CN102246795B - Seed coating agent for preventing and treating cyst nematodes in wheat crops and application thereof - Google Patents
Seed coating agent for preventing and treating cyst nematodes in wheat crops and application thereof Download PDFInfo
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- CN102246795B CN102246795B CN 201110164967 CN201110164967A CN102246795B CN 102246795 B CN102246795 B CN 102246795B CN 201110164967 CN201110164967 CN 201110164967 CN 201110164967 A CN201110164967 A CN 201110164967A CN 102246795 B CN102246795 B CN 102246795B
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Abstract
The invention discloses a seed coating agent for preventing and treating cyst nematodes in wheat crops. The seed coating agent is characterized in that the raw materials contain methane dithiocyanate. The application method of the seed coating agent is characterized by airing and sowing seeds in natural state after coating seeds with the seed coating agent in an agent/seed ratio of 1:40-60 before sowing the seeds of the wheat crops. The seed coating agent has the characteristics of safety for growth of the wheat crops, good adhesive property and long persistent period. The seed coating agent has obvious effect on controlling cyst nematodes in the wheat crops, can effectively reduce the base number of cyst nematodes in the fields and the disease index, improve the persistent period of the agent and increase the yield by 10-20% and has the advantages of safety, high efficiency, low toxicity, labor saving and economy.
Description
Technical field
The present invention relates to a kind of kind clothing agent that prevents and treats wheat crops cyst roundworm disease and preparation method thereof, simultaneously, the invention still further relates to the application method of described kind of clothing agent, belong to the crop protection field.
Background technology
The cyst roundworm disease is the important pathogenic nematode of multiple cereal crop, mainly infect the root of cereal crop, and breeding rapidly, make crop root englobement burrknot, suppress plant growth and influence output, show as the plant jaundice, the minimizing of tillering, undergrowth, ripening rate reduces, general underproduction 20-30%, serious plot can reach more than 70%.At present this disease is in 40 national causing harm such as Australia, Canada, Israel, South Africa, Japan, European multinational, India, north African, Morocco, Tunisia, Libya, Pakistan, Iran, Turkey, Algeria, Saudi Arabia.China from 1987 first after this nematode is found in the wheat strain of the short Huang in Tianmen, Hubei county, in succession in Henan, Beijing, Shaanxi, Qinghai, the Inner Mongol, Hebei, Shaanxi, Anhui, Shandong, 11 provinces in Gansu (city) finds, about 1,000,000 hectares of the wheat crops area of causing harm, production loss is very serious, and China's grain security is constituted potential threat.Control for the wheat crops cyst roundworm mainly is leisure crop rotation, breeding resistant variety, chemical control and biological control both at home and abroad, China is at present still based on chemical control, namely by using the higher granular formulation for killing nematode of toxicity in the soil, time-consuming taking a lot of work not only, and amount of application is big, and environmental pollution is serious.Planting the clothing agent is a kind of formulations of pesticide that combined by agricultural chemicals, film forming agent, filler, relevant auxiliary agent, it is a kind of new seed processing technology, on crops such as wheat crops, corn, cotton, beet, sunflower, plant seeds by airplane herbage, be used widely, remarkable to control soil insect and soil-borne disease effect, and the time and labour saving, to compare pollution relative less with other pesticide application technology.
The active ingredient that the present invention plants in the clothing agent is dithiocyano-methane, have another name called two thiocyanic acid methyl alcohol esters, molecular formula: C3H2N2S2, molecular weight: 130.19, adopted name: Methane dithiocyanate, chemical name: (R)-2-[4-(6-chloro-quinoxaline-2-base oxygen) phenoxy group] ethyl propionate, pure product are for being lurid acicular crystal, moderate toxicity, fusing point 102-104 ℃, be slightly soluble in water, solvability is about 0.4% in the water, easily photodissociation, stable under acid condition, can degrade rapidly during application, can not cause secondary pollution to environment, have good anticorrosion, sterilization, the effect of algae removal.Dithiocyano-methane is of many uses, at the industrial oilfield exploitation that is mainly used in, circulating water treatment, appliance material, bamboo and wood products, coating, rubber, leather, canvas, fields such as ink, be as a kind of efficient on the agricultural, wide spectrum, the organosulfureous fungicide of safety, can kill various bacteria, fungi and nematode, its mechanism of action is that thiocyanogen in the medicament is earlier by the oxydasis one-tenths-S in the pathogenic microorganism body and-CN, these two toxophores are mainly disturbed and are suppressed the respiratory terminal oxidation electron transfer process of pathogenic microorganism, stop normal energy to produce, cause pathogenic microorganism death, and it is many with the site to the cause of disease crop, can solve the resistance problem that present widely used systemic fungicide produces.The easy photodissociation of this medicine should not be used at field spray, at present mainly for the treatment of crop seeds, can kill the pathogenic microorganism of the surface of the seed, shields.The dithiocyano-methane missible oil seed dressing of its preparation has the better prevention effect to bakanae disease of rice and Aplelenchiodes bessegi of rice, stripe disease of barley, net blotch, covered smut, but shortcomings such as the ubiquity safety is not high, medicament degree of adhering to is bad, lasting period weak point.Utilize dithiocyano-methane kind clothing agent control wheat crops cyst roundworm disease to yet there are no report both at home and abroad.
