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Method for keeping trichoderma spores alive in trichoderma bio-organic fertilizer product
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A bio-organic fertilizer, Trichoderma technology, applied in the direction of organic fertilizer, inorganic fertilizer, nitrogen fertilizer, etc., can solve the problem of poor biological fertilizer effect and other problems
Pending Publication Date: 2018-09-28
NANJING AGRICULTURAL UNIVERSITY
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If the pH of the decomposed compost is not adjusted to below 7.5, it means that all biological fertilizers are organic fertilizers that only contain organic matter and do not contain functional bacteria. Therefore, adjusting the pH in biological fertilizer products is the key to making biological fertilizers. The most critical step, but the past biological fertilizer basically did not regulate its pH, which is the root cause of the poor effect of biological fertilizer
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Embodiment 1
[0038] Trichodermaspore preservation method in a kind of Trichoderma biological organic fertilizer product:
[0039] (1) Add the acid hydrolyzed amino acid solution into the decomposed cow dung compost in an addition ratio of 15wt%, fully mix, neutralize, and carry out the first post-ripening. The post-ripening time is 3 days, and the pH of the mixture is now 3.5- Between 4.5;
[0040] (2) Fully mix the chemical fertilizer of the formula quantity with the amino acid compost after the first post-ripening and then post-ripening for the second time. At this time, the pH of the mixture will rise to about 7.5 again; the nutrient ratio of the fertilizer N:P:K is 1:0.3:0.3, the total amount added is 6wt%; the second post-ripening time is 2 days;
[0041] (3) Measure the actual pH of the mixture, then add a certain amount of acid hydrolyzed amino acid solution and carry out the third post-ripening, so that the product pH is stabilized at 5.5, 6.0, 6.5, 7.0, and the obtained pH is re...
Embodiment 2
[0049] Trichoderma spore preservation method in a kind of Trichoderma biological organic fertilizer product:
[0050] (1) Fully mix the chemical fertilizer with the amount of formula and decomposed corn compost, divide it into two parts, add 1-2mol / L sulfuric acid solution to one part, stir evenly, neutralize and post-ripen for 6-7 days; fertilizer nutrient ratio N:P: K is 1:0.3:0.3, and its adding total amount is 6wt%; Another part; Divide into four parts, after measuring pH, adjust pH with plant ash to be 7.5,8.0,8.5,9.0 respectively, obtain pH and be respectively 7.5,8.0,8.5, 9.0 compost.
[0051] (2) Measure the actual pH of the mixture, then add a certain amount of 1-2mol / L sulfuric acid solution and ripen for 2-3 days, make the product pH stable at 5.5, 6.0, 6.5, 7.0, obtain 5.5, 6.0, 6.5, 7.0 , 7.5, 8.0, 8.5, 9.0 compost;
[0052] (3) Add Trichoderma solid strains to the compost of each pH, fully mix, and pack to obtain Trichoderma bio-organic fertilizer products wi...
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Abstract
The invention discloses a method for keeping trichoderma spores alive in a trichoderma bio-organic fertilizer product. The method comprises the following steps: adding an acidolysis amino acid solution to a matured compost according to a certain addictive proportion, fully mixing, neutralizing, and carrying out first after-ripening, wherein the pH of the mixture is about 4 at the moment; then fully mixing formula amounts of chemical fertilizer with the amino acidcompost of the first after-ripening, and then carrying out second after-ripening; determining the actual pH of the mixture, and thenadding a certain amount of the acidolysis amino acid solution for third after-ripening, so as to stabilize the pH of the product between 6 and 7; and finally, adding trichodermasolid strains, fullymixing and packaging. After one year of preservation of the trichoderma bio-organic fertilizer product prepared by the method, the spore concentration of trichoderma funguses is still more than 3*107per g, which is significantly larger than the agricultural industry standard (2*107 per g).
Description
technical field [0001] The invention belongs to the field of bio-organic fertilizers, and relates to a method for keeping alive Trichoderma spores in Trichoderma bio-organic fertilizer products. Background technique [0002] Bio-organic fertilizer (NY 884-2012 industry standard: organic matter≧40%, functional bacteria≧2×10 7 , moisture≦30%, pH 5.5-8.5) and compound microbial fertilizer (NY / T 798-2015 industry standard: organic matter≧20%, nitrogen, phosphorus and potassium nutrients 8-25%, functional bacteria≧2×10 7 , moisture ≦ 30%, pH 5.5-8.5) are currently the two leading varieties of microbial fertilizers in my country, which have contributed to the improvement of soil fertility and the resource utilization of solid organic waste in my country. However, we have recently collected 9 samples from the market, none of which contained functional bacteria reached the industry standard set by the Ministry of Agriculture (Table 1). The functional bacteria content of fresh samp...
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