A long-acting nitrogen fertilizer containing nitrogen-fixing microorganisms and its preparation method
A technology of nitrogen-fixing microorganisms and microbial bacteria, applied in nitrogen fertilizers, fertilization devices, organic fertilizers, etc., can solve the problems of unsatisfactory effects of slow-release nitrogen fertilizers, and achieve the effects of improving crop resistance, improving slow-release effects, and good regulation effects
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Embodiment 1
[0049] This embodiment relates to the long-acting nitrogen fertilizer of the present invention, which is prepared from raw materials comprising the following parts by weight:
[0050] 50 parts of urea, 4 parts of urease inhibitor extract, 15 parts of humic acid, 10 parts of amino acid powder, 6 parts of nitrification inhibitor extract, 6 parts of amino acid solution, 1 part of microbial powder, 3 parts of polyglutamic acid finished product , 5 parts of polyglucosamine finished product;
[0051] The urease inhibitor extract is the dry powder extract of a bunch of red leaves, and the inhibition rate of urease is 53% after testing. The nitrification inhibitor extract is Chlorophytum leaf dry powder extract, and after testing, the nitrification inhibition rate is 44%; the bacteria powder is Azotobacter torus;
[0052] The preparation method of the urease inhibitor extract is as follows: crush the dry leaves of Yichuanhong to 50 mesh, mix uniformly according to the ratio of dry le...
Embodiment 2
[0060] This embodiment relates to the long-acting nitrogen fertilizer of the present invention, which is prepared from raw materials comprising the following parts by weight:
[0061] 45 parts of urea, 4 parts of urease inhibitor extract, 15 parts of humic acid, 14 parts of amino acid powder, 5 parts of nitrification inhibitor extract, 6 parts of amino acid solution, 1 part of microbial powder, 4 parts of polyglutamic acid finished product , 6 parts of polyglucosamine finished product.
[0062] The urease inhibitor extract is the dry powder extract of ginkgo biloba and Albizia julibrissin leaves, and the urease inhibitory rate is 48% after testing. The nitrification inhibitor extract is mint and Panax notoginseng dry powder extract, and the nitrification inhibition rate is 42% after testing. The bacteria powder is brown autogenous nitrogen bacteria.
[0063] The preparation method of the urease inhibitor extract is as follows: Ginkgo biloba and leaves of Albizia Julibrissin ...
Embodiment 3
[0071] This embodiment relates to the long-acting nitrogen fertilizer of the present invention, which is prepared from raw materials comprising the following parts by weight:
[0072] 45 parts of urea, 4 parts of urease inhibitor extract, 20 parts of humic acid, 10 parts of amino acid powder, 5 parts of nitrification inhibitor extract, 5 parts of amino acid solution, 1 part of microbial powder, 4 parts of polyglutamic acid finished product , 6 parts of polyglucosamine finished product.
[0073] The urease inhibitor extract is the dry powder extract of peach and persimmon leaves, and the inhibitory rate to urease is 45%. The nitrification inhibitor extract is an orange leaf dry powder extract, and the nitrification inhibition rate is 46% after testing. The bacteria powder is brown autogenous nitrogen bacteria.
[0074] The urease inhibitor extract is the dry powder extract of peach and persimmon leaves, and the inhibitory rate to urease is 45%. The nitrification inhibitor ex...
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