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Paddy field weeding composition and application thereof

A herbicidal composition, paddy field technology, applied in the direction of application, herbicide, algicide, biocide, etc., can solve the problems of mixing penoxsulam and fluroxyfen and application without reports, etc. Achieve the effects of reducing adverse effects, expanding the weeding spectrum, and improving the control effect

Active Publication Date: 2013-01-02
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There is no report on the mixing and application of penoxsulam and fluroxyfen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation embodiment one: 6% penoxsulam · fluroxypyr wettable powder, penoxsulam 1.5%, fluroxyl 4.5%, wetting agent pull open powder 5%, dispersant NNO 12%, talcum powder 4%, kaolin supplemented to 100%. The above formula is coarsely pulverized in proportion, put into a mixer and mixed uniformly, and then jet pulverized to obtain 6% penoxsulam·fluroxypyr wettable powder.

[0035] This example is used to prevent and control annual weeds in direct-seeding paddy fields. 6% penoxsulam · fluroxypyr wettable powder formulation for mu is 20 grams, mixed with water and sprayed with stems and leaves, and the control effect is 96.5% 10 days after the medicine ; Contrast single agent 2.5% penoxsulam oil suspension concentrate mu-use preparation 80 grams, watered stem and leaf spray, 10 days after the medicine, the control effect was 89.8%; contrast single-agent 20% fluroxypyr acetic acid emulsifiable oil mu-use preparation 50 grams, watered stem and leaf spray, 63.1% in 10 da...

Embodiment 2

[0036] Preparation embodiment two: 6.9% penoxsulam·fluroxyfen suspension concentrate, penoxsulam 0.9%, fluroxyfen 6%, emulsifier 1601# 15%, wetting agent LS 5%, dispersant SOPA- 270 4%, bentonite 3%, xanthan gum 0.1%, silicone defoamer 0.4%, glycerol 5%,

[0037] Make up to 100% with deionized water.

[0038] The above formula was pre-crushed according to the proportion, then added to a sand mill for grinding, and prepared after high-shear mixing to prepare a 6.9% penoxsulam·fluroxyfen suspension concentrate.

[0039] This embodiment is used to control annual weeds in direct-seeding paddy fields, 6.9% penoxsulam · fluroxypyr acetic acid suspending agent mu preparation 20 grams, watered stem and leaf spray, 10 days after the drug, the control effect is 97.3%; Contrast single agent 2.5% penoxsulam oil suspension concentrate 80 grams of preparation for mu, watered stem and leaf spray, 10 days after the medicine, the control effect is 89.5%; contrast single agent 20% fluroxypyr...

Embodiment 3

[0040] Preparation embodiment three: 15% Penoxsulam·Clfluroxypyr Isooctyl Water Dispersible Granules, Penoxsulam 2.5%, Fluroxypyr Isooctyl 12.5%, Sodium Lauryl Sulfate 6%, Polymer Carboxylate 4%, Sodium Chloride 2%, Polyethylene Glycol 3%, Kaolin to make up to 100%. Dry pulverize, granulate, dry and sieve the above formula in proportion to prepare 15% penoxsulam·fluroxypyr isooctyl water-dispersible granules.

[0041]This embodiment is used to prevent and control annual weeds in direct-seeding paddy fields, 15% penoxsulam · fluroxypyr isooctyl water-dispersible granules, 7 grams of preparation per mu, mixed with water and sprayed with stems and leaves, 10 days after the medicine The control effect was 94.8%; the control effect was 88.6% 10 days after the control single dose of 2.5% penoxsulam oil suspension was 80 grams of mu-use preparation mixed with water; the control effect was 88.6% 10 days after the control; Acetic acid emulsifiable oil mu preparation 50 grams, watere...

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PUM

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Abstract

The invention discloses a paddy field weeding composition and application thereof. The paddy field weeding composition comprises penoxsulam and fluroxypr in a weight ratio of (10:1) to (1:20), wherein the total weight of the penoxsulam and the fluroxypr is 1 to 80 percent of the weight of the composition. The composition is suitable for preventing and weeding ephemeral weeds in a paddy field. Compared with a single agent, the composition has much more desirable prevention and treatment effect of the ephemeral weeds in the paddy field, and the using dose of pesticides is reduced, the cost of pesticide use is reduced, the service life of medicaments is prolonged, and the adverse effect of the pesticides on ecological environment is reduced.

Description

technical field [0001] The herbicidal composition involved in the present invention uses penoxsulam and fluroxyfen as active ingredients and is used for controlling weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. In recent years, due to the large-scale use of some herbicide varieties alone, many weeds have developed resistance, and the control effect is difficult to guarantee. In paddy fields, the problem of weed resistance is particularly prominent. The occurrence of weeds is complex. Not only are annual and perennial weeds mixed, but also the emergence of weeds is uneven. Seeds, young and old weeds occur alternately, and herbicide varieties are used alone Every time, there will be defects and limitations in some aspects. [0003] Fluroxypyr, commonly known as fluroxypyr in English, is a systemic conduction post-emergence herbicide, which is quickly absorbed by plants after application, ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N43/40A01P13/00
Inventor 刘鹏冷忠国陈佛祥
Owner GUANGDONG ZHONGXUN AGRI TECH
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