Pharmaceutical weeding composition and preparation thereof

Abstract

The invention discloses a pharmaceutical weeding composition and a preparation thereof. The pharmaceutical weeding composition comprises the following effective constituents in parts by weight: 10-150 parts of picloram, 300-700 parts of glyphosate and 1-100 parts of carfentrazone. The dosage forms of the pharmaceutical weeding composition are wettable powder, soluble powder, soluble granules, water dispersible granules and microemulsion. The pharmaceutical weeding composition has the advantages that the compounded composition has an obvious synergistic effect, the weeding speed is increased, the herbicide controlling spectrum is expanded, and the dosage and use frequency of herbicides are remarkably reduced. The pharmaceutical weeding composition is suitable for preventing and treating annual and perennial weeds such as cogongrass, bermuda grass, crab grass, diranopteris dichotoma and railway beggarticks herb.

Description

Technical field [0001] The invention relates to the field of pesticides and chemical fertilizers, and in particular to a herbicidal pharmaceutical composition and its preparation. Background technique [0002] Amclopyridine is also called picloram, its common English name is picloram, its chemical name is: 4-amino-3,5,6-trichloropyridinecarboxylic acid, its CA registration number: 1918-02-1, molecular formula C 6 H 3 C l3 N 2 O 2 , with a molecular weight of 291.2, is a pyridine herbicide that can be rapidly absorbed and conducted through leaves and roots. It mainly acts on nucleic acid metabolism, and causes malformation of the chloroplast structure and other organelles, interferes with protein synthesis, and acts on meristem activities, etc. , eventually leading to plant death. Most broadleaf crops except cruciferous crops are sensitive to this product. [0003] Glyphosate is also known as Roundup and Zhencaoning, its common English name is glyphosate, CA registratio...

AI Technical Summary

Problems solved by technology

[0007] Imperata, bermudagrass, crabgrass, mangospermia, and ghost needle grass are common weeds in various crop fields and non-cultivated land. Using amiloride, glyphosate, and mefentrazone alone cannot control these weeds at the same time. Weeds, and in practical applications, the weeding speed of using amiloride and glyphosate alone is not only slow, but also easily affected by bad weather such as low temperature and rainfall, which limits the efficacy of the medicine

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