Corn field weedicide composition

A herbicide and composition technology, applied in the field of pesticides, can solve the problems of corn phytotoxicity, limited crop safety, and long-lasting effect in the field, so as to alleviate the problem of resistance, and improve the safety and safety of subsequent crops. Effect

Active Publication Date: 2012-11-14
HANGZHOU UDRAGON CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, herbicides in cornfields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using one herbicide alone cannot completely and effectively control the occurrence of weeds in cornfields. Moreover, some herbicides have high water solubility or field persistence. If it is too long and the dosage is too large, it will easily cause phytotoxicity of corn or crop phytotoxicity of corn crops

Method used

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  • Corn field weedicide composition
  • Corn field weedicide composition
  • Corn field weedicide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1: 45% amfentrazone·sperm metolachlor water dispersible granules

[0049]Weigh 30g of amfentrazone original drug, 15g of refined metolachlor original drug, 1g of oxazone, 4g of NNO (alkyl naphthalene sulfonate formaldehyde condensate), 2g of pull open powder BX (dibutyl naphthalene sulfonate Sodium acid), 3g K-12 (sodium lauryl sulfate), 5g carboxymethyl (ethyl) cellulose, 10g white carbon black, 5g glucose, and kaolin to 100g. Mix evenly, after jet crushing, granulate in a granulator, then dry and sieve to obtain granular products.

Embodiment 2

[0050] Example 2: 40% amfentrazone·sperm metolachlor water dispersible granules

[0051] Weigh 30g of amfentrazone technical substance, 10g of refined metolachlor technical substance, 1g of oxadiazone, 4g of NNO (alkyl naphthalene sulfonate formaldehyde condensate), 2g of opening powder BX (dibutyl naphthalene sulfonate Sodium acid), 3g K-12 (sodium lauryl sulfate), 5g carboxymethyl (ethyl) cellulose, 10g diatomaceous earth, 5g glucose, and kaolin to 100g. Mix evenly, after jet crushing, granulate in a granulator, then dry and sieve to obtain granular products.

[0052] (2) Preparation of wettable powder

Embodiment 50

[0053] Embodiment 50% Amenzazone·smart metolachlor wettable powder

[0054] Weigh 30g of the original drug of amfentrazone, 20g of the original drug of metolachlor, 1.5g of chlorhexazone, 6g of NNO, 2g of opening powder BX, 15g of white carbon black, and light calcium to 100g. Mix evenly and pulverize to get the product.

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Abstract

The invention belongs to the pesticide field and relates to corn field weedicide composition. The corn field weedicide composition is corn field weedicide preparation compounded by active ingredients of amicarbazone and s-metolachlor and safener benoxacor. In the composition, the weight ratio of amicarbazone to s-metolachlor is (0.5-6):1, and content of benoxacor is 0.5-2% of the total quantity. The composition disclosed by the invention has synergistic effect, expands weed-controlling spectrum and delays development of resistance, dosage is reduced, and safety is improved.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a cornfield herbicide composition, specifically, amicarbazone and s-metolachlor are used as active ingredients, and amicarbazone is added A herbicide composition for controlling weeds in corn fields compounded as a safener and its application. Background technique [0002] my country is the world's major corn producer, with a planting area of ​​more than 20 million hectares, accounting for about 20% of the grain planting area, ranking third after rice and wheat. 1 / 2 of the country's corn area is also affected by weeds to varying degrees, and the severely damaged area is about 10-20%. If the weeds are pulled out in the field, the corn yield can be reduced by more than 50%. Weeds in cornfields are common and there are many kinds. In order to reduce the economic losses caused by weeds and reduce labor intensity, chemical weeding is also widely accepted by people because of its convenience,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N37/22A01N25/32A01P13/00
Inventor 吴华龙徐黎婷郭利丰
Owner HANGZHOU UDRAGON CHEMICAL CO LTD
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