Preparation process of straw matrix bio-fertilizer used for correcting soil nutrient imbalance

Abstract

The invention discloses a preparation process of a straw matrix bio-fertilizer used for correcting soil nutrient imbalance. The preparation process comprises the following steps: S1, mixing wheat straw, corn straw, cow dung and chicken manure, conducting crushing, piling and burying the crushed mixture in a sunlight greenhouse, carrying out moisture evaporation until a moisture content is 13-17%, and uniformly mixing the crushed straw mixture with water according to a ratio of 4: 1 to obtain a fermentation raw material; S2, mixing black soil and compost, carrying out full and uniform stirring, performing aerobic fermentation, putting the formed mixture into the fermentation raw material, and inoculating decomposed mixed bacteria to prepare an organic mixed fertilizer; and S3, adding an auxiliary fertilizer and a mixture into the organic mixed fertilizer, carrying out uniform mixing, then conducting drying at low temperature, and preparing the granular straw matrix bio-fertilizer through a granulator after drying. The straw matrix bio-fertilizer prepared by the invention has a relatively large pore structure and good adsorption performance, the slow release effect of the fertilizer is improved, the fertilizer efficiency is stable and long-lasting, soil hardening is not caused, and soil quality can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of biological fertilizers, and more specifically relates to a preparation process of straw-based biological fertilizers for correcting soil nutrient imbalance. Background technique [0002] The status of fertilizer in agricultural production is very important, and it plays a pivotal role. In order to meet the needs of agricultural modernization, it is developing in the direction of high-efficiency compounding. With the development of facility agriculture (such as plastic greenhouses, etc.), the demand for fertilizers for vegetables and fruits will gradually increase. [0003] Using orange stalks to prepare organic fertilizers can realize the full resource utilization and high value-added of orange stalks, and solve the high-value and full utilization of agricultural waste. However, at present, the biological fertilizer made from waste orange stalks has a single component, incomplete fertility, fast fertiliz...

AI Technical Summary

Problems solved by technology

However, at present, the biological fertilizer made from waste orange stalks has a single component, incomplete fertility, fast fertilizer effect, short-term effect, and long-term use will cause soil compaction. Therefore, we propose a straw to correct the imbalance of soil nutrients. Preparation process of matrix biological fertilizer