Nicosulfuron terbuthylazine compound weedicide for corn field

A technology of nicosulfuron and terbutyzine, applied in the field of pesticides, can solve the problems that the control effect of weeds is not as good as that of nicosulfuron, the control effect is not ideal, and the crops are easy to be damaged, so as to reduce the control cost and dosage , the effect of improving safety

Active Publication Date: 2008-03-19
中科荣威生物药业(河北)集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Production practice has proved that the control effect has been improved to a certain extent through compounding, and the cost has been reduced, but the control effect is still unsatisfactory, and the residual effect of atrazine in the soil is relatively long. The residual amount is easy to damage the subsequent crops,

Method used

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  • Nicosulfuron terbuthylazine compound weedicide for corn field
  • Nicosulfuron terbuthylazine compound weedicide for corn field
  • Nicosulfuron terbuthylazine compound weedicide for corn field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1: 70% nicosulfuron-terbuthine oil suspension concentrate (1:15)

[0060] Raw material dosage (parts by weight)

[0061] Nicosulfuron 4.59

[0062] Terbutyzine 67.65

[0063] Emulsogen M 3

[0064] DBS-Ca2

[0065] Nongru No. 1601 3

[0066] Arnox BP series 0.2

[0067] Alkyl Phosphate 1

[0068] soybean oil 8.56

[0069] canola oil 10

[0070] According to the above formula, first weigh the active ingredients nicosulfuron, terbutyzine, Arnox BP series, soybean oil, and rapeseed oil, transfer them all into a sand mill, then add 1 part of Emulsogen M, 1 part of DBS-Ca and 1 part of Nongru No. 1601, after grinding to a certain fineness in a sand mill (the fineness should be greater than or equal to 98% of the particles passing through the 0.043mm sieve), the material is transported to the storage tank, and transferred to Homogeneous mixer, and then add the remaining additives, after uniform dispersion through the homogeneous mixer, the product can be p...

Embodiment 2

[0071] Embodiment 2: 72% nicosulfuron-terbuthine dry suspension concentrate (1:16)

[0072] Raw material dosage (parts by weight)

[0073] Nicosulfuron 4.44

[0074] Terbutyzine 69.86

[0075] Pulp waste liquid (calculated as solid matter) 22.8

[0076] Xanthan gum 0.9

[0077] Armal 22 2

[0078] The pulp waste liquid is pumped into the metering tank for metering, and its density and solid content are measured, so that the solid content reaches 22.8 grams, and it is added to the modulation dispersion pot. Put steam into the jacket, heat and concentrate under constant stirring until the solid content reaches about 60%, then add nicosulfuron, terbuthylazine, xanthan gum, Armal 22, dissolve the two agents at 180°C, and stir Turn off the steam for 1.5 hours, pour cold water into the jacket for cooling, and disperse under strong stirring. When the temperature of the material drops to 40-50°C, transfer the material to the material trough at the lower part of the drum of the dr...

Embodiment 3

[0079] Embodiment 3: 74% nicosulfuron-terbuthine wettable powder (1:16)

[0080] Raw material dosage (parts by weight)

[0081] Nicosulfuron 4.57

[0082] Terbutyzine 71.80

[0083] Sodium lignosulfonate 4

[0084] Sodium dodecylbenzenesulfonate 3

[0085] White carbon black 6.63

[0086] Kaolin 5

[0087] Bentonite 5

[0088] First mix 6.63g of white carbon black, 5g of kaolin and 5g of bentonite for coarse pulverization, and successively dry and cool through a drum dryer and a cooler; weigh the active ingredient, coarsely pulverize it through a pulverizer, and coarsely pulverize the carrier Mix it with the original drug, add the above-mentioned auxiliary ingredients, grind it with a Raymond machine, and then mix it evenly with a pear-knife mixer. wettable powder.

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Abstract

The invention relates to a nicosulfuron terbuthylazine compound corn field herbicide, which comprises the following weight percentage: 70-80 percent of the invention is the nicosulfuron and terbuthylazine active ingredient and the rest is an additive; wherein, the weight percentage of the nicosulfuron and terbuthylzine is 1:15-20. The invention adopts an additive solid carrier, a wetting agent and a dispersing agent, etc. commonly used in the pesticide field and can be made into compound herbicide in the form of wettable powder, water dispersible granule, dry suspension and oil suspension, etc. The invention has the advantages that the herbicide has significant synergistic action and can effectively prevent and remove the main gramineae weed and broad-leaved weed, etc. in corn field, meanwhile, total control effect is improved by 4.3-35.9 percent and control rate of the main broad-leaved weed in corn field is up to 100 percent in particular; safety on crop is improved and yield increase of the corn is up to 15 percent; the terbuthylazine which has smaller phytotoxicity on succeeding crop is adopted as compound agent and then phytotoxicity is reduced; control cost is reduced by 22.2 percent.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicide for cornfields, more specifically, it relates to a compounded herbicide for cornfields with nicosulfuron-terbuthyzine. Background technique [0002] At present, among the herbicides in cornfields, rimsulfuron-methyl (also known as rimsulfuron-methyl, Baocheng) and nicosulfuron-methyl are commonly used to control weeds in the sulfonylurea drugs, and rimsulfuron-methyl and nicosulfuron-methyl are mainly used It is used to control grassy weeds such as barnyardgrass, goosegrass, crabgrass, and foxtail in corn fields, broad-leaved weeds such as purslane, retroflexus, amaranthus, and Polygonum, and sedge weeds. Absorption and conduction is the principle of weeding, so the action cycle is long, the effect is slow, and the effect on weed removal is not good, and the sulfonylurea herbicide has strong selectivity, and the sensitivity to different crops is quite different, ...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N43/66
Inventor 王贵启许贤张宏军樊翠芹李秉华苏立军祁志尊
Owner 中科荣威生物药业(河北)集团有限公司
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