Liquid organic fertilizer and preparing method thereof

Abstract

The invention discloses a liquid organic fertilizer and a preparing method thereof. The liquid organic fertilizer is prepared from pig urine, chicken manure, wheat straw, corncob, cassava residues, bagasse and a microbial agent. The preparing method includes the steps that the wheat straw and the corncob are mixed to be smashed, and a mixture C is obtained; the pig urine, the chicken manure, the cassava residues, the bagasse and the mixture C are mixed to be even, then the microbial agent is added, and a fermentation substrate is obtained; the fermentation substrate is poured into a fermentation pond, and is subjected to first-stage fermentation and second-stage fermentation, and fermentation products are obtained; the fermentation products are pressed and filtered, and liquid D and solidE are obtained, and the liquid D and solid washing liquid F are mixed to obtain the liquid organic fertilizer. The liquid organic fertilizer is fully fermented, the crop absorption rate is high, and the liquid organic fertilizer can be used as a leaf fertilizer and an additional fertilizer.

Description

technical field [0001] The invention relates to the field of fertilizer preparation, in particular to a liquid organic fertilizer and a preparation method thereof. Background technique [0002] In recent years, the input of chemical fertilizers has increased significantly. Due to the single type of nutrients contained in chemical fertilizers, long-term application will easily cause nutrient imbalance in soil and food, cause nutrient loss, pollute the environment, and improper application will reduce the quality of agricultural products. Long-term large-scale application of chemical fertilizers will inhibit the activities of soil microorganisms, resulting in a decline in the self-regulating ability of the soil. Therefore, although the single nutrient contained in chemical fertilizers is high and the amount of application is small, it is not possible to apply chemical fertilizers for a long time in today's increasingly demanding living environment. Therefore, the development o...

AI Technical Summary

Problems solved by technology

[0004] However, the nutrients in unfermented and decomposed farmyard manure are mostly organic or slow-acting, which cannot be directly absorbed and utilized by crops. slow