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Methiopyrisulfuron compound water dispersible granule

A technology of methylthiosulfuron and dispersible granules, applied in the directions of biocides, biocides, animal repellents, etc., can solve problems such as no reports on the development of water dispersible granules, and achieve increased spray coverage and improved effective utilization. rate, the effect of promoting rapid absorption

Inactive Publication Date: 2017-02-01
HEFEI JIUYI AGRI DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the drug effect is stable at low temperature, even at 2°C, it can still guarantee stable drug effect, which is unmatched by other herbicides
[0004] At present, there is no report on the development of water-dispersible granules compounded by the herbicide florasulam and thiosulfuron-methyl

Method used

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  • Methiopyrisulfuron compound water dispersible granule
  • Methiopyrisulfuron compound water dispersible granule
  • Methiopyrisulfuron compound water dispersible granule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] thiosulfuron-methyl 20kg, florasulam 5kg, sodium lauryl sulfate 2kg, sodium lignosulfonate 4kg, silicone surfactant Silwet408 3kg, starch 0.6kg, fumed silica 0.1kg and 65.3kg Light calcium carbonate.

[0023] Preparation:

[0024] Soak, wash, and stir the thiosulfuron-methyl original drug in 0.1wt% sodium bicarbonate solution, filter and dry it for later use; dry the thiosulfuron-methyl original drug, florasulam, and dodecane according to the formula Sodium bisulphate, sodium lignosulfonate, silicone surfactant Silwet408, starch, fumed silicon dioxide and light calcium carbonate are fully mixed, coarsely crushed, remixed, pulverized by a jet mill, and mixed in a conical mixer , through a 300-mesh standard sieve to obtain fine powder, and then add water to the fine powder, knead, extrude and granulate, and dry at 40°C to obtain thiosulfuron-methyl compound water-dispersible granules.

Embodiment 2

[0026] thiosulfuron-methyl 23kg, florasulam 5kg, saponin powder 4kg, calcium lignosulfonate 5kg, silicone surfactant Silwet408 4kg, starch 4.2kg, fumed silica 0.6kg and diatomite 54.2kg .

[0027] Preparation:

[0028] Soak, wash, and stir the thiosulfuron-methyl original drug with 0.3wt% sodium bicarbonate solution, filter and dry it for later use; prepare the dried thiosulfuron-methyl original drug, diflusulam, and saponins powder according to the formula , calcium lignosulfonate, silicone surfactant Silwet408, starch, fumed silica and diatomaceous earth are fully mixed, coarsely pulverized, remixed, pulverized by a jet mill, mixed in a conical mixer, passed through a 325-mesh Standard sieve to obtain fine powder, then add water to the fine powder and knead, extrude and granulate, and dry at 45°C to obtain thiosulfuron-methyl compound water-dispersible granules.

Embodiment 3

[0030] Thisulfuron-methyl 28kg, florasulam 7kg, alkylphenol polyoxyethylene ether 8kg, Morwet-450 7kg, silicone surfactant Silwet408 6kg, starch 4.0kg, fumed silica 0.5kg and 39.5kg ammonium sulfate.

[0031] Preparation:

[0032] Soak, wash, and stir the original drug of thiosulfuron-methyl with 0.5wt% sodium bicarbonate solution, filter and dry it for later use; prepare the original drug of thiosulfuron-methyl, florasulam, and alkylphenol after drying according to the formula Polyoxyethylene ether, Morwet-450, silicone surfactant Silwet408, starch, fumed silicon dioxide and ammonium sulfate are fully mixed, coarsely pulverized, remixed, pulverized by a jet mill, mixed in a conical mixer, passed through 400 Sieve the fine powder according to the target standard, then add water to the fine powder and knead, extrude and granulate, and dry at 55°C to obtain the thiosulfuron-methyl compound water-dispersible granule.

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Abstract

The invention provides a methiopyrisulfuron compound water dispersible granule which comprises, in weight percentage, 20-30% of methiopyrisulfuron, 5-10% of florasulam, 2-10% of wetting agents, 2-8% of dispersing agents, 3-6% of organosilicon surfactants, 0.5-6% of adhesives and the rest fillers. The adhesives are starch and fumed silica mixture, and the methiopyrisulfuron is washed by 0.1-0.5wt% of sodium bicarbonate solution in advance. The water dispersible granule is good in dispersible suspension performance, weed control spectrum is widened, and broadleaf weeds and gramineous weeds in a wheat paddock can be effectively prevented and killed off.

Description

technical field [0001] The invention belongs to the technical field of herbicides, in particular to a thiosulfuron-methyl compounded water-dispersible granule. Background technique [0002] Sulfonylurea herbicides are currently the largest class of herbicides with unique effects in the world. They can be used to control various broad-leaved weeds and some grass weeds in farmland, woodland and non-arable land, and because of their low dosage ( 10~40g·hm -2 ), low toxicity to mammals, and unique herbicidal activity are widely used. The residual length of sulfonylurea herbicides in the soil is mainly determined by the characteristics of the compound itself and product quality, and is also subject to dosage, soil Characteristics (soil pH value, soil type), application period, spray quality, temperature and humidity and other factors. Take a cautious attitude towards the promotion of long-residual herbicides, and adhere to the principle of experimentation, demonstration and pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/90A01N25/04A01N25/30A01P13/00
CPCA01N47/36A01N25/04A01N25/30A01N43/90A01N2300/00
Inventor 沈运河余正莲赵晓俊范富云
Owner HEFEI JIUYI AGRI DEV
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