, substitute such as bentonite, sepiolite, kaolin, imvite etc.
- According to claim 1 novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: described agricultural chemicals comprises insecticide, bactericide, nematocide, weed killer herbicide and plant growth regulator.
- One kind novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that may further comprise the steps:(1) carry out composite according to the 1-3:2-5 mass ratio colloid attapulgite, diatomite, then utilize high-energy electron beam irradiation, process through high speed shear again, wherein attapulgite, diatomaceous particle diameter are the 200-300 order, the energy of high-power electron beam is that 1-10MeV, dosage are 5-40kGy, the high speed shear rotating speed is that 15000-24000RPM, time are 1-10min, makes auxiliary agent 1;(2) the above-mentioned auxiliary agent that makes 1 and sodium alginate, polyacrylamide and shitosan is composite evenly according to the mass ratio of 30-80: 1-3: 1-3: 1-3, make auxiliary agent 2;(3) mass ratio according to 10-50% evenly adds auxiliary agent 2 in the powder agricultural chemicals, makes pesticide powder, or by disk, wave or extruder grain obtains granular pesticide.
- According to claim 4 novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: described sodium alginate, polyacrylamide and shitosan adopt other organic polymers with similarity such as starch, polyethylene glycol, polyacrylic acid etc. to substitute.
- According to claim 4 novel, efficiently improve the method for agricultural chemicals adhesive ability, it is characterized in that: described agricultural chemicals comprises insecticide, bactericide, nematocide, weed killer herbicide and plant growth regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310171022XA CN103355291A (en) | 2013-05-10 | 2013-05-10 | Novel efficient method for improving adhesive capability of pesticide |
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| CN201310171022XA CN103355291A (en) | 2013-05-10 | 2013-05-10 | Novel efficient method for improving adhesive capability of pesticide |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165825A (en) * | 2015-09-21 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Coating agent reinforcing agent and preparation method and application thereof |
| CN106538590A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院微生物研究所 | A kind of seed dressing synergist and preparation method and application |
| CN106614554A (en) * | 2016-12-11 | 2017-05-10 | 汪逸凡 | Preparation method of stable pesticide suspension adjuvant |
| CN108157361A (en) * | 2017-12-19 | 2018-06-15 | 翟琳 | A kind of preparation method of ward disinfectant |
| CN110506737A (en) * | 2019-09-20 | 2019-11-29 | 中国科学院合肥物质科学研究院 | A kind of preparation method of agricultural chemicals suspension agent and agricultural chemicals suspension agent obtained |
| CN111165486A (en) * | 2020-02-14 | 2020-05-19 | 东华大学 | Magnetic pesticide loss control agent, preparation method and application |
| CN113372142A (en) * | 2021-05-31 | 2021-09-10 | 中国科学院合肥物质科学研究院 | Preparation method of silicon-based ferrous fertilizer with high leaf surface adhesion and controllable release and prepared ferrous fertilizer |
| CN113875773A (en) * | 2021-10-20 | 2022-01-04 | 中国科学院合肥物质科学研究院 | Nanometer preparation for preventing and controlling wheat powdery mildew and preparation method thereof |
| CN115636495A (en) * | 2022-10-13 | 2023-01-24 | 淮阴工学院 | Preparation method of irradiation modified bentonite loaded vulcanized nano zero-valent iron |
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| CN101519209A (en) * | 2009-03-30 | 2009-09-02 | 中国科学院等离子体物理研究所 | Method for constructing attapulgite nanometer network by utilizing ion beam |
| CN102578082A (en) * | 2012-01-12 | 2012-07-18 | 中国科学院合肥物质科学研究院 | Method for controlling loss of pesticide at high efficiency and low cost |
| CN103084152A (en) * | 2012-12-20 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Treatment method for effectively improving microstructures and absorption properties of attapulgite and kieselguhr |
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- 2013-05-10 CN CN201310171022XA patent/CN103355291A/en active Pending
Patent Citations (3)
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| CN101519209A (en) * | 2009-03-30 | 2009-09-02 | 中国科学院等离子体物理研究所 | Method for constructing attapulgite nanometer network by utilizing ion beam |
| CN102578082A (en) * | 2012-01-12 | 2012-07-18 | 中国科学院合肥物质科学研究院 | Method for controlling loss of pesticide at high efficiency and low cost |
| CN103084152A (en) * | 2012-12-20 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Treatment method for effectively improving microstructures and absorption properties of attapulgite and kieselguhr |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165825A (en) * | 2015-09-21 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Coating agent reinforcing agent and preparation method and application thereof |
| CN106538590A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院微生物研究所 | A kind of seed dressing synergist and preparation method and application |
| CN106614554A (en) * | 2016-12-11 | 2017-05-10 | 汪逸凡 | Preparation method of stable pesticide suspension adjuvant |
| CN108157361A (en) * | 2017-12-19 | 2018-06-15 | 翟琳 | A kind of preparation method of ward disinfectant |
| CN110506737A (en) * | 2019-09-20 | 2019-11-29 | 中国科学院合肥物质科学研究院 | A kind of preparation method of agricultural chemicals suspension agent and agricultural chemicals suspension agent obtained |
| CN110506737B (en) * | 2019-09-20 | 2021-08-13 | 中国科学院合肥物质科学研究院 | Preparation method of pesticide suspending agent and prepared pesticide suspending agent |
| CN111165486A (en) * | 2020-02-14 | 2020-05-19 | 东华大学 | Magnetic pesticide loss control agent, preparation method and application |
| CN113372142A (en) * | 2021-05-31 | 2021-09-10 | 中国科学院合肥物质科学研究院 | Preparation method of silicon-based ferrous fertilizer with high leaf surface adhesion and controllable release and prepared ferrous fertilizer |
| CN113875773A (en) * | 2021-10-20 | 2022-01-04 | 中国科学院合肥物质科学研究院 | Nanometer preparation for preventing and controlling wheat powdery mildew and preparation method thereof |
| CN115636495A (en) * | 2022-10-13 | 2023-01-24 | 淮阴工学院 | Preparation method of irradiation modified bentonite loaded vulcanized nano zero-valent iron |
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Application publication date: 20131023 |