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A compound synergistic herbicide for controlling weeds in cornfields

A compound synergistic and herbicide technology, applied in the direction of herbicides and algicides, chemicals for biological control, applications, etc., can solve the problems of large residues, unsatisfactory effects, and high prices

Active Publication Date: 2011-12-14
大连松辽化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of single herbicide performance, unsatisfactory effect, high price and relatively large residue in the current chemical control of weeds in cornfields in my country, and develop a new compound herbicide for cornfields

Method used

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  • A compound synergistic herbicide for controlling weeds in cornfields
  • A compound synergistic herbicide for controlling weeds in cornfields
  • A compound synergistic herbicide for controlling weeds in cornfields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Composition and preparation method of 40% Nitrosulcotrione·2,4-D acid aqueous suspension (1:1)

[0097] Nitrosulcotrione (active ingredient) 20 parts by weight

[0098] 2,4-D acid (active ingredient) 20 parts by weight

[0099] Farm milk 500 # (Emulsifier) ​​5 parts by weight

[0100] Sodium dodecylbenzenesulfonate (anionic surfactant) 9 parts by weight

[0101] Oleic acid (synergist) 2 parts by weight

[0102] Water (carrier) 44 parts by weight

[0103] Mix the above-mentioned various ingredients together, grind them in a sand mill until the particle size of the active ingredients is less than 3 μm, take samples for testing, and get 40% Nitrosulcotrione·2,4-D Acid Water Herbicide The finished composition.

Embodiment 2

[0105] Composition and preparation method of 30% Nitrosulcotrione·2,4-D sodium salt wettable powder (5:1)

[0106] Nitrosulcotrione (active ingredient) 25 parts by weight

[0107] 2,4-D sodium salt (active ingredient) 5 parts by weight

[0108] Sodium alkylbenzene sulfonate (anionic surfactant) 7 parts by weight

[0109] Sodium lignosulfonate (dispersant) 8 parts by weight

[0110] Bentonite (carrier) 55 parts by weight

[0111] The above-mentioned various components are sequentially added into the reaction kettle, stirred, fully mixed, and pulverized to a certain fineness to obtain a finished product of 30% nitrosulcotrione·2,4-D sodium salt wettable powder herbicide composition.

Embodiment 3

[0113] Composition and preparation method of 39% nitrosulcotrione·2,4-D ester suspoemulsion (1:12)

[0114] Nitrosulcotrione (active ingredient) 3 parts by weight

[0115] 2,4-D ester (active ingredient) 36 parts by weight

[0116] Farm Milk 1600 # (nonionic surfactant) 6 parts by weight

[0117] Sodium dodecylbenzenesulfonate (emulsifier) ​​8 parts by weight

[0118] Pull apart powder (dispersant) 5 parts by weight

[0119] Lauric acid (synergist) 1 part by weight

[0120] Methylated soybean oil (synergist) 2 parts by weight

[0121] Water (carrier) 39 parts by weight

[0122] Mix the above-mentioned ingredients together, grind them in a sand mill until the particle size of the active ingredients is less than 3 μm, take samples for testing, and get 39% nitrosulcotrione·2,4-D ethyl ester suspoemulsion for weed control finished formulations.

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Abstract

The invention relates to a binary compound synergistic herbicide containing nitrosulcotrione A and herbicide B, which aims to solve the problems of single performance, poor effect and large residual amount of the herbicide in the chemical control of weeds in cornfields. Among them, A is nitrosulcotrione, herbicide B is 2,4-D acid B1, 2,4-D sodium salt B2, 2,4-D ethyl ester B3, 2,4-D butyl ester B4, 2 , 4-D isooctyl ester B5, 2,4-D dimethylamine salt B6, dimethyltetrachloric acid B7, dimethyltetrachlorosodium salt B8, dimethyltetrachloroethyl ester B9, dimethyltetrachlorobutyl ester B10 , one of dimethyltetrachloroisooctyl ester B11 and dimethyltetrachlorodimethylamine salt B12. The composite synergistic herbicide used for preventing and controlling weeds in cornfields of the present invention contains nitrosulcotrione herbicide A and herbicide B in an amount of 1 to 99 parts by weight and conventional pesticide adjuvants and / or carriers, and its effect is It has high herbicidal efficiency, wide herbicidal spectrum, is safe for corn, has no side effects, has no effect on subsequent crops, and has low cost of use.

Description

Technical field: [0001] The present invention relates to a compound synergistic herbicide composition, more specifically a binary compound synergistic herbicide containing nitrosulcotrione A and herbicide B, wherein A is nitrosulcotrione, herbicide B is 2,4-D acid B1, 2,4-D sodium salt B2, 2,4-D ethyl ester B3, 2,4-D butyl ester B4, 2,4-D isooctyl ester B5, 2,4 -D dimethylamine salt B6, dimethyltetrachloric acid B7, dimethyltetrachlorosodium salt B8, dimethyltetrachloroethyl ester B9, dimethyltetrachlorobutyl ester B10, dimethyltetrachloroisooctyl ester B11, dimethyltetrachloroethyl One of tetrachlorodimethylamine salts B12. Background technique: [0002] At present, the sown area of ​​my country's corn field is nearly 400 million mu, which is one of the three major food crops, with an output of about 130 million tons. There are many kinds of herbicides currently used in corn fields, such as acetochlor, atrazine, nicosulfuron, 2,4-D butyl ester, etc. Acetochlor herbicides...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N41/02A01N39/04A01N39/02A01P13/00
Inventor 王丕业白殿奎郑学胜姜淑华高丽娜王立新杨艳
Owner 大连松辽化工有限公司
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