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Herbicide composition for rice fields

A herbicide and composition technology, applied in the field of pesticides, can solve problems such as poor weeding effect, achieve the effect of reducing the amount of use and improving the killing effect

Inactive Publication Date: 2015-09-09
INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this kind of single herbicide, when used year after year, weeds will have certain resistance, which will lead to poor weeding effect

Method used

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  • Herbicide composition for rice fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: 20% WP

[0021] Proportion (weight ratio): pyrazosulfuron-methyl 10%, oxadiazone 8%, pyrimidine saflufenacil 1%, tea tree oil 1%, pull-off powder 5%, white carbon black 75%.

[0022] Preparation method: firstly absorb tea tree oil with white carbon black, add other raw materials, mix evenly, and jet crush to obtain wettable powder.

Embodiment 2

[0023] Example 2: 30% WP

[0024] Proportion (weight ratio): pyrazosulfuron-methyl 15%, oxadiazone 10%, saflufenacil 2%, tea tree oil 3%, pull-off powder 8%, white carbon black 62%.

[0025] Preparation method: firstly absorb tea tree oil with white carbon black, add other raw materials, mix evenly, and jet crush to obtain wettable powder.

Embodiment 3

[0026] Example 3: 40% WP

[0027] Proportion (weight ratio): pyrazosulfuron-methyl 20%, oxadiazone 12%, samafenacil 3%, tea tree oil 5%, pull-off powder 8%, diatomaceous earth 52%.

[0028] Preparation method: first absorb the tea tree oil with diatomaceous earth, add other raw materials, mix evenly, and air-jet pulverize to obtain wettable powder.

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Abstract

The invention discloses a herbicide composition for rice fields. The herbicide composition comprises the following effective components: metazosulfuron, oxadiazon, pyribenzoxim and tea tree oil; the weight ratio of metazosulfuron, oxadiazon, pyribenzoxim to tea tree oil is (10-25): (8-20): (1-3): (1-5); the total content of the effective components is 20-50%. Through the compatibility of metazosulfuron, oxadiazon, pyribenzoxim and tea tree oil, the herbicide composition has a relatively good effect of killing gramineous weeds, broadleaf weeds and cyperus rotundus; meanwhile, the herbicide composition has a certain effect of preventing and curing such soil-borne diseases as rice seedling blight and rice blast; the herbicide composition further has an effect of repelling pests. Moreover, through the adoption of the herbicide composition, the pesticide consumption is greatly reduced.

Description

technical field [0001] The invention relates to a herbicide, in particular to a herbicide composition for paddy fields, and belongs to the technical field of pesticides. Background technique [0002] Rice is the largest food crop in my country, and the main factors affecting rice yield are rice diseases, insect pests and weeds. Rice field weeds mainly affect and harm rice by competing with rice for water, fertilizer and glory. Because weeds have the characteristics of fast growth and reproduction, well-developed root system, and tall plants, they have the advantages of competing for water, fertilizer, and light in the case of symbiosis with rice, thereby inhibiting the growth of rice. In addition, weed seeds mixed into rice will reduce the quality of rice. [0003] There are more than 100 kinds of weeds in paddy fields, which can be mainly divided into three categories: gramineous weeds (such as barnyardgrass), broad-leaved weeds (such as bermudagrass), and sedge weeds (su...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01P13/00A01P3/00A01P17/00A01N47/36A01N43/824A01N43/54
Inventor 方丽萍陈子雷邬元娟李慧冬董崭
Owner INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI
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