Background technology:
Whole world agriculture production just develops towards the direction of Organic farming, green agriculture, and this is a Development Trend of World Agriculture, also is the outlet of Agricultural Sustainable Development in China.Be engaged in organic grow, green agricultural product production, using microbial fertilizer is obligato basis.After the China's entry into the WTO, can food safety, food nutrition still march on towards the problem that the Chinese common people of well-off society pay close attention to the most comprehensively, are that can the agricultural-food of large agricultural country China go to the world yet, incorporate the key of world commerce mighty torrent.But, long-term a large amount of use of traditional chemical fertilizer in agriculture production, though make the output of agricultural-food be greatly improved, but employed chemical fertilizer has 70% loss approximately or is fixed in the soil, cause soil compaction, environmental pollution, infringement human health, because soil long-term lacking organic matter causes the crop products quality to descend, seriously restricting the Sustainable development of agricultural simultaneously.Addressing these problems the most basic way is usage quantity, raising chemical fertilizer utilization ratio, the increase soil organism that reduces chemical fertilizer.Therefore, composite microbiological fertilizer of the present invention is a kind of brand-new " competition inhibition, the eubiosis " concept product, have nontoxic, harmless, pollution-free, can make the plant ramp, have that fertilizer efficiency is long, heat-resisting, salt tolerant, anti-drying, acid and alkali-resistance, can prevention and elimination of disease and pests etc. characteristics, become the new-type fertilizer of agriculture production nuisance free crops.
Summary of the invention:
The object of the invention is to design a kind of composite microbiological fertilizer, and this fertilizer is that organic fertilizer, mineral manure, microbial bacteria are composited.
By design of the present invention, the composition of this composite microbiological fertilizer is: organic fertilizer 50-70%, mineral manure 20-40%, microbial bacteria 2-8%.
The present invention is realized by following three step technical schemes:
1, the preparation method of side gemma spore bacillus, Bacillus subtillis spore powder
1.1 primary inclined plane is cultivated: Side spore genus bacillus, subtilis are inoculated on the inclined-plane of PDA substratum 30 ℃ and cultivate after 24 hours and make bacteria suspension.
1.2 secondary seed is cultivated: in the PDA liquid nutrient medium, (the shaking table revolution is 160 rev/mins) cultivated in concussion to 1% inoculum size, cultivates 48-72 hour for 25-30 ℃ with the bacterial suspension inoculation for preparing in proportion.
1.3 the preparation of spore powder: cultured seed liquid is sprayed on the carrier, and bake drying packages spare below 80 ℃.Detect gemma quantity, contain the gemma number at 20-70 hundred million/gram.
1.4 the side gemma spore bacillus, the Bacillus subtillis spore powder standard specimen that prepare are deposited in Microbiological Lab of Sichuan Aimengai Bio-technology Co., Ltd.
2, the preparation method of organic fertilizer
2.1 raw material is prepared:
2.1.1 animal dung: comprise that chicken and duck excrement, pig cow dung etc. dehydrate.
2.1.2 changing food waste: the solid-liquid separation dry packing is standby.
2.1.3 stalk: be ground into length and be 0.5-2 centimetre straw powder.
2.1.4 bacterium slag, peat: the bacterium slag with the spice machine break up drying, peat is standby with being ground into 40-60 order after drying.
2.1.5 mineral manure: vitriolate of tartar, mono-calcium phosphate and calcium superphosphate, fused(calcium magnesium)phosphate, boron mud, ferrous sulfate, lime, gypsum etc.
2.2 preparation of raw material: mix thoroughly by animal dung 25-30%, changing food waste 10-15%, peat 15-20%, bacterium slag 15-20%, straw powder 10-15%, vitriolate of tartar 5-10%, mono-calcium phosphate and calcium superphosphate 5-15%, fused(calcium magnesium)phosphate 3-5%, boron mud 5-10%, ferrous sulfate 0.5-1%, gypsum 1-2%, lime 1-1.5% batching, adjusting contains moisture in the 55-60% scope, the fermenter fermentation.
2.3 fermentation: will get above-mentioned respectively material ready and put into fermenter, and evenly add enzymatic microorganism simultaneously, throwing is turned in mechanize, with opening material, increase amount of oxygen.One time fermentation requirement 12-15 days, the fermentation top temperature must reach 65-75 ℃ of degree.Secondary Fermentation needs 5-7 days micro-aerobe fermentations, and temperature is controlled at 48-52 ℃.
2.4 oven dry, pulverizing: the material that ferments is dried through fluidized-bed, and temperature is controlled at 80 ℃ below the degree, and water content is controlled in the 10-15% scope, crushing screening, and fineness reaches the 60-80 order, and is standby.
3, the preparation of composite microbiological fertilizer
3.1 (nitrogenous fertilizer can be used urea, ammonium sulfate with the mineral manure of Side spore genus bacillus, subtilis spore powder and the 20-40% of 2-8%, phosphate fertilizer phosphoric acid one ammonium, general calcium, potash fertilizer can be with vitriolate of tartar, Repone K) send into stirrer and make one-level and stir, the organic fertilizer that adds 50-70% is evenly again done the secondary stirring, makes material full and uniform.
3.2 the above-mentioned material that will stir is sent into the cylinder tablets press after crushed with travelling belt, uperize makes material be heated to 40-70 ℃ in cylinder, moves by not stall of cylinder and makes the material balling-up.
3.3 drying roller is sent in balling-up, input hot-air seasoning, temperature in≤360 ℃, temperature out≤50 ℃.
3.4 with the oven dry balling-up through cooling, screening, canned one-tenth finished product.