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Corn post-emergence complex weedicide

A technology for herbicides and corn seedlings, applied in the field of pesticides, can solve problems such as uncontrollable weed damage, and achieve the effects of remarkable herbicidal effect, environmental friendliness and good application prospects.

Inactive Publication Date: 2010-11-24
ANHUI FENGLE AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it takes a long time for some perennial weeds in the case of low temperature, and the weeds are allowed to grow after application, and the harm of weeds cannot be controlled

Method used

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  • Corn post-emergence complex weedicide
  • Corn post-emergence complex weedicide
  • Corn post-emergence complex weedicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: prepare the oil suspension concentrate of compound herbicide of the present invention (nicosulfuron-methyl: fluoxalic acid=1: 1)

[0021] 7% nicosulfuron-flufenoxalic acid oil suspension concentrate, 7% refers to the percentage of the two active components of nicosulfuron and flufenoxalic acid in the total weight. Take 3.5kg of nicosulfuron, 3.5kg of fluoxalic acid, 8kg of Pluronic125, 5kg of propylene glycol, 8kg of xanthan gum, 1kg of methylated vegetable oil, and make up to 100kg of water. The oil suspension is obtained through full mixing and preparation, ball milling, adjustment and packaging.

Embodiment 2

[0022] Embodiment 2: Preparation of the wettable powder of the compound herbicide of the present invention (nicosulfuron: oxalic acid = 4: 3)

[0023] 70% nicosulfuron-flufenoxalic acid wettable powder, 70% refers to the percentage of the two active components of nicosulfuron and flufenoxalic acid in the total weight. Take 40kg of nicosulfuron, 30kg of oxalic acid, 6kg of dispersant NNO, 3kg of wetting agent K12, and white carbon black to make up to 100kg. Wettable powder is obtained through thorough mixing, jet milling and mixing.

Embodiment 3

[0024] Example 3: Preparation of water-dispersible granules of compound herbicides according to the present invention (nicotimuluron: oxalic acid = 7: 10)

[0025] 85% nicosulfuron·flufenoxalic acid water-dispersible granule, 85% refers to the percentage of the two active components of nicosulfuron and flufenoxalic acid in the total weight. Take 35kg of nicosulfuron, 50kg of oxalic acid, 7kg of D-425, 5kg of EFW, 5kg of ammonium sulfate, 2kg of polyethylene glycol, and kaolin to make up 100%. After thorough mixing, jet milling, mixing, granulation, drying and screening Water-dispersible granules were obtained.

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Abstract

The invention relates to the technical field of pesticides and discloses a corn post-emergence complex weedicide. The corn post-emergence complex weedicide comprises two active ingredients of nicosulfuron and flumiclorac-pentyl, wherein the weight ratio of the nicosulfuron to the flumiclorac-pentyl is 1:0.75-1.5; and preferably, the complex weedicide comprises 5 to 85 mass percent of the nicosulfuron and the flumiclorac-pentyl. The complex weedicide has the advantages of capacity of preventing and removing annual grassy weeds in a corn field, capacity of preventing and removing broadleaf weeds and cyperus rotundus, obvious weeding effect, obvious synergistic action, capacity of preventing and removing weeds in the whole growth period of crops by one-time pesticide application and no influence on aftercrops. The complex weedicide is an ideal weedicide.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a postemergence compound herbicide for corn. Background technique [0002] Corn is an important food crop as well as an important feed crop. In recent years, with the development of industries such as animal husbandry, food processing, wine making and biodiesel, the market demand for corn has continued to increase. In 2009, my country's corn planting area reached 28.5 million hectares, ranking third after rice and wheat planting area, and there is still an increasing trend. [0003] Weeds in cornfields are common and of various types. In Huanghuaihai summer corn weeds occurred seriously, and the area of ​​weeds accounted for 82% to 96% of the planting area in this area, of which the area of ​​moderate damage was 64% to 66%. Maize seedlings are most seriously damaged by weeds, and weeds have little effect on yield in the middle and late stages of corn growth. When maize at ...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N37/36A01P13/00
Inventor 龚国斌陈克付程小虎
Owner ANHUI FENGLE AGROCHEM