Dairy manure biological organic fertilizer and preparation method thereof

Abstract

The invention discloses a dairy manure biological organic fertilizer which is prepared from dairy manure, straws, a compound culture and a compound fermentation enzyme. The invention also discloses a preparation method of the organic fertilizer. The preparation method comprises the following steps: crushing and uniformly mixing dehydrated dairy manure and straws and performing pile fermentation; uniformly spraying the compound culture and the compound fermentation enzyme for fermentation; introducing oxygen at a fixed time; detecting the temperature of the pile fermenting fermented material; turning the pile fermenting fermented material; and then aging the fermented material to obtain the organic fertilizer. By adopting various microorganisms to ferment the dairy manure to produce the biological organic fertilizer, pathogenic bacteria can be killed and quickly deodorized by means of a fermenting action of the microorganisms; then, the biological organic fertilizer disclosed by the invention is rich in nutritional components needed for growth and development of crops, and can also serve as a soil conditioning agent, so that phenomena of soil agglomeration and salinization are effectively improved. The dairy manure biological organic fertilizer disclosed by the invention is fast and full to decompose, the fermentation time is shortened, the production cost is favorably lowered, and industrial production is facilitated.

Description

Technical field

[0001] The invention relates to the technical field of agriculture, in particular to a dairy cow manure biological organic fertilizer and a preparation method thereof. Background technique

[0002] With the rapid development of the industrialization of my country’s dairy industry and the expansion of the scale of dairy cow production, the dairy industry provides a large amount of high-quality, safe raw milk for dairy processing, meets people’s nutritional and health requirements, and promotes social and economic development. Organic solid wastes and high-concentration organic wastewater, among which cow manure is rich in organic matter and plant nutrients, is a good organic fertilizer resource. However, a large amount of manure is returned to the field at will without any treatment. Due to the unreasonable nutrient combination, some nutrients are wasted. Secondly, the direct application of a large amount of nutrients and various elements of manure can also cause th...

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