Summary of the invention
Technical problem to be solved by this invention provides the kind clothing agent of a kind of safe, efficient, low toxicity, saving of labor, economic control wheat crops cyst roundworm disease.
Technical scheme provided by the invention is: a kind of kind clothing agent that prevents and treats wheat crops cyst roundworm disease, contain dithiocyano-methane in its raw material.
Preferably, by weight, described dithiocyano-methane accounts for the 0.5-1% of raw material total amount.
Further, by weight, described kind of each raw material of clothing agent and content are as follows:
Dithiocyano-methane 0.5-1%
Growth regulator 0.05-0.1%
Dispersant 2 ~ 7%
Anticaking agent 1 ~ 4%
Suspending agent 1 ~ 6%
Film forming agent 0.1 ~ 3%
Filler 1 ~ 10%
Preservative 1 ~ 3%
Colouring agent 0.5 ~ 5%
Water surplus.
The former medicine of dithiocyano-methane preferred content described in the above-mentioned prescription more than 90%.
Described growth regulator is one or more in gibberellin, ABT5 root-inducing powder, fulvic acid, the oil growth regulator.
Described dispersant is one or more in polyoxyethylene nonylphenol ether, OPEO, phenethyl phenol polyethenoxy ether, fatty alcohol-polyoxyethylene ether, the polyoxyethylene alkylphenol ether.
Described anticaking agent is one or more in sodium silicoaluminate, tricalcium phosphate, the silica.
Described suspending agent is that xanthans, white carbon, polyvinyl alcohol, sodium carboxymethylcellulose, polyethylene pyrrole iron one or more in the alkane ketone.
Described film forming agent is one or more in polyvinyl alcohol, polyvinyl acetate, the modified starch.
Described filler is one or more in kaolin, bentonite, concavo-convex excellent ore deposit clay, diatomite, the talcum powder.
Described preservative is a kind of of technical grade formaldehyde, Sodium Benzoate, potassium sorbate.
Described colouring agent is acid scarlet or Acid Red B.
The kind clothing agent of control wheat crops cyst roundworm disease of the present invention is the occurrence characteristic according to the cyst roundworm disease, selecting dithiocyano-methane targetedly is active component, a kind of water base property wheat crops seed-dressing agent special that adopts corresponding suspension seed-coating agent processing technology to be prepared from is exclusively used in the control of wheat crops cyst roundworm disease.
The present invention also provides the preparation method of described kind of clothing agent, and concrete steps are as follows:
(1) in the high-shear emulsifying dispersion machine, add the former medicine of dithiocyano-methane, dispersant, anticaking agent, film forming agent, filler, preservative, the colouring agent of metering and the water of supplying by proportioning, mix;
(2) above-mentioned mixed liquor homogeneous under the vacuum tightness condition is disperseed;
(3) the at the uniform velocity even amount of above-mentioned mixed liquor is added in the sand mill that has circulating water cooling device grind again, add the aqueous solution that suspending agent is made into then and regulate viscosity, discharging after the mixing and stirring;
(4) weigh packing.
The present invention also provides the application method of described kind of clothing agent, that is: before wheat crops sowing, the present invention planted the clothing agent according to wheat crops seed 1:40-60 pesticide-seeds ratio dressing after, dry sowing under the nature.
Preferably, the pesticide-seeds ratio of kind clothing agent and wheat crops seed is 1:50.
