Method for producing organic fertilizer by using livestock manure

Abstract

The invention discloses a method for producing organic fertilizer by using livestock manure. The method comprises the following steps: S1, mixing livestock manure and crop straws according to a givenweight ratio; S2, before a compost mixture is placed into a reaction tank, adding a given amount of water into the compost mixture; and S3, placing the compost mixture into the reaction tank, performing the spontaneous reaction of the compost mixture for one week in a closed state of the reaction tank; placing a given amount of oxygenation agent on the bottom of the compost mixture in the reactiontank about every two weeks, and enabling the compost mixture to continuously perform the aerobic reaction; after the temperature in the reaction kettle is stable, stopping placing the oxygenation agent into the reaction tank; and after the feeding of the oxygenation agent is stopped, keeping the closed state of the reaction tank for one week. According to the method of the invention, not only canthe anaerobic decomposition and degradation reaction be performed for the compost mixture, but also the oxygenation agent is placed into the reaction tank to perform the aerobic decomposition and degradation reaction, the decomposition speed for converting the organic matters into organic fertilizer can be increased, and the fertilizer effect conversion rate can be increased.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a method for producing organic fertilizers by utilizing poultry manure. Background technique [0002] With the vigorous development of industry and agriculture, various organic wastes including manure, straw and municipal solid waste are produced in large quantities, and these organic wastes are rich in fertilizer elements and are high-quality raw materials for making organic fertilizers. However, if organic fertilizers that have not been fully decomposed are applied to farmland soil, they will not be able to produce the nutrients needed for crop growth, and will also have adverse effects on crop growth. This is because the fertilizer effect of organic fertilizer is to make the organic state The nitrogen, phosphorus, and potassium elements in organic fertilizers undergo mineralization and transform into effective states, and the effective nitrogen, phosphorus, an...

AI Technical Summary

Problems solved by technology

This method uses the bottom space of the pig house to collect raw manure and raw urine. Although the production of organic fertilizer after solid-liquid separation is greatly improved, the direct treatment of pig manure in the pig house will cause secondary pollution to the environment.

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