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A kind of corn field herbicide

A herbicide and cornfield technology, applied in the field of pesticides, can solve the problems of insufficient weeding, increase labor and production costs, and affect the effect, so as to achieve good weeding effect, reduce crop damage, and good land closure effect

Active Publication Date: 2018-05-08
SHANDONG LVBANG CROP SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: sensitive to sweet corn, sticky corn, and Denghai series corn, not safe enough
[0007] At present, the herbicides of corn field closure type are mainly concentrated on the compound suspoemulsion of amides and atrazine, and the usage of each component is lower than that when used alone, so the problem of phytotoxicity is reduced to a certain extent. However, for the already For the unearthed weeds, farmers generally still need to mix paraquat water solution in barrels to kill the unearthed weeds. Because paraquat loses its effect when it meets the soil passivation, it has no effect on the emergence of corn seedlings.
At present, this kind of products also brings the following disadvantages: 1) Amides are prone to phytotoxicity or are affected by soil moisture; 2) Weeds are likely to re-emerge after raining, and farmers can only use drugs again, which increases labor and production costs. ;3) Paraquat water solution will be banned in the future, and if glyphosate water solution is used instead, sometimes it will cause damage to the newly unearthed seedlings of corn
[0008] At present, the compound herbicides of nicosulfuron, mesotrione and atrazine used as post-emergence herbicides in cornfields have the following deficiencies: 1) There are some phytotoxicity problems. Everyone knows that nicosulfuron, mesotrione and atrazine Grassone has different degrees of phytotoxicity on corn; 2) When there is rain in the later stage, some weeds will still emerge or turn green, and the weeding is not thorough enough, and the corn has more than 12 leaves at that time, and it is very inconvenient for farmers to weed

Method used

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  • A kind of corn field herbicide
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  • A kind of corn field herbicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: a herbicide (suspension concentrate) for cornfield fiefdom, its active ingredient and content are: 38% nicosulfuron·atrazine·isoxaflutole (4:28:6), including the following weight The following components: (based on 100Kg, the same below)

[0044] Nicosulfuron 4Kg, Atrazine 28Kg, Isoxaflutole 6Kg, Polyoxyethylene ether carboxylate 3Kg, Styroylphenol polyoxyethylene polyoxypropylene ether 3Kg, Xanthan gum 1Kg, Ethylene glycol 2Kg, Water is added to 100Kg.

[0045] Preparation method: the above weight of nicosulfuron, atrazine, isoxaflutole, polyoxyethylene ether carboxylate, phenylethylphenol polyoxyethylene polyoxypropylene ether, xanthan gum, ethylene glycol and Water is fully dispersed and mixed, the dispersion time is about 40min, and the dispersion speed is 2000r / min. After mixing evenly, it is sanded by a sand mill for 2-3 hours to obtain a suspending agent. The pressure of the sand mill is ≤0.2MPa, and the material flow rate during grinding is 350-40...

Embodiment 2

[0047] Embodiment 2: A kind of herbicide (suspension concentrate) for cornfield fiefdom, its active ingredient and content are: 14% nicosulfuron·atrazine·isoxaflutole (1.5:12:0.5), including the following weight The following components: (based on 100Kg, the same below)

[0048] Nicosulfuron 1.5Kg, Atrazine 12Kg, Isoxaflutole 0.5Kg, Polyoxyethylene ether carboxylate 2Kg, Phenylphenol polyoxyethylene polyoxypropylene ether 1Kg, Xanthan gum 0.2Kg, Ethylene glycol Alcohol 1Kg, water make up to 100Kg.

[0049] The preparation method and usage method are the same as in Example 1.

Embodiment 3

[0050] Embodiment 3: a herbicide (suspension concentrate) for cornfield fiefdom, its active ingredient and content are: 54% nicosulfuron-atrazine-isoxaflutole (6:38:10), including the following weight The following components: (based on 100Kg, the same below)

[0051] Nicosulfuron 6Kg, Atrazine 38Kg, Isoxaflutole 10Kg, Polyoxyethylene ether carboxylate 5Kg, Styroylphenol polyoxyethylene polyoxypropylene ether 4Kg, Xanthan gum 1.5Kg, Ethylene glycol 3Kg , water supplemented to 100Kg.

[0052] The preparation method and usage method are the same as in Example 1.

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Abstract

The invention relates to the technical field of pesticides, and in particular discloses a cornfield herbicide. The active ingredient of the herbicide for cornfield fiefdom consists of nicosulfuron, atrazine and isoxaflutole, and the weight ratio of said nicosulfuron, atrazine and isoxaflutole is 1.5-6. : 12~38: 0.5~10. The composition of the herbicide for corn field sealing of the present invention is reasonable, the dosage is low, the herbicidal spectrum is wide, it is not easy to produce drug resistance, it is safe for crops, and has synergistic control effect. The weeding effect and the effect of the herbicide for secondary fiefdom greatly reduce the burden on farmers, save time and cost, and have extensive economic, social and environmental benefits.

Description

(1) Technical field [0001] The invention relates to the technical field of pesticides, in particular to a cornfield herbicide. (2) Background technology [0002] Corn is the largest economic crop in my country, and effective control and control of weeds in cornfields is one of the main methods to increase corn yield. For the main weeds in the corn field: velvetleum, quinoa, Kochia, pigskin, nightshade, amaranthus, willow-leaved Polygonum, ghost needle grass, purslane, chickweed, fennel, cocklebur, and amaranth Annual broad-leaved weeds such as Sorrel, Sorrelleaf, Polygonum, and Popona, and annual gramineous weeds such as crabgrass, barnyardgrass, goosegrass, daughter of a daughter, giant foxtail, and foxtail. Previously, amide herbicides were mainly used Such as acetochlor, alachlor, butachlor, metolachlor, etc. are used for control, but due to long-term continuous use, weeds develop resistance, and malignant weeds such as bermudagrass and paspalum have appeared , Bala gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/70A01N43/80
Inventor 王云辉刘志文袁军李静静
Owner SHANDONG LVBANG CROP SCI CO LTD