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High-efficiency paddy field herbicide composition

A composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve the problems of rice quality decline, environmental pollution, and increase in drug costs, so as to reduce the amount of drugs used and kill them efficiently. Killing effect, long-lasting effect of application

Inactive Publication Date: 2015-01-07
QINGDAO YONGTONG ELEVATOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And usually paddy field herbicides all have strong selectivity, good weeding effect to a certain family weeds but very poor to another family weeds weeding effect, so can only use multiple times, multi-species, multi-dose medication, excessive and the abuse of pesticides have brought negative impacts such as rice quality decline and environmental pollution, and increased the cost of medication

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A paddy field high-efficiency herbicide composition, said composition is prepared according to the following raw materials in weight fractions: 40 parts of molinate, 28 parts of cyhalofop-methyl, 12 parts of pyrazosulfuron-methyl, and 6 parts of bentazone. (1Kg per serving)

[0016] For weeding of rice seedlings, apply pesticides after the 3-leaf stage of seedlings and at the 2-3 leaf stage of weeds; in transplanted fields, pesticides can be applied 10-20 days after transplanting, and the best application is at the 2-3 leaf stage of weeds.

Embodiment 2

[0018] A high-efficiency herbicide composition for paddy fields, which is prepared from the following raw materials in weight fractions: 30 parts of molinate, 15 parts of cyhalofop-methyl, 5 parts of pyrazosulfuron-methyl, and 5 parts of bentazone. (1Kg per serving)

[0019] For weeding of rice seedlings, apply pesticides after the 3-leaf stage of seedlings and at the 2-3 leaf stage of weeds; in transplanted fields, pesticides can be applied 10-20 days after transplanting, and the best application is at the 2-3 leaf stage of weeds.

Embodiment 3

[0021] A high-efficiency herbicide composition for paddy fields, which is prepared from the following raw materials in weight fractions: 50 parts of molinate, 35 parts of cyhalofop-methyl, 18 parts of pyrazosulfuron-methyl, and 8 parts of bentazone.

[0022] For weeding of rice seedlings, apply pesticides after the 3-leaf stage of seedlings and at the 2-3 leaf stage of weeds; in transplanted fields, pesticides can be applied 10-20 days after transplanting, and the best application is at the 2-3 leaf stage of weeds.

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Abstract

The invention relates to herbicide compositions and in particular relates to a high-efficiency paddy field herbicide composition. The composition is prepared from the following raw materials in parts by weight: 30-50 parts of molinate, 15-35 parts of cyhalofop-butyl, 5-18 parts of pyrazosulfuron-ethyl and 5-8 parts of bentazone. The high-efficiency paddy field herbicide composition is used for preventing and controlling paddy field weeds, has high-efficiency effects of killing grass family weeds such as moleplant seed and barnyard grass, sedge family weeds and other broadleaf weeds, the dosage and application frequency are reduced, the pesticide effect lasting period is long, and the damage of weeds to a paddy field in the whole growth period can be effectively controlled due to one application of the herbicide composition.

Description

technical field [0001] The invention relates to a herbicide composition, in particular to a high-efficiency herbicide composition for paddy fields. Background technique [0002] Rice is the largest food crop in my country. There are many types of weeds in paddy fields, and the types of weeds are different in different regions. There are more than 200 species of weeds in rice areas across the country, of which there are about 40 common and serious weeds. Among the main weeds, barnyardgrass has the largest occurrence and damage area, followed by heteromorphous sedge, bermudagrass, flat stalk grass, daughter of a thousand gold seeds, and spinach. The main weeds in the one-cropping rice area in the middle and cold temperate zones of Northeast and Northwest China include barnyardgrass, flat stalk, Japanese sage, cow felt, eye spinach, yujiuhua, firefly rush, bermudagrass, Spirogyra, etc. The main weeds in the one-season rice area in the warm temperate zone of the North China Plai...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N47/16A01N39/04A01N43/88
Inventor 吴联顺丁兆年
Owner QINGDAO YONGTONG ELEVATOR ENG
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