Maize field stalk leaf weedicide composite and its preparation method

A herbicidal composition and cornfield technology, applied in botany equipment and methods, animal repellents, plant growth regulators, etc., can solve the problems of narrow herbicidal spectrum, high price, short application period, etc., and achieve improved Control effect, better effect, make up for poor control effect

Inactive Publication Date: 2003-07-09
王春源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this herbicide has a high price, a narrow herbicidal spectrum, and a short application period.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The cornfield stem and leaf herbicidal composition of the present embodiment contains nicosulfuron (produced by Shandong Binzhou Qiaochang Co., Ltd.), 2 parts by weight, atrazine (Shandong Binzhou Qiaochang Co., Ltd.), 38 parts by weight, and 0.4 parts by weight of camphor , 0.6 parts by weight of azone, 4.0 parts by weight of turpentine, 3.0 parts by weight of ether, 15 parts by weight of emulsifier 2101 (produced by Shandong Binzhou Chemical Factory), 37 parts by weight of water (i.e. replenished to 100 parts by weight with water), the herbicidal composition formed .

[0034] The preparation method is as follows: firstly, the raw materials nicosulfuron, emulsifier 2101, atrazine, camphor, azone, turpentine, ether, and water are put into the reactor according to the above ratio; The pressure is -0.09Mpa, stir and mix in the reactor at 30°C for 2 hours for emulsification, make the positive pressure in the reactor be 0.03Mpa, release the product, carry out the test, fill...

Embodiment 2

[0036] The stem and leaf herbicide composition of the corn field of the present embodiment contains 4 parts by weight of nicosulfuron, 38 parts by weight of atrazine, 0.3 parts by weight of camphor, 0.4 parts by weight of azone, 2.0 parts by weight of turpentine, 2.0 parts by weight of ether, emulsifier 2101 A herbicidal composition formed by supplementing 10 parts by weight with water to 100 parts by weight (that is, adding 43.3 parts by weight of water).

[0037]Its preparation method is, first according to the above-mentioned ratio, raw material nicosulfuron, emulsifier 2101, atrazine, camphor, azone, turpentine, ether, water are put into the reaction kettle, and the negative The pressure is -0.05Mpa, stir and mix in the reactor at 25°C for 3 hours to emulsify, and make the positive pressure in the reactor be 0.03Mpa to release the product.

Embodiment 3

[0039] The cornfield stem and leaf composition of the present embodiment contains 1 weight part of nicosulfuron, 10 weight parts of atrazine, 0.1 weight part of camphor, 0.2 weight part of azone, 0.1 weight part of turpentine, 0.1 weight part of ether, emulsifier 2101 5 parts by weight, 83.5 parts by weight of water (that is, make up to 100 parts by weight with water), the herbicidal composition formed.

[0040] Its preparation method is, at first according to above-mentioned ratio, raw material nicosulfuron, emulsifier 2101, atrazine, camphor, azone, turpentine, ether, water are put into reaction kettle; The pressure is -0.06Mpa, stir and mix in the reactor at 15°C for 1 hour, carry out emulsification, make the positive pressure in the reactor be 0.04Mpa and release the product.

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PUM

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Abstract

The present invention relates to a kind of aqueous water suspension weeding composite for corn field and its preparation method. Said composite contains (by weight portion) 1-10 portions of nicosulfuron, 10-50 portions of atrazine, 0.1-0.4 portion of camphor, 0.2-0.6 portions of azone laurocapram, 0.1-4.0 portions of furpentine, 0.1-3.0 portions of ethylether, 5.0-15.0 portions of emulsifier 2.101 and water replenishing to 100 portions. Its preparation method includes the following steps: placing the nicosulfuron, emulsifier 2101, atrazine, camphor, azone laurocapram, furpentine, ethyl ether and water into reaction still, when feeding, making reaction still be in negative pressure state, stirring and mixing for 1-4 hr. at room temp., making reaction still be in positive pressure state and discharging the product.

Description

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. Background technique [0002] With the expansion of corn interplanting and machine-harvested wheat, pre-emergence weeding in corn fields is becoming less and less suitable for production requirements. Since the advent of urea herbicides such as nicosulfuron, weeding of stems and leaves has become a reality. Nicosulfuron It can be used to control annual and perennial grass weeds and certain broadleaf weeds in cornfields. Apply after germination, at the 3rd to 4th leaf stage of corn, when the weeds emerge to reach a plant height of about 5cm, use 4% nicosulfuron (Yu Nongle) suspending agent 50-75ml / mu (summer corn), 66.7-100ml / mu (Northern spring corn) add 30 kg of water to spray the stems and leaves. However, this herbicide has a high price, a narrow herbicidal spectrum and a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36
Inventor 王春源任立生
Owner 王春源
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