Paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac

Abstract

The invention discloses a paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac. The paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac comprises the following components in percentage by weight: 12-14% of quinclorac, 0.5-2.0% of pyrazosulfuron ethyl, 2-4% of silicon dioxide, 9-11% of oil substances, 1.5-5% of surface active agents, 20-30% of solid core materials, 20-30% of additives and the balance of a filler. The paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac uses floating material glass beads, so that the drug granules can float on the water and can freely disperse under the actions of wind power and the auxiliaries; the dispersing agent is added so that the active ingredients of the medicament can be dispersed to the whole paddy field within short time; the pesticide effect is permanent, and the labor and the time are saved. Compared with a quinclorac wettable powder single dosage, the paddy field weed control macro-granule has the advantages that the application amount of quinclorac is reduced so that the residue of the quinclorac in the soil is reduced, and phytotoxicity probably generated to subsequent crops is avoided.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a paddy field herbicide granule containing pyrazosulfuron-methyl and quinclorac. Background technique [0002] As the society pays more and more attention to the safety of pesticide application and environmental protection, pesticide formulations that pollute the environment such as emulsifiable concentrates are gradually eliminated, and new formulations of pesticides with high efficiency, low toxicity, and environmental protection such as granules and water-dispersible granules are gradually promoted. From the late 1980s, Japan began to conduct research mainly on labor-saving weeding technology for paddy fields, and successfully released large-grain herbicides for paddy fields (JUMBO agent) in the 1990s. Domestically, the Plant Protection Institute of the Chinese Academy of Agricultural Sciences has developed a 5% insecticidal large granule, which is easy to use, saves labor ...

AI Technical Summary

Problems solved by technology

However, paddy field granules have high requirements on the dispersion performance of the preparation. Early paddy field granules did not use buoyant materials, and their specific gravity was heavier than water. The diffusion performance of the agent after application was poor. The pesticide concentration in the area is often higher than other areas of the paddy field, so it may cause phytotoxicity to the crops

Effervescent tablet herbicides can also float and spread on the water surface, but effervescent tablets require high and complex production processes, and the production cost is high. In addition, effervescent tablets are easy to absorb moisture and have very strict packaging requirements

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