Preparation method of efficient liquid biofertilizer

Abstract

The invention relates to a preparation method of an efficient liquid biofertilizer, comprising the following steps: (1) using organic wastewater as a culture medium, adding nutrients essential for growth and reproduction of microbes, carrying out sterilization, and fermenting after sterilization so as to obtain an initial fermentation broth; (2) cooling the initial fermentation broth to room temperature, and adjusting pH of the solution to 5.5-6.6 by adding a pH buffer agent into the fermentation cylinder; (3) inoculation: pouring a bacterial strain which accounts for 5-10% of mass of the pH-regulated fermentation broth into the pH-regulated fermentation broth obtained in the Step (2), and culturing for 120-160 h so as to obtain a microbial agent, wherein mass ratio of the bacterial strainto the fermentation broth is as shown in the specification; and (4) adding a nitrogenous fertilizer, a phosphate fertilizer, a potash fertilizer and a plant regulator into the microbial agent, and filling to obtain the efficient liquid biofertilizer. The efficient liquid biofertilizer of the invention can help improve soil structure and treat soil hardening, thus changing waste into valuable things.

Description

technical field [0001] The invention belongs to the technical field of microbial fertilizers, in particular to a preparation method of high-efficiency liquid biological fertilizers. Background technique [0002] Advantages of high-efficiency liquid biological fertilizers: 1. Fast fertilizer efficiency, high absorption rate, convenient use, and safe application; 2. Promote plant root development and photosynthesis, enhance disease resistance and stress resistance; 3. Improve soil structure and promote soil beneficial microorganisms Propagation; 4. Inhibit the reproduction of harmful bacteria and virus damage, improve the self-healing ability of plants; 5. Improve crop yield and quality, and prolong storage time. [0003] At present, there are many reports on the technology of using organic waste such as livestock manure, biogas residue, etc. to produce organic fertilizer; the technology of using plant straw, waste newspaper, wood fiber, kitchen residue, etc. to prepare organi...

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Problems solved by technology

[0003] At present, there are many reports on the technology of using organic waste such as livestock manure, biogas residue, etc. to produce organic fertilizer; the technology of using plant straw, waste newspaper, wood fiber, kitchen residue, etc. to prepare organic fertilizer has also been published, but it involves the use of biogas slurry, The method of preparing high-efficiency liquid bio-fertilizer from organic waste water such as kitchen waste has not been reported yet