Complex formulation herbicide for protective cultivation of corn field

Abstract

The invention relates to a complex formulation herbicide for protective cultivation of corn field, which is characterized in that the raw materials concretely comprises the following components by weight ratio: atrazine 10-15%, bromo benzonitrile 4-6%, pendimetalin 12-16%, thifensulfuron methyl 2%-4%, methanol 20-35%, Runong 160 5-8%, glycerol 1-4%, silicone oil 0.02-0.06%, sodium alginate 0.5-0.8% and deionized water which is added up to 100%. The herbicide has the advantages of good weeding effect, wide weeding spectrum, harmless and safety to the protective cultivation of corn field, etc.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a compound herbicide for protective tillage corn fields Background technique [0002] Conservation tillage has played a huge role in improving agricultural work efficiency and liberating agricultural labor. With the expansion of conservation tillage and the extension of time, some regional weed damages have occurred and expanded rapidly, and some weed damages have become increasingly serious. Compared with traditional tillage, conservation tillage eliminates the means of dealing with weeds, and the surface is covered with straw or straw residues, so that the occurrence and damage of weeds in conservation tillage are increasing. Seriously, it brings certain difficulties to traditional chemical weeding, mechanical or manual weeding. It stands out in the following aspects: [0003] 1. The weeds in the farmland are increasing, the growth is uneven, and the occurrence of weeds i...

AI Technical Summary

Problems solved by technology

[0005] 3. The increase in the amount of herbicides has increased the degree of environmental pollution to a certain extent;

[0006] 4. Serious occurrence of weeds in conservation tillage farmland reduces grain production and lowers commerciality

In areas where both weeds are serious, using two targeted herbicides separately will increase the cost, and the dosage is difficult to control, which may even cause safety problems

[0025] 2. Some herbicides have been used for too long, leading to gradual resistance to them during the evolution of weeds, so their original herbicidal effects are decreasing or even disappearing year by year, such as atrazine, etc.

[0026] 3. Although there is a combination of two or more herbicides in the prior art, this combination is only to achieve a wider herbicidal spectrum, that is, a simple herbicide that will kill broadleaf grass and grass weeds Mixing does not take into account the synergistic effects of the combination of two or more herbicides, such as increased weeding efficiency, reduced herbicide dosage, safety-related issues, etc.

[0027] 4. The use of some herbicides will cause phytotoxicity to subsequent crops

The control effect on gramineous weeds is better than broadleaf weeds, and the effect on perennial weeds is poor

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