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Herbicidal composition for corn field and production thereof

A herbicidal composition and cornfield technology, applied in botany equipment and methods, animal repellents, plant growth regulators, etc., can solve the problems of long-lasting effect, ineffectiveness, and poor effect on broad-leaved weeds, and achieve Improve the control effect, expand the weed killing spectrum, and make up for the effect of poor control effect

Inactive Publication Date: 2003-06-18
王春源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Amide herbicide alachlor has no inhibitory effect on crops, but alachlor has poor or ineffective effect on some broad-leaved weeds
Atrazine, a s-triazine type, is used in corn fields. Although it can control broad-leaved weeds with good selectivity and safety, it has a long-lasting effect and its dosage will affect the next crop.
Moreover, the use of a single herbicide causes changes in the grass phase in the field, and the weeding effect is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The cornfield soil herbicidal composition of the present embodiment contains 18 parts by weight of alachlor, 30 parts by weight of atrazine, 2.0 parts by weight of camphor, 3.0 parts by weight of azone, 2.0 parts by weight of turpentine, 1.0 parts by weight of ether, emulsifier 2101 ( Shandong Binzhou Chemical Factory) 8.0 parts by weight, 36.0 parts by weight of water, the herbicidal composition formed.

[0050] The preparation method is as follows: first, according to the above ratio, the raw materials are put into the reaction kettle in the order of alachlor, emulsifier 2101, atrazine (produced by Shandong Binzhou Qiaochang Co., Ltd.), camphor, azone, turpentine, ether, and water. , The negative pressure in the reactor is -0.09Mpa when feeding, stir and mix in the reactor at 30°C for 2 hours for emulsification, make the positive pressure in the reactor 0.05Mpa, release the product for testing, and fill the bottle if it is qualified , packed into storage.

Embodiment 2

[0052] The cornfield soil herbicidal composition of the present embodiment contains 20 parts by weight of alachlor, 28 parts by weight of atrazine, 2.0 parts by weight of camphor, 3.0 parts by weight of azone, 2.0 parts by weight of turpentine, 1.0 parts by weight of ether, emulsifier 2101 8.0 parts by weight, water 36.0 parts by weight of the herbicidal composition.

[0053] The preparation method is as follows: firstly, the raw materials are put into the reaction kettle in the order of alachlor, emulsifier 2101, atrazine, camphor, azone, turpentine, ether, and water according to the above ratio. The negative pressure in the reactor is -0.05Mpa, stir and mix in the reactor at 25°C for 3 hours for emulsification, and make the positive pressure in the reactor 0.03Mpa to release the product.

Embodiment 3

[0055] The cornfield soil herbicidal composition of the present embodiment contains 28 parts by weight of alachlor, 20 parts by weight of atrazine, 2.0 parts by weight of camphor, 3.0 parts by weight of azone, 2.0 parts by weight of turpentine, 1.0 parts by weight of ether, emulsifier 2101 8.0 parts by weight, water 36.0 parts by weight of the herbicidal composition.

[0056] The preparation method is as follows: firstly, the raw materials are put into the reaction kettle in the order of alachlor, emulsifier 2101, atrazine, camphor, azone, turpentine, ether, and water according to the above ratio. The negative pressure in the reactor is -0.07Mpa, stir and mix in the reactor at 25°C for 3 hours to carry out emulsification, make the positive pressure in the reactor 0.04Mpa to release the product.

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Abstract

A composite herbicide for corn field is prepared from alachlor, atrazine, camphor, nitrone, turpentine, ether, emulsifier and water through proportional mixing and stirring for 1-4 hr. Its advantages are high effect, high safety to corn and wheat, and low cost.

Description

1. Technical field [0001] The present invention relates to a herbicidal composition and its preparation method, more specifically to a water suspension herbicidal composition and its preparation method. 2. Background technology [0002] At present, acetochlor (2'-ethyl-6'-methyl-N-(ethoxymethyl)-2-chloroacetylanilide) is the main method for controlling corn weeds in China, but acetochlor is Crops have an inhibitory effect, and its hidden phytotoxicity has been paid more and more attention by people in the industry at home and abroad. The amide herbicide alachlor has no inhibitory effect on crops, but alachlor has poor or ineffective effect on some broad-leaved weeds. Atrazine, a s-triazine type, is used in corn fields. Although it can control broad-leaved weeds with good selectivity and safety, it has a long-lasting effect and its dosage will affect the next crop. Moreover, the use of a single herbicide causes changes in the grass phase in the field, and the weeding effect...

Claims

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Application Information

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IPC IPC(8): A01N43/88
Inventor 王春源任立生
Owner 王春源
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