Synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof
A herbicidal composition, a technology of clopyralid acid, applied in the field of pesticides, can solve the problems of inability to completely and effectively control weeds in wheat fields, residual poisoning of crops in the current season or subsequent crops, affecting the use of bensulfuron-methyl, and the like. Improved safety, improved efficacy, and delayed weed resistance effects
Active Publication Date: 2014-03-05
NANJING HUAZHOU PHARMA +1
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Problems solved by technology
However, with the extensive use of bensulfuron-methyl, many weeds have gradually developed resistance to it, seriously affecting the use of bensulfuron-methyl
[0010] At present, herbicides in wheat fields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in wheat fields. Too long effective period, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops
Method used
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Embodiment 1
[0026] Bensulfuron-methyl 1%, diclopyridine acid 19%, alkylphenol polyoxyethylene ether 14%, phenethylphenol polyoxyethylene ether 15%, water to 100%, according to the conventional preparation method to prepare the mass percentage The content is 20% suspending agent.
Embodiment 2
[0028] Bensulfuron-methyl 8%, diclopyridine acid 32%, sodium methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ammonium sulfate 4%, lignin Sodium sulfonate to 100%, formulated into a soluble powder with a mass percentage of 40% according to a conventional preparation method.
Embodiment 3
[0030] Bensulfuron-methyl 10%, diclopyralic acid 70%, NNO (sodium methylene ditetrahydrosulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, prepared according to conventional preparation methods A water-dispersible granule with a mass percentage of 80%.
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The invention discloses a synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof. The main active ingredients of the herbicidal composition are the clopyralid and the bensulfuron-methyl in a mass ratio of 1-70:1-60. The synergistic herbicidal composition can be used for controlling post-emergence weeds in a wheat field, and particularly has an obvious effect of controlling various broadleaf weeds in the wheat field. Compared with a single-component herbicide, the herbicidal composition delays resistance of weeds, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat and afterculture crops.
Description
Technical field [0001] The invention belongs to the technical field of pesticides, especially the field of herbicides, and relates to a binary compound agent of clopyralid and bensulfuron-methyl. The herbicide composition can be used for stem and leaf weeding in wheat fields. Background technique [0002] Wheat is my country's main food crop. It is reported that wheat across the country suffers from weed damage to varying degrees every year. If weeding is not carried out in the fields, the yield can be reduced by more than 50%. In order to reduce the economic losses caused by weed damage and reduce labor intensity, chemical weeding has gradually been accepted by people because of its convenience, quick effect, and long control time. [0003] In recent years, with the increase in herbicide varieties and the widespread promotion of chemical control technology in agricultural production, chemical weeding has been widely used in various stages of wheat growth. Due to different...
Claims
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IPC IPC(8): A01N47/36A01N43/40A01P13/00
Inventor 杨寿海郭崇友夏小宝杨帆包凌云
Owner NANJING HUAZHOU PHARMA