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Weeding composition for fruit tree seedling nursery

A herbicidal composition and the technology of the composition are applied in the direction of chemicals, herbicides and algicides used for biological control, application, etc., which can solve the problems of poor actual control effect and easy resistance of weeds in orchard nurseries, etc. Achieve the effect of improving the control effect, delaying the resistance, and reducing the amount of use

Active Publication Date: 2015-08-19
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems in the prior art that when a single pesticide is used alone, it is easy to produce resistance to weeds in orchard nurseries and the actual control effect is poor, to provide a high-efficiency, broad-spectrum, economical, safe, and beneficial to weeds. Herbicidal composition for integrated management

Method used

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  • Weeding composition for fruit tree seedling nursery
  • Weeding composition for fruit tree seedling nursery
  • Weeding composition for fruit tree seedling nursery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Biological Assay Example 1: Indoor Combined Action Assay.

[0018] Test materials: Imperata cylindrica (L.) Beauu.var.moior) and Calystegia nederacea, seeds collected from Xiaohedong Village, Lianghua Town, Huidong County, Guangdong Province.

[0019] Test equipment: controllable light incubator; POTTER precision laboratory spray tower; electronic balance (sensitivity 0.1mg); micropipette gun, etc.

[0020] Test method: Put a certain amount of soil in a porcelain bowl with a height of 6cm and a diameter of 9cm, sow 15 seeds of the target weed in the porcelain bowl, cover with 0.5-1cm of fine soil, and then cultivate it in a greenhouse. When the target weeds sprout Carry out soil spraying treatment, spray 1ml per porcelain pot quantitatively, repeat each treatment 4 times, and set the treatment without pesticide as the control, after the treatment, the test materials are placed in the greenhouse for cultivation, and the growth of the target weeds is regularly observed, v...

Embodiment 1

[0033] Preparation Method Example 1: 40% fluorfluorfen propargyl, oxyfluorfen, acetochlor, suspension concentrate.

[0034] The following substances are all percentages by weight: fluorfluorfen propargyl 2%, oxyfluorfen 4%, acetochlor 34%, 500# 5%, fast T 5%, xanthan gum 3%, bentonite 2%, organic Silicon 3%, deionized water topped up to 100%.

[0035] The above-mentioned materials are pre-crushed in proportion, and then added to a sand mill for grinding, and then prepared after high-shear mixing to prepare 40% fluorfluorfen-ethoxyfluorfen-acetochlor suspension concentrate.

[0036] 40% Flurafen Propyridine·Ethoxyfluorfen Acetochlor·Acetochlor Suspension Agent to control weeds in litchi nursery, after sowing litchi seedlings, spray the soil with water before seedlings, control effect 20 days after treatment: 40% Flurafen Propyridine The dosage of oxyfluorfen and acetochlor suspending agent is 100 g / mu, 150 g / mu, and the control effect is 93.72%, 97.28%; 50 g / mu of 240 g / L oxy...

Embodiment 2

[0037] Preparation Method Example 2: 50% fluorfen propargyl · oxyfluorfen · acetochlor wettable powder.

[0038] The following substances are all percentages by weight: fluorfluorfen propinyl 3%, oxyfluorfen 3%, acetochlor 44%, lignosodium 6%, NNO 5%, talcum powder 5%, bentonite 3%, kaolin supplemented to 100%.

[0039] The above-mentioned materials are coarsely pulverized in proportion, then mixed uniformly in a mixer, and then pulverized twice by air flow to obtain 50% fluorfen propargyl · oxyfluorfen · acetochlor wettable powder.

[0040] 50% propargyl fluorfen · ethoxyfluorfen · acetochlor wettable powder to control weeds in citrus nursery, spray the soil with water before the citrus seedlings after sowing, control effect 20 days after application: 50% propyne The dosage of flurafen · ethoxyfluorfen · acetochlor suspending agent is 80 g / mu, 120 g / mu, the control effect is 92.48%, 98.05%; %; 240 g / L oxyfluorfen EC dosage 50 g / mu control 80.51%; 900 g / L acetochlor oil tall...

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Abstract

The present invention discloses a weeding composition for fruit tree seedling nursery, wherein the composition comprises, by weight, 1-20% of flumioxazin, 2-30% of oxyfluorfen, 5-60% of acetochlor, and the balance of a pesticidally-allowed and pesticidally-acceptable auxiliary component, and the flumioxazin, the oxyfluorfen and the acetochlor are active ingredients. According to the present invention, the weeding composition has the significant synergy effect, the fruit tree seedling nursery weed preventing and removing effect is significant superior to the single use of the single agent, the consumption of the active ingredients of the composition is significantly reduced compared with the single use, the weeding spectrum is expanded, the weed drug resistance generation is delayed, and the environment pollution is reduced.

Description

technical field [0001] The invention relates to a herbicidal composition for fruit tree nurseries, the active ingredients of which are fluorfluorfen propargyl, oxyflufen and acetochlor. Background technique [0002] Chemical weed control is one of the main means of weed control in fruit tree nurseries, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in fruit tree nurseries, the grass phase is complex, grass weeds, broad-leaved weeds and other types of weeds are mixed, and the use of a single type of compound herbicide will show some defects and limitations, and cannot be completely eliminated. Eliminate weeds in farmland. The combination of different types of compound herbicides can expand the herbicidal spectrum, improve the actual effect, delay weed resistance, and save time and labor. [0003] Flurafen propargyl is a broad herbicide spectrum contact browning soil treatment herbicide, and the soil is treat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/84A01P13/00A01N33/22A01N37/26
Inventor 陈佛祥冷忠国王礼文朱刚张志伟吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH