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Herbicide composition for paddy fields and application of herbicide composition

A herbicide and composition technology, applied in the field of herbicide compositions in paddy fields, can solve the problems of aggravating farmland surface pollution, unstable control effect, accelerating weed resistance, etc. Delaying the effects of weed resistance

Inactive Publication Date: 2018-02-02
南京惠宇农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, in order to reduce the frequency of application, reduce labor, and reduce agricultural costs, farmers mix soil sealing agents and stem and leaf treatment agents in the field. Technical problems,) The control effect is unstable, and phytotoxicity often occurs, resulting in reduced rice production, accelerated weed resistance, and aggravated farmland surface pollution

Method used

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  • Herbicide composition for paddy fields and application of herbicide composition
  • Herbicide composition for paddy fields and application of herbicide composition
  • Herbicide composition for paddy fields and application of herbicide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: prepare compound herbicide emulsifiable concentrate of the present invention

[0051] The implementation steps of this embodiment are as follows:

[0052] Weigh 0.5 parts by weight of penoxsulam, 20.0 parts by weight of cyhalofop-ester, 4.5 parts by weight of pendimethalin, 13.5 parts by weight of isophorone co-solvent, 9.3 parts by weight of cyclohexanone co-solvent, 5.9 parts by weight of ten Calcium dialkylbenzene sulfonate emulsifier, 8.6 parts by weight of castor oil polyoxyethylene ether BY-140 emulsifier, 3.5 parts by weight of epoxidized soybean oil stabilizer and supplemented to 100 parts by weight of oil 150# solvent. Pump the above co-solvent and part of the solvent into the batching kettle, add penoxsulam and cyhalofop-ethyl, start stirring and heating until completely dissolved, then add the remaining solvent, stabilizer and emulsifier. Stir and mix evenly, transfer to a settling tank to settle overnight, filter, and test the quality indicato...

Embodiment 2

[0053] Embodiment 2: prepare compound herbicide water emulsion of the present invention

[0054] The implementation steps of this embodiment are as follows:

[0055] Oil phase preparation:

[0056] Weigh 1.0 parts by weight of penoxsulam, 1.0 parts by weight of cyhalofop-methyl, 8.0 parts by weight of pendimethalin, 22.5 parts by weight of xylene, 18.6 parts by weight of methyl oleate and 12.0 parts by weight of TEVA 4242-Q, in order Pour into the batching kettle, start stirring and heat until completely dissolved;

[0057] Preparation of the aqueous phase:

[0058] Weigh 5.6 parts by weight of ethylene glycol and 27.0 parts by weight of water into the shearing kettle, and start the shear until completely dissolved;

[0059] Oil phase mixed with water phase:

[0060] The oil phase prepared above was added (pumped) into the water phase in the shear tank, and supplemented with water to a total amount of 100 parts by weight, and sheared in the shear tank for 1 hour. Then, va...

Embodiment 3

[0061] Embodiment 3: prepare compound herbicide wettable powder of the present invention

[0062] The implementation steps of this embodiment are as follows:

[0063] Weigh 7.5 parts by weight of penoxsulam, 2.5 parts by weight of cyhalofop-ethyl, 45.0 parts by weight of pendimethalin, 3.3 parts by weight of wetting agent Tersperse 1004 (Huntsman), 5.2 parts by weight of dispersant Geropon T / 36 (Rhodia ), 2.5 parts by weight of dispersant Tamol DN (BASF), 2.5 parts by weight of sodium lignosulfonate, 18 parts by weight of white carbon black and kaolin supplemented to 100 parts by weight, poured into the mixer successively, and stirred evenly (30 minutes ). The mixed master powder is jet milled, and then the host material and the material collected by the dust collector are mixed again for 10 minutes. Then according to the HG / T 2467.3-2003 standard, detect each quality index, detect that each index is qualified and namely make penoxsulam, cyhalofop-methyl and pendimethalin to...

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Abstract

The invention relates to a herbicide composition for paddy fields and application of the herbicide composition. The herbicide composition comprises active components including penoxsulam, cyhalofop-butyl and pendimethalin. The herbicide composition and the application have the advantages that combined ' sealing and killing' effects can be realized by the herbicide composition, the herbicide composition is long in control time and wide in herbicide controlling spectrum, and good effects can be realized; currently applied 'single-sealing and double-killing' weeding modes can be replaced by herbicides particularly when the herbicide composition is applied to weeding the paddy fields, accordingly, the chemical use frequencies and labor can be reduced, and the agricultural cost can be lowered;farmland surface pollution sources can be reduced, and accordingly the herbicide composition and the application are favorable for protecting ecological environments.

Description

【Technical field】 [0001] The invention belongs to the technical field of pesticides. More specifically, the present invention relates to a herbicide composition for paddy fields, and also relates to the use of the herbicide composition. 【Background technique】 [0002] With the advancement of agricultural science and technology, a light-weight cultivation method based on dry direct seeding and water direct seeding (hereinafter referred to as rice field) is replacing the traditional method of transplanting large seedlings. Practice has proved that light rice cultivation has the advantages of simplifying farming, saving water, saving It has the obvious advantages of labor, reducing agricultural costs, and high yield; practice also shows that the weeds in the field with light cultivation methods have complex phases, high density, long damage period, and are difficult to control. According to observations, field weeds in the light cultivation method have two weeding peaks, the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N39/04A01N33/18A01P13/00
Inventor 张长平
Owner 南京惠宇农化有限公司
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