The present invention has following beneficial effect:
The present invention plants in the clothing agent, its active ingredient dithiocyano-methane is the efficient easily pesticide species of degraded, be mainly used in the dressing of wheat crops seed, insecticides adjuvant in the former medicine of dithiocyano-methane and the present invention prescription, film forming agent, auxiliary material, water etc. are through mixing, high cut disperse emulsification, circulation sand milling, obtaining dithiocyano-methane kind clothing agent finished product after regulating viscosity, packing, for seed dressing and seed soaking, the agent of this kind clothing has wheat crops growth safety, tack is good, the lasting period is long characteristics.It is obvious to the control action of wheat crops cyst roundworm disease that the present invention plants the clothing agent, can effectively alleviate field cyst roundworm cardinal sum disease index, improves the medicament lasting period, and volume increase 10-20% has safety, efficient, low toxicity, saving of labor, economic advantage.
Embodiment
Detailed description below by embodiment is further illustrated the present invention, but is not limitation of the present invention, only does the example explanation.
Embodiment 1:
(1) by weight, take by weighing each raw material:
Dithiocyano-methane 0.5%
Growth regulator 0.05%
Dispersant 3%
Anticaking agent 2%
Suspending agent 1.5%
Film forming agent 2%
Filler 10%
Preservative 1%
Colouring agent 3%
Water 76.95%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is gibberellin.Dispersant is polyoxyethylene nonylphenol ether: polyoxyethylene alkylphenol ether=2:5.Anticaking agent is tricalcium phosphate.Suspending agent is xanthans.Film forming agent is polyvinyl alcohol.Filler is bentonite.Preservative is Sodium Benzoate, and colouring agent is acid scarlet.
(2) powder materials such as dithiocyano-methane, growth regulator, filler, colouring agent, anticaking agent are added mix 30min in the homogenizer that water is housed after, add liquid charging stocks such as dispersant, film forming agent, preservative successively, mix 10 ~ 15min again, form the premix slurry.
(3) in the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make the premix slurry more evenly, refinement, then this slurry is pumped in the sand mill by pipeline and separate pump, grind 2 ~ 3 times after discharging.
(4) through sieving, obtain after the packing the flowable suspension liquid of magneta colour, weigh, pack and get product.
Embodiment 2:
By weight, take by weighing each raw material:
Dithiocyano-methane 0.6%
Growth regulator 0.06%
Dispersant 5%
Anticaking agent 3.6%
Suspending agent 2%
Film forming agent 1.5%
Filler 3%
Preservative 1.5%
Colouring agent 0.5%
Water 82.24%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is gibberellin: ABT5 root-inducing powder=5:1.Dispersant is the phenethyl phenol polyethenoxy ether.Anticaking agent is silica, and suspending agent is that xanthans and polyethylene pyrrole iron alkane ketone, and ratio is 4:1.Film forming agent is polyvinyl acetate.Filler is kaolin and concavo-convex excellent ore deposit clay, and ratio is 1:1.Preservative is technical grade formaldehyde, and colouring agent is acid scarlet.
With the method for above-mentioned feedstock production kind clothing agent with embodiment 1.
Embodiment 3:
By weight, take by weighing each raw material:
Dithiocyano-methane 1%
Growth regulator 0.1%
Dispersant 2.4%
Anticaking agent 2%
Suspending agent 1.5%
Film forming agent 2%
Filler 7%
Preservative 1 %
Colouring agent 1%
Water 82%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is the oil growth regulator.Dispersant is polyoxyethylene alkylphenol ether.Anticaking agent is sodium silicoaluminate, and suspending agent is xanthans.Film forming agent is polyvinyl alcohol.Filler is concavo-convex excellent ore deposit clay.Preservative is potassium sorbate, and colouring agent is Acid Red B.
With the method for above-mentioned feedstock production kind clothing agent with embodiment 1.
Embodiment 4:
By weight, take by weighing each raw material:
Dithiocyano-methane 0.7%
Growth regulator 0.08%
Dispersant 6%
Anticaking agent 3%
Suspending agent 3%
Film forming agent 3%
Filler 4%
Preservative 3%
Colouring agent 3%
Water 74.22%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is gibberellin and fulvic acid, and ratio is 2:1.Dispersant is polyoxyethylene nonylphenol ether and fatty alcohol-polyoxyethylene ether, and ratio is 1:1.Anticaking agent is tricalcium phosphate, and suspending agent is white carbon and sodium carboxymethylcellulose, and mass ratio is 1:1.Film forming agent is modified starch.Filler is diatomite and talcum powder, and ratio is 1:2.Preservative is potassium sorbate, and colouring agent is acid scarlet.
With the method for above-mentioned feedstock production kind clothing agent with embodiment 1.
Embodiment 5:
By weight, take by weighing each raw material:
Dithiocyano-methane 0.5%
Growth regulator 0.06%
Dispersant 7%
Anticaking agent 4%
Suspending agent 3.5%
Film forming agent 1%
Filler 2%
Preservative 1%
Colouring agent 5%
Water 75.94%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is gibberellin.Dispersant is polyoxyethylene nonylphenol ether and polyoxyethylene alkylphenol ether, mass ratio 2:1.Anticaking agent is tricalcium phosphate, and suspending agent is xanthans.Film forming agent is polyvinyl acetate.Filler is bentonite.Preservative is formaldehyde, and colouring agent is acid scarlet.
With the method for above-mentioned feedstock production kind clothing agent with embodiment 1.
The finished product that the various embodiments described above make all have the suspensibility height, not stratified, the dressing expulsion rate is low, the lasting period is long, the control efficiency outstanding feature.
Embodiment 6:
By weight, take by weighing each raw material:
Dithiocyano-methane 0.6%
Growth regulator 0.07%
Dispersant 5%
Anticaking agent 4%
Suspending agent 5%
Film forming agent 1.5%
Filler 1.8%
Preservative 1%
Colouring agent 4%
Water 75.94%.
Wherein, dithiocyano-methane is the former medicine of content 90%.Growth regulator is gibberellin and fulvic acid.Dispersant is OPEO and polyoxyethylene alkylphenol ether, mass ratio 2:1.Anticaking agent is sodium silicoaluminate, and suspending agent is xanthans and white carbon, mass ratio 1:2.Film forming agent is polyvinyl alcohol.Filler is bentonite and talcum powder, mass ratio 2:1.Preservative is formaldehyde, and colouring agent is acid scarlet.
With the method for above-mentioned feedstock production kind clothing agent with embodiment 1.
The finished product that above-mentioned 6 embodiment make all have the suspensibility height, not stratified, the dressing expulsion rate is low, the lasting period is long, the control efficiency outstanding feature.
Embodiment 7:
With the kind clothing agent of above-described embodiment 1-6, on wheat, use as follows:
Calculated the sowing quantity of wheat earlier, ratio according to pesticide-seeds ratio 1:50, accurately taking by weighing above-mentioned 6 embodiment plants the clothing agent and slowly pours on the seed, the limit bevelling stirs, packing into then, string is moving up and down in the plastic sack gets final product for several times, with good conditionsily can use seed pelleting machine (specification is seen in concrete operations), after the seed after dressing is good dries in the shade under field conditions (factors), pack, standby.During sowing, get final product according to local conventional seed planting mode, should wear protective articles such as mouth mask, gloves during operation, in time wash one's hands after finishing.
Control efficiency is with sporangiocyst Growth Rate Calculation relative control effect in the soil of sporangiocyst growth rate and contrast in the soil of Cotton seeds, according to pilot survey result such as following table:
Pilot survey is table as a result
| Embodiment | Sporangiocyst growth rate % | Relative control effect % | Output (kg/667m 2） | Rate of growth % |
| 1 | 32.91 | 72.37 | 344.5 | 7.29 |
| 2 | 25.81 | 78.33 | 359.2 | 11.87 |
| 3 | 21.29 | 82.12 | 356.8 | 11.12 |
| 4 | 38.32 | 67.83 | 350.7 | 9.22 |
| 5 | 44.43 | 62.70 | 340.4 | 6.01 |
| 6 | 34.28 | 71.22 | 351.5 | 9.47 |
| Control group | 119.01 | / | 321.1 | / |
Conclusion: the kind clothing agent that above-mentioned 6 embodiment make can reach 62.70%-82.12% to the control efficiency of cyst roundworm disease, and effect of increasing production can reach 6.01%-11.87%, can obviously reduce field cyst roundworm cardinal sum disease index.
