Method of producing rice seedling raising substrate with cow dung

Abstract

A method of producing a rice seedling raising substrate with cow dung belongs to the field of livestock breeding industry waste utilization and comprises following steps: (1) remove excessive moisture from the cow dung, and crushing the cow dung when the moisture content of the cow dung is 35-45% to obtain a cow dung powder material; (2) adding an active biological inoculant to the cow dung powder material and fermenting the cow dung at the environmental temperature of 18-22 DEG C and the fermentation temperature of 70-80 DEG C and under the fermentation humidity of 35-45% for 10-15 days; (4) adding plant ash accounting for 5% of the total weight of the cow dung powder material and an organic fertilizer accounting for 4% of the total weight of the cow dung powder material to increasing the content of organic substances in the fermented cow dung powder material to 40%; (5) adding the elements including nitrogen, phosphorus and potassium to increasing the total content of the nitrogen, the phosphorus and the potassium to 2%; and (6) performing acidity regulation to regulate the pH value to be 4.5-5.5 to obtain the rice seedling raising substrate. In the method, the cow dung is used as a raw material, so that the rice seedling raising substrate is low in production cost, is good in seedling raising quality, is low in plant diseases and insect pests rate, is free of environmental pollution, can be used for replacing seedling raising soil, can reduce damage on high-quality farmland and is wide in suitable range.

Description

technical field [0001] The invention belongs to the waste utilization technology of animal husbandry industry, and mainly relates to a method for producing rice seedling raising substrate by using cow dung. Background technique [0002] In recent years, the great development of my country's animal husbandry has created considerable economic benefits, but the disposal of manure with a total annual discharge of 3 billion tons has become an urgent problem to be solved, otherwise, it will seriously affect the construction of a new socialist countryside , can easily cause outbreaks and infectious diseases. Untreated livestock and poultry manure will produce stench and affect the air environment. The feces are exposed to the outside for a long time, and leachate will be produced inside. These untreated leachate seeps into the soil and poses a serious threat to the soil environment, and at the same time endangers the quality of groundwater. Untreated livestock and poultry manure c...

AI Technical Summary

Problems solved by technology

Untreated manure has high content of COD and ammonia nitrogen. If it is directly discharged into the field, it will cause damage to surface water quality and surface water pollution. At the same time, untreated livestock manure directly applied to crops will also cause pests and diseases. , Fermentation burning seedlings, poisonous gas hazards, soil oxygen deficiency, slow fertilizer efficiency and many other hazards