Synergistic herbicidal composition for corn field and application thereof

Abstract

The invention discloses a synergistic herbicidal composition for a corn field and application thereof. The synergistic herbicidal composition comprises active ingredients and synergistic safeners. Theactive ingredients are composed of nicosulfuron, mesotrione, atrazine and thifensulfuron methyl. The synergistic safeners are composed of brassinolide compounds, tributyl phosphate, catechol, salicylic acid and potassium citrate. The advantages and disadvantages of the effective active ingredients of the invention are complementary, so the herbicidal spectrum of the synergistic herbicidal composition is enlarged, the herbicidal effect of the synergistic herbicidal composition is obviously improved, good synergistic effect is exerted in prevention and elimination of grassy weeds, broad-leaf weeds and other malignant weeds, especially in prevention and elimination of annual broad-leaf weeds and grassy weeds, and significant synergistic effect is produced; and the synergistic herbicidal composition has a fast herbicidal speed, delays the drug resistance generation of weeds, is highly safe to the corn field, improves labor efficiency, reduces manpower investment, lowers time cost and further increases corn production.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a cornfield synergistic herbicide composition and its application. Background technique [0002] my country is a major producer of corn in the world, with an annual planting area of ​​about 300 million mu. The Huanghuaihai region is the largest summer corn planting area in my country. Most of the cultivation methods are wheat-corn twice a year, and most of the planting forms are interplanting or iron stubble sowing. The main weeds in cornfields are annual gramineous weeds, such as: barnyardgrass, foxtail, crabgrass, wild oats, goosegrass, etc.; Purslane, bindweed, commelina, teff, green dogtail, amaranthus, spinach, solanum nigrum, lettuce, spinach, Cyperus, etc.; the harm of weeds can reduce the yield of corn 1 to 20%, and in severe cases, 30 to 50% of production will be reduced. [0003] The weeds in the corn field are extremely vigorous, and the seeds can ...

AI Technical Summary

Problems solved by technology

[0011] At present, herbicides in cornfields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in cornfields. If the effective period is too long, the dosage is large or the application is uneven, it will easily cause residual toxicity to the crops of the current season or the subsequent crops.

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