Claims (4)
1. kind clothing agent that prevents and treats wheat crops cyst roundworm disease is characterized in that: by weight, described kind of each raw material of clothing agent and content are as follows:
Described growth regulator is one or more in gibberellin, root-inducing powder, fulvic acid, the oil growth regulator;
Described dispersant is one or more in polyoxyethylene nonylphenol ether, OPEO, phenethyl phenol polyethenoxy ether, fatty alcohol-polyoxyethylene ether, the polyoxyethylene alkylphenol ether;
Described anticaking agent is one or more in sodium silicoaluminate, tricalcium phosphate, the silica;
Described suspending agent is that xanthans, white carbon, polyvinyl alcohol, sodium carboxymethylcellulose, polyethylene pyrrole iron one or more in the alkane ketone; Described film forming agent is one or more in polyvinyl alcohol, polyvinyl acetate, the modified starch; Described filler is one or more in kaolin, bentonite, concavo-convex excellent ore deposit clay, diatomite, the talcum powder; Described preservative is a kind of of technical grade formaldehyde, Sodium Benzoate, potassium sorbate; Described colouring agent is acid scarlet or Acid Red B.
2. the preparation method of described kind of clothing agent of a claim 1 is characterized in that this method comprises the steps:
(1) in the high-shear emulsifying dispersion machine, add the former medicine of dithiocyano-methane, dispersant, anticaking agent, film forming agent, filler, preservative, the colouring agent of metering and the water of supplying by proportioning, mix;
(2) above-mentioned mixed liquor homogeneous under the vacuum tightness condition is disperseed;
(3) the at the uniform velocity even amount of above-mentioned mixed liquor is added in the sand mill that has circulating water cooling device grind again, add the aqueous solution that suspending agent is made into then and regulate viscosity, discharging after the mixing and stirring;
(4) weigh packing.
3. the application method of described kind of clothing agent of a claim 1 is characterized in that: before the wheat crops sowing with described kind of clothing agent according to wheat crops seed 1:40-60 pesticide-seeds ratio dressing after, dry sowing under the nature.
4. application method according to claim 3 is characterized in that: the pesticide-seeds ratio of described kind of clothing agent and wheat crops seed is 1:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164967 CN102246795B (en) | 2011-06-20 | 2011-06-20 | Seed coating agent for preventing and treating cyst nematodes in wheat crops and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164967 CN102246795B (en) | 2011-06-20 | 2011-06-20 | Seed coating agent for preventing and treating cyst nematodes in wheat crops and application thereof |
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| CN102246795A CN102246795A (en) | 2011-11-23 |
| CN102246795B true CN102246795B (en) | 2013-08-21 |
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| CN 201110164967 Active CN102246795B (en) | 2011-06-20 | 2011-06-20 | Seed coating agent for preventing and treating cyst nematodes in wheat crops and application thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102934639B (en) * | 2012-11-26 | 2014-02-26 | 海南正业中农高科股份有限公司 | Dithiocyano-methane/organophosphorus pesticide composition |
| CN108293987A (en) * | 2017-01-11 | 2018-07-20 | 北京赛特超润界面科技有限公司 | A kind of composition preventing drop rebound and sputtering on super hydrophobic surface and its application in pesticide |
| CN107258805A (en) * | 2017-06-02 | 2017-10-20 | 甘肃农业大学 | A kind of compound wheat seed coating agent and preparation method thereof |
| CN110140477A (en) * | 2019-06-25 | 2019-08-20 | 吉林大学 | A kind of corn seed processing method |
| CN111567531A (en) * | 2020-06-11 | 2020-08-25 | 甘肃省农业科学院植物保护研究所 | Seed coating agent for spring rape and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561723A (en) * | 2004-03-18 | 2005-01-12 | 南京农业大学 | Novel soil sterilizing preparation and its use |
| CN101573036A (en) * | 2006-11-01 | 2009-11-04 | 巴科曼实验室国际公司 | Microbicidal compositions including a cyanodithiocarbimate and a second microbicide, and methods of using the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561723A (en) * | 2004-03-18 | 2005-01-12 | 南京农业大学 | Novel soil sterilizing preparation and its use |
| CN101573036A (en) * | 2006-11-01 | 2009-11-04 | 巴科曼实验室国际公司 | Microbicidal compositions including a cyanodithiocarbimate and a second microbicide, and methods of using the same |
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