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Pendimethalin and alachlor binary complex herbicide and preparation method thereof

A technology of pendimethalin and alachlor, which is applied in the direction of herbicides and algicides, botany equipment and methods, chemicals for biological control, etc., and can solve the problem of not being able to achieve grass-free crops in the whole growth period of one-time medication. Harm and other issues, to achieve the effect of crop safety

Inactive Publication Date: 2011-02-16
HUBEI AOSHITEAO LIFE SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this new type of chemicals called sulfone compounds (S), which were discovered by researchers at Cornell University's School of Agriculture near New York City when they tested them against certain plants found similar properties but without being effective or causing any negative side effect). These S compound have been shown to be very useful because they work well with various crop species including corn, rice, wheat, barley, rye, sorghum, sugarcane, sunflower seeds, peanuts, citrus fruits, vegetables like spinaches, melons, watermelon, grapevines, tea leaves, etc., resulting in reduced use over time while also controlling unwanted plant populations such as grasses and insects.

Problems solved by technology

The technical problem addressed by this patented technology relates how to control unwanted vegetation during crop production without damaging it throughout its entire life cycle or even causing harmful effects on other plants nearby when used alone for some time after plant emergency occurs (such as drought).

Method used

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  • Pendimethalin and alachlor binary complex herbicide and preparation method thereof
  • Pendimethalin and alachlor binary complex herbicide and preparation method thereof
  • Pendimethalin and alachlor binary complex herbicide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 15 grams of pendimethalin, add 10 milliliters of ethanol, stir and dissolve; add 25 grams of alachlor, add 10 milliliters of ethanol, stir and dissolve; mix the two solutions, add 5 grams of tea saponin-containing pesticide synergist (Silwet) 625 , 10 grams of emulsifier castor oil polyoxyethylene ether 0206B, stirred for 15 minutes, added the remaining amount of ethanol to make a total mass of 100 grams, stirred for 20 minutes, stood still, filtered, and obtained the binary compound of pendimethalin and alachlor. formulated herbicides.

Embodiment 2

[0035] Take 20 grams of pendimethalin and add 20 milliliters of ethanol, stir to dissolve; add 10 grams of alachlor to 20 milliliters of ethanol, stir and dissolve; mix the two solutions, add 8.5 grams of tea saponin-containing pesticide synergist (Silwet) 625 , 10.5 grams of emulsifier castor oil polyoxyethylene ether 0206B, stirred for 15 minutes, added the remaining amount of ethanol to make a total mass of 100 grams, stirred for 25 minutes, stood still, filtered, and obtained the binary compound of pendimethalin and alachlor. formulated herbicides.

Embodiment 3

[0037] Take 25 grams of pendimethalin, add 20 milliliters of ethanol, stir and dissolve; add 8 grams of alachlor, add 20 milliliters of ethanol, stir and dissolve; mix the two solutions, add 15 grams of tea saponin-containing pesticide synergist (Silwet) 625 , 8 grams of emulsifier castor oil polyoxyethylene ether 0206B, stirred for 15 minutes, added the remaining amount of ethanol to make a total mass of 100 grams, stirred for 30 minutes, stood still, filtered, and obtained the binary compound of pendimethalin and alachlor formulated herbicides.

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PUM

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Abstract

The invention provides a pendimethalin and alachlor binary complex herbicide and a preparation method thereof. The herbicide comprises the following components by mass: 15-45% of pendimethalin, 5-25% of alachlor, 5-15% of synergist, 8-20% of emulsifier and the balance solvent. The preparation method comprises the following steps: mixing and stirring the pendimethalin and the solvent according to the mass ratio; mixing and stirring the alachlor and the solvent; mixing and stirring the mixtures; adding the emulsifier together with the synergist to a reaction kettle to be stirred for 10-15min; then adding the balance solvent and stirring the mixture for 20-30min; and then carrying out standing, filtering, filling and sampling analysis, thus obtaining the finished product. The herbicide has high efficiency and broad spectrum, is used for pre-emergence soil spraying after sowing such crops as soy beans, peanuts, garlic, cotton and the like, can realize that the crops are free from weeds in the whole growth period through one-time application of 120-180g per mu and has application cost 31.4-36.8% lower than that of the single pendimethalin or alachlor respectively.

Description

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Claims

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Application Information

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Owner HUBEI AOSHITEAO LIFE SCI CO LTD
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