Pesticide preparation for preventing and treating damage of weeds in crops and application

Abstract

The invention discloses a pesticide preparation for preventing and treating the damage of weeds in crops and application, and belongs to the technical field of weed killers. The pesticide preparation is characterized by comprising the following preparation steps: (1) weighing 65-85% of ginkgo fruit epicarp, 14-30% of a solvent and 1-8% of a pesticide adjuvant in percent by weight for spare use; (2) crushing and juicing the fresh ginkgo fruit epicarp in a juicing machine, then adding hydrochloric acid and alcohol according to the ratio, carrying out water-bath heating at the temperature of 45-65 DEG C, stirring for 15-35 minutes, carrying out ultrasonic treatment for 3-5 minutes, centrifuging for solid-liquid separation, and taking supernatant for spare use; and (3) adding sodium lignin sulfonate, lacticcasein and polyoxyvinylalkyl ether into a filtrate, stirring fully and mixing uniformly to obtain a final product. The pesticide preparation disclosed by the invention has the advantages that the production cost is low, the toxic effect is low, no residue is left, the safe effect to the crops is achieved, the weed killing effect is good, and the applicability to multiple worst weeds can be achieved; and the use method is simple, the dosage is low, the effect is good, and the problem of resistance in the application of the existing weed killer is solved.

Description

technical field [0001] The invention belongs to the technical field of herbicides, in particular to a pesticide preparation for preventing and controlling crop weeds and its application. Background technique [0002] Herbicides are currently the most beneficial tools in the control of weeds in farmland. They have the advantages of economy, high efficiency, time-saving, and labor-saving. Some varieties also have the effect of promoting plant growth. Herbicides can greatly increase labor productivity, and are an indispensable technology for realizing agricultural modernization, as well as a guarantee for high and stable agricultural yields. However, with the large-scale introduction and use of herbicides in cultivated areas, the emergence of weed resistance has become a difficult problem, and will eventually become a normal event in the process of weed control in farmland. Generally speaking, after 3 to 5 years of herbicide use, the control effect begins to decline, and weed ...

AI Technical Summary

Problems solved by technology

However, with the large-scale introduction and use of herbicides in cultivated areas, the emergence of weed resistance has become a difficult problem, and will eventually become a normal event in the process of weed control in farmland

Generally speaking, after 3 to 5 years of herbicide use, the control effect begins to decline, and weed resistance gradually emerges.

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