Nutrient slow-release acidic soil conditioner and preparation method thereof
An acidic soil, slow-release technology, applied in the direction of superphosphate, application, fertilization equipment, etc., can solve the problems of difficult to form soil structure, unfavorable crop growth, and restriction of plant growth, so as to facilitate transportation and long-term storage, inhibit Growth and reproduction, effect of improving microelement structure
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Embodiment 1
[0031] A nutrient slow-release acidic soil improver, comprising the following components in parts by weight:
[0032] 3.5 parts of selenium-enriched chitosan, 10 parts of potassium fulvic acid, 45 parts of rice husk charcoal, 22 parts of traditional Chinese medicine residue, 20 parts of quicklime, 55 parts of modified polylactic acid, 18 parts of hydroxyapatite, 10 parts of chemical fertilizer, zeolite 40 parts of powder, 0.06 parts of compound microbial fertilizer, 85 parts of crop straw powder, and 5 parts of binder.
[0033] The preparation method of selenium-enriched chitosan is as follows:
[0034] Adding sodium selenite to deionized water to make a sodium selenite solution with a mass concentration of 38% is for use, dissolving chitosan in an acetic acid solution with a mass concentration of 1% is added, and the temperature is raised to 35° C., 300 r / h After 4.5 hours of mechanical stirring for 4.5 hours, dropwise add sodium hydroxide solution with a mass concentration ...
Embodiment 2
[0043] A nutrient slow-release acidic soil improver, comprising the following components in parts by weight:
[0044] 2 parts of selenium-enriched chitosan, 10 parts of potassium fulvic acid, 50 parts of rice husk charcoal, 22 parts of traditional Chinese medicine residue, 20 parts of quicklime, 55 parts of modified polylactic acid, 14 parts of hydroxyapatite, 12 parts of chemical fertilizer, zeolite powder 38 parts, 0.06 parts of compound microbial fertilizer, 100 parts of crop straw powder, and 2 parts of binder.
[0045] The preparation method of selenium-enriched chitosan is as follows:
[0046] Adding sodium selenite to deionized water to make a sodium selenite solution with a mass concentration of 40% is for use, dissolving chitosan in an acetic acid solution with a mass concentration of 2%, adding it, heating up to 30°C, 400r / m After 3 hours of mechanical stirring for 3 hours, dropwise add sodium hydroxide solution with a mass concentration of 2%, adjust the pH of the ...
Embodiment 3
[0055] A nutrient slow-release acidic soil improver, comprising the following components in parts by weight:
[0056] 4 parts of selenium-enriched chitosan, 10 parts of potassium fulvic acid, 50 parts of rice husk charcoal, 22 parts of traditional Chinese medicine residue, 10 parts of quicklime, 55 parts of modified polylactic acid, 10 parts of hydroxyapatite, 12 parts of chemical fertilizer, zeolite powder 30 parts, 0.05 parts of compound microbial fertilizer, 100 parts of crop straw powder, and 2 parts of binder.
[0057] The preparation method of selenium-enriched chitosan is as follows:
[0058] Adding sodium selenite to deionized water to make a sodium selenite solution with a mass concentration of 38% is for use, dissolving chitosan in an acetic acid solution with a mass concentration of 2%, adding it, heating up to 30°C, 400r / m After 4 hours of mechanical stirring for 4 hours, dropwise add sodium hydroxide solution with a mass concentration of 5%, adjust the pH of the ...
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Abstract
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