Herbicide prepared by compounding oxyfluorfen and alachlor and preparation method thereof
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A technology of oxyfluorfen and alachlor, which is applied in the direction of herbicides and algicides, botany equipment and methods, chemicals for biological control, etc., can solve the problem that the crops that cannot be used once in the whole growth period have no Weed damage and other problems, to achieve the effect of controlling the damage of weed communities
Inactive Publication Date: 2010-12-01
HUBEI AOSHITEAO LIFE SCI CO LTD
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[0003] The purpose of the present invention is to solve the problem that the above-mentioned herbicides cannot reach the problem of no weed damage in the whole growth period of the once-medicated crops, and to provide a herbicide compounded by oxyfluorfen and alachlor and its preparation method. Abbreviated as "Baishechu·Sirius No. 8" and its preparation method
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Embodiment 1
[0033] Take 3 grams of oxyfluorfen, add 5 ml of ethanol (or acetone), stir and dissolve; add 30 grams of alachlor, add 35 ml of ethanol (or acetone), stir and dissolve; mix the two solutions, add 8 grams of tea saponin Pesticide synergist (Silwet) 625, 10 grams of emulsifier castor oil polyoxyethylene ether 2201, stirred for 15 minutes, added the remaining amount of ethanol (or acetone) to make a total mass of 100 grams, stirred for 20 minutes, left standstill, filtered , to obtain the herbicide made of binary compound of oxyfluorfen and alachlor.
Embodiment 2
[0035] Take 4 grams of oxyfluorfen, add 6 ml of ethanol (or acetone), stir and dissolve; add 25 grams of alachlor, add 30 ml of ethanol (or acetone), stir and dissolve; mix the two solutions, add 7.5 grams of tea saponin Pesticide synergist (Silwet) 625, 10.5 grams of emulsifier castor oil polyoxyethylene ether 2201, stirred for 15 minutes, added the remaining amount of ethanol (or acetone) to make a total mass of 100 grams, stirred for 25 minutes, left standstill, filtered , to obtain the herbicide made of binary compound of oxyfluorfen and alachlor.
Embodiment 3
[0037] Take 4.5 grams of oxyfluorfen, add 6 ml of ethanol (or acetone), stir and dissolve; add 24.5 grams of alachlor, add 30 ml of ethanol (or acetone), stir and dissolve; mix the two solutions, add 8 grams of tea saponin Pesticide synergist (Silwet) 625, 8 grams of emulsifier castor oil polyoxyethylene ether 2201, stirred for 15 minutes, added the remaining amount of ethanol (or acetone) to make a total mass of 100 grams, stirred for 30 minutes, left standstill, filtered , to obtain the herbicide made of binary compound of oxyfluorfen and alachlor.
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Abstract
The invention relates to a herbicide prepared by compounding oxyfluorfen and alachlor and a preparation method thereof. The herbicide comprises the following components in percentage by mass: 3 to 10 percent of oxyfluorfen, 10 to 30 percent of alachlor, 5 to 15 percent of synergistic agent, 8 to 20 percent of emulsifying agent and the balance of solvent. The preparation method comprises the following steps of: mixing the oxyfluorfen and the solvent with stirring according to the mass ratio; mixing the alachlor and the solvent with stirring; mixing a mixture of the oxyfluorfen and the solvent and a mixture of the alachlor and the solvent with stirring; adding the emulsifying agent and the synergistic agent into a reaction kettle together and stirring for 10 to 15 minutes; adding the remaining solvent into the reaction kettle and stirring for 20 to 30 minutes; and then standing, filtering, filling, sampling and analyzing to obtain a finished product. The herbicide is an efficient broad-spectrum herbicide and is applied in a period of 4 to 6 leaves of weeds grown among soybeans, peanuts, corns, vegetables and other crops; one-time herbicide application in the dosage of 55 to 65 g / mu can fully ensure no weeds in an entire growth period of the crops; and the cost of the herbicide application is 25.5 to 34.8 percent lower than that of single application of the oxyfluorfen and the alachlor.
Description
technical field [0001] The invention relates to a herbicide and a preparation method thereof, in particular to a herbicide obtained by binary compounding of a diphenyl ether oxyfluorfen and an amide herbicide alachlor and a preparation method thereof. Background technique [0002] Oxyflufen is a contact herbicide that works in the presence of light. Pre-emergence and early post-emergence applications work best. Alachlor is an amide herbicide, which is effective in controlling annual weeds in dryland crops. However, the single application of the two kinds of single doses cannot achieve no weed damage in the whole growth period of crops. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the above-mentioned herbicides cannot reach the problem of no weed damage in the whole growth period of the once-medicated crops, and to provide a herbicide compounded by oxyfluorfen and alachlor and its preparation method. It is referred ...
Claims
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Application Information
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