Method for preparing acid organic fertilizer by orientation fermentation of organic waste

Abstract

The invention provides a method for preparing an acid organic fertilizer by orientation fermentation of an organic waste. The method is characterized by comprising the following specific steps of: mixing bacillus subtilis, bacillus licheniformis, bacillus pumilus, saccharomyces cerevisiae, acetobacter aceti, trichoderma, aspergillus oryzae, nocardia and geotrichum candidum to obtain a first composite microbial bacteria agent; mixing the bacillus subtilis, the bacillus licheniformis, the saccharomyces cerevisiae, bacillus coagulans, lactobacillus acidophilus, lactobacillus plantarum, lactobacillus casei, pediococcus pentosaceus, the aspergillus oryzae, mucor racemosus and the nocardia to obtain a second composite microbial bacteria agent; adding the first composite microbial bacteria agentinto the organic waste and performing aerobic fermentation so as to form an intermediate fermentation product; and adding the second composite microbial bacteria agent into the intermediate fermentation product and performing anaerobic fermentation so as to form the organic fertilizer. The method has the advantages of capability of improving saline and alkaline lands, suitability for cultivation of acidophilous crops, effect of performing micro-ecological remediation on continuous cropping soil and low cost.

Description

technical field [0001] The invention relates to a method for directional fermentation of organic wastes to prepare acidic organic fertilizers. The pH value of the acidic organic fertilizers is about 6.5, which is more advantageous than ordinary organic fertilizers in improving saline-alkali land, and is also very suitable for acid-loving crops such as some flowers. , seedlings, tea, fruit trees, etc., belong to the field of biotechnology. Background technique [0002] Organic fertilizers play an important role in promoting crop growth, improving soil, and fertilizing soil fertility. The use of urban and rural organic waste such as poultry manure, crop straw, litter, kitchen waste, and food processing waste to process and produce organic fertilizer can achieve the goals of turning waste into wealth, eliminating organic pollution sources, recycling resources, and developing a low-carbon economy. [0003] Statistics show that nearly 500 million mu of salinized cultivated land...

AI Technical Summary

Problems solved by technology

Guo Xiaohua and others carried out the test of "Comparison of Effects of Acidic Organic Fertilizer on Heavy Salinity and Alkali Improvement"; the Chinese patent "A Saline-Alkaline Soil Improver and Its Preparation Method" (ZL00100436.0) discloses a kind of citric acid and other 14 kinds of organic acids. A method for preparing a saline-alkaline soil improver; Chinese patent "A saline-alkali soil improvement fertilizer and its preparation method" (ZL200510001737. 6) discloses a saline-alkali soil improvement fertilizer by sealing and fermenting organic matter mainly composed of soybean meal by compound microbial bacteria liquid. Fertilizer method; Chinese patent "Preparation Method of a Special Fertilizer for Saline-Alkali Land" (200610083425.9) discloses a kind of acidic organic matter formed by fermenting yeast cake, and then adding nitro humic acid produced from weathered coal or lignite to prepare special fertilizer for saline-alkali land Fertilizer method; Chinese patent "A Fully Enclosed Anaerobic Fermentation Biological Organic Fertilizer" (200710111509.3) discloses a fully enclosed anaerobic fermentation of household garbage, poultry manure, and crop straw (ratio: 7-8 : 0.5-1.5: 1.5-2.5) The method of preparing bio-organic fertilizer, but it is not stated that the prepared organic fertilizer is acidic