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Weeding composition

A herbicidal composition and a technology for the composition are applied in the field of herbicidal compositions for cotton crops, and can solve the problems of variation, single herbicide, and aggravated succession of weed communities with resistance to weeds.

Inactive Publication Date: 2012-02-08
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pendimethalin is more effective in controlling gramineous weeds than broad-leaved weeds, but less effective in perennial weeds
[0009] The herbicides used in cotton fields are mostly soil treatment herbicides, mainly pendimethalin, trifluralin and acetochlor. With the continuous application of pendimethalin and other herbicides for a long time, the The number of resistant weeds is increasing year by year, and due to the selectivity of pendimethalin and other herbicides on weeds, the number of sensitive weeds has decreased, while the number of insensitive weeds such as nightshade, ash quinoa, barnyardgrass, amaranth, and chrysanthemum The increase in the number of hemp and other species has caused obvious changes in the weed community
The purpose of this study is to solve the problem that the current cotton field soil treatment herbicide is single, the herbicide effect is reduced, and the weed resistance and weed community succession are increasing year by year

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: 45% pendimethalin + oxadiazone suspension

[0048] Pendimethalin 33%

[0049] Oxadiazone 12%

[0050] Sodium methylnaphthalenesulfonate formaldehyde condensate 10%

[0051] Xanthan Gum 1%

[0052] Bentonite 1%

[0053] Glycerol 5%

[0054] Water to make up to 100%

[0055] The active components, dispersant, wetting agent and water are mixed uniformly according to the proportion of the formula, and after grinding and / or high-speed shearing, 45% pendimethalin + oxadiazone suspension concentrate is obtained.

[0056]

Embodiment 2

[0057] Example 2 15% pendimethalin + oxadiazone wettable powder

[0058] Pendimethalin 2.5%

[0059] Oxadiazone 2.5%

[0060] Sodium Lauryl Sulfate 2%

[0061] Sodium lignosulfonate 5%

[0062] Silica 10%

[0063] Kaolin supplemented to 100%

[0064] The active ingredients, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by an ultrafine grinder, a 5% pendimethalin + oxadiazon wettable powder can be obtained.

[0065]

Embodiment 3

[0066] Embodiment 3 40.4% pendimethalin + oxadiazone aqueous emulsion

[0067] Pendimethalin 40%

[0068] Oxadiazone 0.4%

[0069] N-Methylpyrrolidone 15%

[0070] Calcium dodecylbenzenesulfonate 5%

[0071] Farm milk 600# 5%

[0072] Water to make up to 100%

[0073] Add the original drug, solvent, and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to obtain a water phase; mix the oil phase with the water phase under high-speed stirring to obtain a 40.4% bismuth Mevalazine + Oxadiazone Water Emulsion.

[0074]

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Abstract

The invention belongs to the field of pesticide weedicide and in particular relates to a weeding composition for cotton crops. The weeding composition contains active ingredients, namely pendimethalin or trifluralin and oxadiazon. The weight ratio of the pendimethalin to the oxadiazon is 100:1 to 1:100. The mass percentage content of the pendimethalin and the oxadiazon in the composition is 5-80%, preferably 10-60%. The mass percentage content of the trifluralin and the oxadiazon in the composition is 5-80%, preferably 10-60%. The dosage form of the composition can be water dispersible granules, missible oil, wettable powder, suspending agents, coating granules, extrusion granules, microcapsules, suspending agents and emulsion in water. The weeding composition is used for preventing and curing weeds in useful crops, weeds in cotton fields and nightshades, glaucum, cockspur grass, acalypha australis and Tong hemp weeds in the cotton fields.

Description

technical field [0001] The invention belongs to the field of pesticide herbicides, in particular to a herbicide composition for cotton crops. Background technique [0002] Cotton is the main economic crop in my country, and effective control of weeds in cotton fields is one of the important measures to improve cotton yield and quality. There are many kinds of weeds in cotton fields, which compete with crops for glory, fertilizer and water, and can also break through the mulch, which is an important factor causing crop yield loss. [0003] Pendimethalin belongs to dinitroaniline herbicides. Pendimethalin is a selective herbicide that acts as an inhibitor of cell division by inhibiting microtubule assembly. Pendimethalin is an excellent selective herbicide for upland crops, which can be widely used in corn, soybean, peanut, cotton, direct-directed upland rice, potato, tobacco, vegetables and other crop fields for weeding. Pendimethalin is used to control annual grass weeds,...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N33/18A01P13/00C05G3/02C05G3/60
Inventor 罗昌炎刘智忠刘建华陈绍娥吴一凡冯秀珍谭瑞成殷爱云
Owner JIANGSU ROTAM CHEM
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