Water retention type organic fertilizer prepared from swine waste and preparation method thereof

Abstract

The invention relates to an agricultural organic fertilizer and the preparation method, belongs to the native swine waste processing technology field. The fertilizer comprises swine waste, polyacrylamide and denatured starch by the contents of 85-99%, 0.5-10% and 0.5-10%. The preparation process comprises: (1) adding EM inocula and water into swine waste, and mixing uniformly, wherein, the water content is 35-45%, and the using amount of the EMinocula is 0.1-0.2% of the swine waste by weight; (2) piling up the mixed material for decomposing the swine waste; (3) drying the decomposed swine waste by sun and crushing; (4) adding polyacrylamide and denatured starch into the swine waste according to the content requirement, and mixing uniformly; (5) pressuring the mixed material into granules by machine and obtaining the finished product. The organic fertilizer in the invention removes the stink of the native swine waste, kills the ovums such as pathogenic bacteria, enlarges the application range of the swine waste as organic fertilizer, facilitates transportation; and by adding the water retention material polyacrylamide and denatured starch, the invention enables the fertilizer to have water retention function which has the effects of drought resistance, seedling protection and growth promotion.

Description

technical field [0001] The invention relates to an agricultural organic fertilizer and a preparation method, in particular to a processing technology for raw pig manure. Background technique [0002] Pig manure is a well-known farm organic fertilizer, but the original pig manure not only has a strong smell and is difficult to transport, but also contains a large number of pathogenic bacteria, parasites and pest eggs, which limits its use to some extent. In the prior art, the raw pig manure is usually simply stacked in the open air, and the manure in the pile cannot be fully decomposed, nor can the pathogenic bacteria, insect eggs, grass seeds, etc. in it be killed. Contents of the invention [0003] The object of the present invention is to provide a water-retaining organic fertilizer made from pig manure and a preparation method thereof, aiming at the problems existing in the original pig manure. [0004] The purpose of the present invention is achieved in the following ...

AI Technical Summary

Problems solved by technology

[0002] Pig manure is a well-known farm organic fertilizer, but the original pig manure is not only smelly and difficult to transport, but also contains a large number of pathogenic bacteria, parasites and pest eggs, which limits its use to some extent

In the prior art, simple open-air stacking of raw pig manure is usually used, and the manure in the pile cannot be completely decomposed, nor can it kill the pathogenic bacteria, insect eggs, grass seeds, etc.