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A herbicidal composition and herbicide technology, applied in the field of pesticides, can solve the problem of not being able to completely remove weeds, achieve the effects of reducing the amount of pesticides, improving the control effect, and saving labor
Active Publication Date: 2014-01-01
LIANBAO CROP TECH
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Problems solved by technology
[0008] Due to the large number and variety of weeds in the cornfield, the existing herbicides still cannot completely remove all the we...
Method used
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Embodiment 1
[0062] Embodiment 1 Indoor toxicity assay:
[0063] After the active components of different herbicides are mixed, due to the differences in composition, structure, and physical and chemical properties of each active component, the combined effect between the active components is usually expressed as synergistic effect, additive effect or antagonistic effect. The so-called synergistic effect is the mutual cooperation between different substances, and the effect produced is greater than the sum of the effects of each component; the additive effect is that the effect produced is equal to the sum of the effects of each component; antagonism refers to the effect of two substances. In biological organisms, one substance interferes with the effect of another substance, or interferes with each other's effects, reducing the overall effect.
[0064] The co-toxicity coefficient method is usually used to evaluate the interaction of two different herbicide active components after mixing. ...
Embodiment 2
[0074] Example 2: 1% thiazone-methyl-mesotrione wettable powder
[0075] Thiensulfuron-methyl 0.2kg, mesotrione 0.8kg, penetrant JFC 5kg, calcium lignosulfonate 9kg, kaolin 85kg. Mix thiatonsulfuron-methyl and mesotrione with various adjuvants and fillers, and air-jet pulverize to obtain 1% thiazone-methyl-mesotrione wettable powder.
Embodiment 3
[0076] Example 3: 36% Thicarbazone-Mesotrione WP
[0077] Thicarbazone-methyl 6kg, mesotrione 30kg, pull open powder BX 3kg, carboxymethyl cellulose 6kg, kaolin 55kg. Mix thiatonsulfuron-methyl and mesotrione with various adjuvants and fillers, and air-jet pulverize to obtain 36% thiazone-methyl-mesotrione wettable powder.
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Abstract
The invention relates to the technical field of pesticides and in particular relates to a weeding composition and a preparation thereof. The weeding composition provided by the invention comprises thiencarbazone-methyl and mesotrione; the invention provides an optimal ratio of thiencarbazone-methyl to mesotrione when thiencarbazone-methyl and mesotrione serve as weedicide components; a weedicide provided by the invention has a very good prevention effect on nearly all weeds in a maize field; the ratio of thiencarbazone-methyl to mesotrione is 1 to (2-25); the co-toxicity coefficient is more than 120; a remarkable synergistic effect is achieved; the usage amount of the weedicide can be reduced; the labor force is saved; in addition, the composition provided by the invention is simple in process and common in auxiliary materials in a weedicie preparation process; a test shows that when the usage amount of the weedicide is 100g/hm<2>, the prevention effect on grassy weeds and broadleaf weeds in the maize field caused by the weedicide is remarkably superior to that of a thiencarbazone-methyl or mesotrione preparation.
Description
technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicidal composition and its formulation. Background technique [0002] Corn is the food crop with the highest total yield in the world, and the cultivation of corn is also very popular in China. At present, it is planted all over China, especially in the northeast, north and southwest provinces. Durum corn is commonly planted in Northeast China, and dent corn suitable for milling is mostly planted in North China, and its quality is inferior to durum corn. Corn is a good health product in coarse grains, and eating corn is quite beneficial to human health. According to the survey, there are more than 30 kinds of common weeds in corn fields, such as barnyard grass, Qianjinzi, crabgrass, foxtail, goosegrass, bermudagrass, reed and other gramineous weeds, and rice sedge and other sedge weeds. And Polygonum, cocklebur, velvetleum, purslane, black nightshade, quinoa, amaranth...
Claims
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Application Information
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