Microbial organic fertilizer for preventing and controlling grape downy mildew and preparation method thereof

Abstract

The invention discloses a microbial organic fertilizer for preventing and controlling grape downy mildew. The microbial organic fertilizer is prepared from the following raw materials: chicken manure, mushroom dreg, yeast waste liquor, saw dust, rice husk, astragalus, selfheal, patrinia, dandelion, mangnolia officinalis, compound fermentation strain, compound fermenting enzyme and a compound trace element. The invention also discloses a preparation method of the microbial organic fertilizer for preventing and controlling the grape downy mildew. The preparation method comprises the steps of multistage fermentation, ageing, and the like. The microbial organic fertilizer for preventing and controlling the grape downy mildew can effectively control pseudoperonospora cubensis of grape plants and fruits, effectively inhibit harmful bacteria and also has certain prevention effect on healthy grape plants in avoidance of infection of downy mildew; besides, usage amounts of pesticide and chemical fertilizer also can be reduced, so that the microbial organic fertilizer disclosed by the invention has the advantages of preserving the ecological environment and improving resource re-utilization rate and has good economic benefit and social benefit.

Description

technical field [0001] The invention relates to the field of pesticides and chemical fertilizers, in particular to a microbial organic fertilizer for preventing and controlling grape downy mildew and a preparation method thereof. Background technique [0002] Grape downy mildew is caused by the infection of Flagellate subphylum, Oomycetes, Peronomycetes, and Plasmopara. The fungus is an obligate parasite that only harms grapes. Under open field cultivation conditions, the fungus mainly survives the winter as oospores in fallen leaves. In warm winter regions, the mycelium attached to buds and leaves hanging on trees can also survive the winter. Its oospores can survive in the soil for about 2 years along with the rotting leaves. In the spring of the following year, when the temperature reaches 11°C, oospores germinate in small water droplets, produce germ tubes, and form sporangia. The sporangia germinate to produce zoospores, which spread to the green tissue of the host by...

AI Technical Summary

Problems solved by technology

Although it has a certain effect on increasing production and income, long-term use will cause soil acidification and compaction, resulting in poor water retention, fertilizer retention, and air permeability of the soil, and less organic matter; secondly, it will cause excessive accumulation of harmful chemical residues in the soil. Being directly absorbed by plants has caused heavy metals in crops to seriously exceed the standard, affecting their growth and development

Due to poor air permeability after soil compaction, some fertilizers and pesticides are discharged into rivers and lakes or residual soil and crops, reducing the utilization rate of fertilizers, not only causing waste of resources, but also destroying the agricultural ecological environment and endangering the safety of humans and animals.