Compound microbial agent for straw turnover, and preparation method and application of compound microbial agent
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A technology of compound microbial bacterial agent and straw, which is applied in the agricultural field, can solve the problems of not being fully utilized, and achieve the effects of reducing the accumulation of harmful organic acids, improving the fermentation effect, and inhibiting the reproduction
Active Publication Date: 2021-03-09
中科元生生物技术(天津)有限公司
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The microbial compound bacterial agent described in this invention and the straw treated with it reduce the harm of diseases and insect pests, but fail to fully exert the effect of straw decomposing and fertilizing, which is different from the concentrated fermentation using high temperature and the dominant flora of
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Embodiment 1
[0080] A kind of composite microbial bacterial agent, its preparation method is as follows:
[0081] 1. Carry out single strain propagation of Lactobacillus pentosus, Acetobacter pasteurianus, Sphingomonas, Pichia pastoris, Hansenula cactus, Rhizopus aerizopus and Chaetomona globosa respectively:
[0083] Acetobacter pasteurian, using acetic acid bacteria fermentation medium, main ingredients: glucose 20g, yeast extract 5g, peptone 5g, trisodium phosphate 3g, sodium citrate 1g, water 1000ml. 5% seeding, pH 5, 30°C, 100rpm, culture time 48h.
[0084] Sphingomonas, the main components of the medium: glucose 30g / L, peptone 3g / L, yeast extract 2...
Embodiment 2
[0091] The liquid composite microbial inoculum obtained in Example 1 was mixed with rice bran, and the water was evaporated to make a solid powder to obtain a solid composite microbial inoculum.
Embodiment 3
[0093] Compared with Example 1, except that the inoculation volume ratio of Lactobacillus pentosus, Acetobacter pasteurianus and Sphingomonas is 1:1:1, other conditions are the same as Example 1.
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Abstract
The invention provides a compound microbial agent for straw turnover, and a preparation method and application of the compound microbial agent. The compound microbial agent comprises fungi and bacteria, wherein the bacteria include lactic acid bacteria, Acetobacter pasteurianus and Sphingomonas xenophaga. The compound microbial agent can quickly compost straws in about 15 days, meanwhile, the nutrient substances of soil are increased, the content of total nitrogen, available phosphorus, organic matters and rapidly available potassium is increased, and the compound microbial agent is favorablefor the growth of crops, inhibits reproduction of harmful bacteria and reduces accumulation of organic acid.
Description
technical field [0001] The invention belongs to the technical field of agriculture, and relates to a compound microbial bacterial agent for returning straw to fields, a preparation method and application thereof. Background technique [0002] Crop straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc. It is a multi-purpose renewable resource, but currently only part of the straw is reused, and most of it is burned as fuel, which is not only wasted resources, but also seriously pollute the air. Reasonable straw returning to the field can increase soil organic matter, improve soil structure, loosen the soil, increase porosity, reduce capacity, and promote microbial activity and crop root development. Straw returning to the field has a significant effect on increasing fertilizer and production. However, if the method is improper, it will also lead to the increase of soil pathogens, aggravation of crop diseases, lack of seedlings, stiff see...
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