Preparation method of bio-organic fertilizer

Abstract

The invention discloses a preparation method of a bio-organic fertilizer which is prepared from nitrate mud, animal waste, flint clay, a rapeseed cake, phosphorus powder, plant ash and biogas fluid via combination and fermentation. The preparation process comprises the following steps: respectively airing the nitrate mud, the flint clay, the phosphorus powder, the rapeseed cake, the plant ash and the animal waste until the water content of the materials is lower than 12%, then respectively smashing the materials, mixing the materials and stirring uniformly to obtain a mixed material, mixing the biogas fluid with the mixed material to stir uniformly and adjusting the water content of the mixed material to 55-65%, and carrying out pile fermentation. The bio-organic fertilizer is wide in raw material source, low in cost, simple in preparation process, low in prepared product cost, comprehensive in nutrient element and good in fertilizer effect, and has the properties of increasing the organic matters of the soil, improving the soil structure, promoting the microbial activities of the soil, strengthening the fertilizer maintenance and fertilizer supply of the soil, increasing the crop output and improving the agricultural product quality.

Description

technical field [0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a preparation method of bio-organic fertilizer. Background technique [0002] At present, the fertilizers used in agricultural production mainly include: chemical fertilizers, refined organic fertilizers, biological organic fertilizers, biological bacterial fertilizers, and farmyard manures. [0003] Chemical fertilizers are fertilizers made by chemical methods that contain one or several nutrients needed for the growth of crops. Chemical fertilizers containing only one nutrient element that can be marked are called unit fertilizers, such as nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, and minor macro element fertilizers and trace element fertilizers. Chemical fertilizers that contain two or three of the three nutritional elements nitrogen, phosphorus, and potassium and whose content can be indicated are called compound fertilizers ...

AI Technical Summary

Problems solved by technology

[0011] (3) Bio-organic fertilizers can improve product quality; excessive application of chemical fertilizers leads to poor product quality;

[0018] (4) The nutrient content of bio-organic fertilizer is high; the refined organic fertilizer has caused nutrient loss due to high temperature treatment;

[0022] (2) Bio-organic fertilizer is odorless; farmyard manure has stench;

[0023] (3) The application of bio-organic fertilizer is convenient and uniform; the application of farmyard manure is inconvenient and the application of fertilizer is uneven

[0027] (3) The organic matter of bio-organic fertilizer itself is the living environment of functional bacteria, and it is easy to survive after being applied to the soil; while the functional bacteria of bio-organic fertilizer may not be suitable for some soil environments

[0032] The nutritional elements contained in the biological fertilizer prepared by the above process are not complete enough, and the fertilizer effect is poor.