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Mixed herbicide of wheat after seedlings

A herbicide and wheat seedling technology, applied in the field of pesticides, can solve the problems of unregistered use, etc., and achieve the effect of enhanced control effect, wheat safety, and remarkable weeding effect

Inactive Publication Date: 2013-01-02
ANHUI FENGLE AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently no reports of use on wheat, let alone registered use

Method used

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  • Mixed herbicide of wheat after seedlings
  • Mixed herbicide of wheat after seedlings
  • Mixed herbicide of wheat after seedlings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Preparation of the suspension concentrate of the compound herbicide described in the present invention (mesotrione: clopyralid = 1:3)

[0019] 24% mesotrione · clopyralid suspension concentrate, 24% refers to the percentage of the two active components of mesotrione and clopyralid in the total weight. Get 6kg mesotrione, 18kg clopyralid,

[0020] 3% phenylethylphenol polyoxyethylene ether polyoxyphenyl ether, 1% magnesium aluminum silicate, 3% propylene glycol, 0.2% xanthan gum, 0.1% Kathon, and make up to 100% with water.

Embodiment 2

[0021] Example 2: Preparation of the oil suspension concentrate of the compound herbicide of the present invention (mesotrione: clopyralid = 1:4)

[0022] 20% mesotrione·clopyralid oil suspension concentrate, 20% refers to the percentage of the two active components of mesotrione and clopyralid in the total weight. Take 4kg mesotrione, 16kg clopyralid, 8% Pluronic125, 5% propylene glycol, 0.8% xanthan gum, 1% methylated vegetable oil, and make up to 100% with water.

[0023]

Embodiment 3

[0024] Example 3: Indoor Activity Determination of Combination of Mesotrione and Clopyralid Stem and Leaf Treatment

[0025] 1. Purpose of the test

[0026] Under greenhouse conditions, the pot experiment method was used to study the herbicidal effect of the binary compound of mesotrione and clopyralid, and Sun Yunpei's co-toxicity coefficient method was used to evaluate the joint effect of the two mixed in different proportions. The rational mixing of sulfotrione and clopyralid provides a scientific basis.

[0027] 2. Test conditions

[0028] 2.1 Test crops Wheat variety: Wanmai 33

[0029] 2.2 The tested weed Artemisia sobani ( Descurainia sophia (L.) Schur), lacquer ( Euphorbia helioscopia L.), wild oats ( Avena fatua L.) The seeds were harvested in the field in the previous year, and the germination rate was above 85%).

[0030] 2.3 Test conditions and cultivation of test materials

[0031] Cultivate the test materials in a light cultivation room at a temperat...

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Abstract

The invention relates to the technical field of pesticides and discloses a mixed herbicide of wheat after seedlings. The mixed herbicide comprises two active ingredients which are mesotrione and clopyralid. The weight ratio between mesotrione and clopyralid is (1:3)-(1:5), and preferably, the mass content of mesotrione and clopyralid in the mixed herbicide is 5-85%. The mixed herbicide can prevent and kill annual broad-leaf weeds in wheat fields, particularly resistance broad-leaf weeds such as descurainia sophia, sun euphorbia herb and shepherdspurse herb, can remove part of grassy weeds, is remarkable in weeding effect, has remarkable synergistic effect, has no influence on afterreap crops, and is an ideal herbicide.

Description

Technical field [0001] The invention relates to the technical field of pesticides, and in particular to a post-emergence compound herbicide for wheat. Background technique [0002] Wheat is one of the main food crops in northern my country. The annual planting area in our country is more than 30 million hectares, second only to the rice planting area. The area affected by weeds in wheat fields accounts for more than 30% of the total planting area, of which more than 8% are seriously affected, generally reducing yields by more than 15%, and in severe cases, the harvest may be lost. Therefore, the proportion of herbicides used in domestic wheat fields reaches almost 100%, and the dosage is very large. At present, the main herbicides used for post-emergence control of broadleaf weeds in domestic wheat fields include: bensulfuron, dicamba, metsulfuron, thiansulfuron, isoproturon, etc. However, due to years of use, many weeds have developed resistance. , causing its dosage to i...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N41/10A01P13/00
Inventor 龚国斌陈克付金劲松程小虎管怀骥王毅缪莉
Owner ANHUI FENGLE AGROCHEM
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