Biological weedicide granules and preparation method therefor

Abstract

The invention discloses solid granules of biological weedicide Jun Kekuo and a preparation method therefor. The solid granules are prepared through granulating a solid matrix, Sclerotium rolfsii mycelial masses, a binder and water which serve as raw materials; the weight ratio of the solid matrix to the Sclerotium rolfsii mycelial masses to the binder to the water is 30: (35-55): (0.4-12): (12-16); and the solid matrix is any one or more selected from rice straws, wheat straws, rape straws, cotton stalks, Solidago canadensis straws, cane straws, soybean straws, rice hulls, cotton seed hulls, garden deadwood and wood dust, and the binder is selected from white carbon black or glutinous rice flour. According to the solid granules and the preparation method therefor, mycelia are produced by using a liquid fermentation technology, so that the time consumed is shortened to more than half of the time for solid fermentation. A solid powdered material is coated with microbial pesticide active mycelia so as to form a granular formulation, thus, the storage period is prolonged, the drug effect is improved, and the consumption is reduced.

Description

technical field [0001] The invention belongs to the field of herbicide preparations, and relates to a solid particle of a biological herbicide juncoclad and a preparation method thereof. Background technique [0002] Bacteria is a biological herbicide based on Sclerotinia rosenbergii SC64, and its main biological active ingredient is the hyphae of SC64. The fungus was isolated from the pathogenic plant of Solidago canadensis by researchers from the Weed Research Office of Nanjing Agricultural University and applied for a patent. Studies have shown that most of the broad-leaved grasses of the fungus have strong pathogenicity, are safe to major crops such as rice, corn, wheat, and lawn grass, are easy to industrialized production, and have independent intellectual property rights. Therefore, it has a good prospect of being developed into a commercial biological herbicide. [0003] Biological pesticides have a short residual effect in the environment, are easy to decompose, a...

AI Technical Summary

Problems solved by technology

[0005] In the early stage, we have developed the technology of direct solid fermentation of crop straw and waste to produce solid particles containing mycelia. However, the production cycle of solid fermentation is long and generally takes 7-10 days or even longer. Due to the loose growth of mycelium, the solid particles Inhomogeneity leads to high actual use per unit area in the field, which increases the cost of technical products. In addition, mycelium floats on the surface, and the storage period of products is significantly shortened. Not using commercialization also hinders the practical application value of the technology

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