Wettable powder formed by compounding pyrazosulfuron-ethyl and quinclorac and preparing method of wettable powder

Abstract

The invention discloses a wettable powder formed by compounding pyrazosulfuron-ethyl and quinclorac. The wettable powder is prepared from, by mass, 47% of the quinclorac, 3% of the pyrazosulfuron-ethyl, 5% of an auxiliary agent, 5% of a wetting dispersing agent, 3% of an alkaline modifier, 5% of white carbon black and the balance fillers. The invention further discloses a preparing method of the wettable powder formed by compounding the pyrazosulfuron-ethyl and the quinclorac. The preparing method comprises the following steps of uniform mixing, air jet pulverization and the like. The preparedwettable powder formed by compounding the pyrazosulfuron-ethyl and the quinclorac has the advantages that the product suspension percentage is high, effective components are stable, and bulging doesnot occur; moreover, the preparing method is simpler, has a low requirement for equipment and has a great popularization effect.

Description

technical field [0001] The invention relates to the technical field of wettable powders, in particular to a wettable powder compounded with pyrazosulfuron-methyl and quinclorac and a preparation method thereof. Background technique [0002] Quinclorac is a special selective herbicide for controlling barnyardgrass in rice fields. It has a better effect on barnyardgrass at the 4-7 leaf stage, has strong selectivity, and can control barnyardgrass throughout the growth period of rice. [0003] Pyrazosulfuron-methyl is a sulfonylurea selective herbicide for paddy fields. The active ingredient can diffuse rapidly in water, be absorbed by the roots of weeds and then be transferred to the plants, hindering the synthesis of amino acids and rapidly inhibiting the stems and leaves of weeds. Pyrazosulfuron-methyl is safe for rice, has a wide herbicidal spectrum and long-lasting efficacy, and can effectively control barnyardgrass and some broad-leaved weeds and sedges in transplanted ric...

AI Technical Summary

Problems solved by technology

my country has produced wettable powder pesticides for decades, but the low suspension rate of wettable powder pesticides, decomposition, flatulence and other problems have plagued the majority of pesticide manufacturers. Most manufacturers often have poor stability and efficacy due to the above problems. Not good, the original medicine and additives are wasted, and the cost of farmers’ use is increased

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