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Compound herbicide after seedling of wheat

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, good application prospects, and remarkable weeding effect

Inactive Publication Date: 2012-12-26
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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  • Compound herbicide after seedling of wheat
  • Compound herbicide after seedling of wheat
  • Compound herbicide after seedling of wheat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Preparation of the suspension concentrate of the compound herbicide described in the present invention (mesotrione: thifensulfuron-methyl=2:1)

[0020] 24% mesotrione·thifensulfuron-methyl suspension concentrate, 24% refers to the percentage of the two active components, mesotrione and thifensulfuron-methyl, in the total weight. Get 16kg mesotrione, 8kg thifensulfuron-methyl,

[0021] 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

[0022] Example 2: Preparation of the oil suspension concentrate of the compound herbicide of the present invention (mesotrione: thifensulfuron-methyl=3:1)

[0023] 32% mesotrione·thifensulfuron-methyl oil suspension concentrate, 32% refers to the percentage of the two active components, mesotrione and thifensulfuron-methyl, in the total weight. Take 24kg mesotrione, 8kg thifensulfuron-methyl, 8% Pluronic125, 5% propylene glycol, 0.8% xanthan gum, 1% methylated vegetable oil, and make up to 100% with water.

[0024]

Embodiment 3

[0025] Example 3: Indoor Activity Determination of Combined Action of Mesotrione and Thifensulfuron-methyl on Stem and Leaf Treatment

[0026] 1. Purpose of the test

[0027] Under greenhouse conditions, pot experiments were used to study the herbicidal effect of the binary compound of mesotrione and thifensulfuron-methyl, and Sun Yunpei’s co-toxicity coefficient method was used to evaluate the type of joint action of the two mixed in different proportions. The rational mixing of oxazone and thifensulfuron-methyl provides a scientific basis.

[0028] 2. Test conditions

[0029] 2.1 Test crops Wheat variety: Wanmai 33

[0030] 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%).

[0031] 2.3 Test conditions and cultivation of test materials

[0032] Cultivate the test materials in a l...

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Abstract

The invention relates to the technical field of pesticides, and discloses a compound herbicide after seedling of wheat. The compound herbicide comprises two active ingredients, i.e., mesotrione and thifensulfuron, wherein the weight ratio of the mesotrione to the thifensulfuron is 1.5:1-5:1; and preferably, the weight percentage content of the mesotrione and the thifensulfuron is 5-85 percent of the compound herbicide. According to the compound herbicide, not only annual broadleaf weeds, particularly resistant broadleaf weeds such as flixweed, euphorbia helioscopia and shepherd's purse, of wheat fields, but also a part of grassy weeds can be prevented and killed off, the herbicidal effect is obvious, and the compound herbicide has an obvious synergistic effect, has no influence on after-reap crops and is an ideal herbicide.

Description

technical field [0001] The invention relates to the technical field of pesticides, 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 perennial planting area in China is more than 30 million hectares, second only to rice planting area. The area of ​​wheat field weed damage accounts for more than 30% of the total planting area, of which more than 8% are seriously damaged, and the yield is generally reduced by more than 15%, and the harvest can be completely destroyed in severe cases. Therefore, the proportion of herbicides used in domestic wheat fields is almost 100%, and the amount of herbicides used is very large. At present, the main herbicides used to control broad-leaved weeds after emergence in domestic wheat fields are: Trisulfuron-methyl, Dicamba, Metsulfuron-methyl, Thisulfuron-methyl, Isoproturon, etc. However, due to years of use, many weeds have developed re...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N41/10A01P13/00
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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