Microbial soil restorative and preparation method thereof

Abstract

The invention relates to a microbial soil restorative prepared by fermenting corn stalks, wheat straw, wheat bran, corn meal, rapeseed meal, lime, potassium dihydrogen phosphate, sodium chloride, water and liquid strains in a fermentation bin. The preparation method of the microbial soil restorative comprises the following steps: firstly, crushing the corn stalks and the wheat straw into particleswith diameters smaller than 5 mm; proportionally adding and mixing the wheat bran, the corn meal, the rapeseed meal, the potassium dihydrogen phosphate, the sodium chloride and the lime; then, adding25 percent of water; sending the mixture to an air steamer; adding high-pressure steam to the air steamer so as to increase the air pressure to 1-2 MPa and the temperature to 140-200 DEG C; pressuring for 4-6 minutes; releasing the mixture in the air steamer so that the temperature of the mixture falls to 30-37 DEG C; inoculating 5 percent of strains; fermenting in the fermentation bin at the temperature of 32-37 DEG C for 72 hours; discharging from the bin; and bagging to obtain a finished product. The produced microbial soil restorative contains a great amount of active substances, such asmicroorganisms, and the like, is capable of replacing fertilizer, has the growth-stimulating and disease-resistant functions, increases the yield by more than 20 percent and has low cost and easy industrialized production.

Description

technical field

[0001] The present invention relates to a microbial soil remediation agent, in particular to the technology of using microorganisms to inoculate soil for soil remediation, that is, using steam-exploded straw as the main carbon source to carry out mixed fermentation of multi-bacteria to produce highly active soil remediation agent and its Preparation. Background technique

[0002] The extensive use of chemical fertilizers not only causes environmental pollution, but also causes a large amount of energy consumption. In ecological agriculture, it is the current soil remediation method to increase soil enzyme activity, improve the utilization rate of soil remediation agents, and reduce the use of chemical fertilizers by inoculating beneficial bacteria into the soil. It is an important measure, liquid bacterial agent has the characteristics of high activity and easy to use, and it is one of the most effective restoration agents for repairing soil and improving soi...