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Rice direct seeding fields herbicidal compositions

A technology of herbicides and compositions, applied in the direction of herbicides, algicides, biocides, biocides, etc., which can solve the problem of difficulty in using methods, operations, and dosage, high cost of cyhalofop-ethyl, and inability to control weeds and other problems, to achieve the effect of broad development and application prospects and development space, good weeding effect and outstanding social benefits

Inactive Publication Date: 2008-11-26
BEIJING YOLOO BIO TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cyhalofop-ethyl and flubisulfuron-methyl are also relatively deficient, and the herbicidal spectrum is not wide enough. Each herbicide alone will have some weeds that cannot be controlled. The cost of using cyhalofop-ethyl alone is relatively high. When using, it is difficult to grasp the method, operation and dosage, which leads to wrong application of pesticides and affects rice

Method used

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  • Rice direct seeding fields herbicidal compositions
  • Rice direct seeding fields herbicidal compositions
  • Rice direct seeding fields herbicidal compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Put 2kg of flubisulfuron-methyl technical, 2kg of cyhalofop-methyl, 12kg of methanol, 66kg of xylene into the reaction kettle, mix and stir evenly, then add 8kg of phenylethylphenol polyoxyethylene ether, 10kg of dodecyl Calcium benzenesulfonate, mixed and stirred evenly for 2 hours, prepared emulsifiable concentrate preparation.

Embodiment 2

[0030]2kg flubisulfuron-methyl, 5kg cyhalofop-methyl and 6kg sodium dodecylbenzenesulfonate, 10kg sodium lignosulfonate, 2kg polyvinyl alcohol, 2kg lauryl polyoxyethylene ether, 35kg kaolin, 38kg bentonite, Add them together to the cone mixer and mix for more than 2 hours, then put the mixed material into the jet mill for crushing, then add the crushed material into the cone mixer and mix for 2 hours, the fineness of the mixed material reaches 98% passed through a 325-mesh standard sieve to obtain a wettable powder. Then put the wettable powder and 20kg of purified water into the kneader and knead at the same time to make a plastic material, and finally put the material into an extrusion granulator for granulation, and the granulated product is processed in an oven at 54 ° C. Drying, sieving the dried material with standard sieves of 10 mesh and 60 mesh, and taking the material between the two sieves to obtain water-dispersible granules.

Embodiment 3

[0032] 2kg flubisulfuron-methyl, 10kg cyhalofop-methyl and 5kg sodium dodecylbenzenesulfonate, 9kg sodium lignosulfonate, 4kg polyvinyl alcohol, 3kg lauryl polyoxyethylene ether, 35kg kaolin, 32kg bentonite, Add them together to the cone mixer and mix for more than 2 hours, then put the mixed material into the jet mill for crushing, then add the crushed material into the cone mixer and mix for 2 hours, the fineness of the mixed material reaches 98% passed through a 325-mesh standard sieve to obtain a wettable powder. Then put the wettable powder and 20kg of purified water into the kneader and knead at the same time to make a plastic material, and finally put the material into an extrusion granulator for granulation, and the granulated product is processed in an oven at 54 ° C. Drying, sieving the dried material with standard sieves of 10 mesh and 60 mesh, and taking the material between the two sieves to obtain water-dispersible granules.

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Abstract

The invention pertains to the technical field of pesticides and relates to an herbicide composite used in direct-seeding rice fields. The herbicide composite is characterized in that the herbicide composite contains halosulfuron-methyl and cyhalofop-butyl and the effective components of the herbicide composite are as follows according to percentage by weight: 1 percent to 50 percent of the halosulfuron-methyl and 0.1 percent to 60 percent of the cyhalofop-butyl. The herbicide composite can be prepared into missible oil, a water dispersible granule and a wettable powder. The herbicide composite is used for preventing and weeding weeds in the direct-seeding rice fields with obvious weeding effect, is safe for rice and has wide extension in weeding and obvious synergism.

Description

technical field [0001] The invention relates to a herbicide for controlling weeds in rice direct-seeding fields. Background technique [0002] The use of pesticides plays an important role in increasing world food production and improving people's living standards. According to statistics, the world's grain production loses 14% every year due to diseases, insects, and weeds, of which 10% is lost by diseases, and about 11% is caused by weeds. The use of pesticides can restore 15%-30% of crop yield losses. From 1987 to 1992, the results of a study in Korea showed that the yield loss of rice due to no control of weeds was as follows: dry sowing: 70%-100%; water sowing: 40%-60%; mechanical sowing: 30%- 35%; manual insertion: 10%-20%. These data show that due to the widespread application of rice light cultivation techniques and the large loss of rural labor force, chemical control will still be the most effective and irreplaceable important means of controlling diseases, insec...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N39/02
Inventor 蒋勤军王明康孙长贵杨会营闫玉强王晓辉刘晓娇
Owner BEIJING YOLOO BIO TECH CORP
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