Slow-release organic fertilizer and preparation method thereof
An organic fertilizer and slow-release technology, which is applied in the field of slow-release organic fertilizer and its preparation, can solve the problems that the durability of fertilizer effect needs to be further improved, the slow-release effect of slow-release fertilizer is limited, and the preparation process conditions are high, and the slow-release effect is remarkable. , The preparation method is simple and easy, and the effect of enhancing the activity of soil microorganisms
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Embodiment 1
[0027] Embodiment 1 provides a slow-release organic fertilizer, which is characterized in that it includes the following components in parts by weight: 20 parts of phosphorus-containing modified imidazolidinyl urea, 30 parts of organic fermentation products, 1 part of potassium polyborate, β - 1 part of nicotinamide adenine dinucleotide, 0.3 part of nitrogen-containing hyperbranched polyphosphate, 2 parts of porous polysaccharide microspheres, 0.5 part of N-trimethylolmethacrylamide, quaternary vinyl β-cyclodextrin 0.3 part of ammonium salt, 0.1 part of initiator; the initiator is azobisisobutyronitrile.
[0028] The preparation method of the phosphorus-containing modified imidazolidinyl urea comprises the following steps: adding imidazolidinyl urea into an organic solvent, then adding dibutyl phosphate and a basic catalyst, reacting at 68°C for 6 hours, and then injecting Add water, separate the liquid to get the oily phase, and remove the solvent by rotary evaporation to obt...
Embodiment 2
[0032] Embodiment 2 provides a slow-release organic fertilizer, which is characterized in that it includes the following components by weight: 23 parts of phosphorus-containing modified imidazolidinyl urea, 31 parts of organic fermentation products, 1.5 parts of potassium polyborate, β - 1.2 parts of nicotinamide adenine dinucleotide, 0.4 parts of nitrogen-containing hyperbranched polyphosphate, 2.5 parts of porous polysaccharide microspheres, 0.6 parts of N-trimethylolmethacrylamide, vinyl β-cyclodextrin quaternary 0.35 parts of ammonium salt, 0.12 parts of initiator; the initiator is azobisisoheptanonitrile.
[0033] The preparation method of the phosphorus-containing modified imidazolidinyl urea comprises the following steps: adding imidazolidinyl urea into an organic solvent, then adding dibutyl phosphate and a basic catalyst, reacting at 72°C for 6.5 hours, and then injecting Add water, separate the liquid to get the oil phase, and remove the solvent by rotary evaporation...
Embodiment 3
[0037] Embodiment 3 provides a slow-release organic fertilizer, which is characterized in that it includes the following components in parts by weight: 25 parts of phosphorus-containing modified imidazolidinyl urea, 33 parts of organic fermentation products, 2 parts of potassium polyborate, β - 1.5 parts of nicotinamide adenine dinucleotide, 0.45 parts of nitrogen-containing hyperbranched polyphosphate, 3 parts of porous polysaccharide microspheres, 0.7 parts of N-trimethylolmethacrylamide, vinyl β-cyclodextrin quarter 0.4 part of ammonium salt, 0.15 part of initiator; the initiator is azobisisobutyronitrile.
[0038] The preparation method of the phosphorus-containing modified imidazolidinyl urea comprises the following steps: adding imidazolidinyl urea into an organic solvent, then adding dibutyl phosphate and a basic catalyst, reacting at 75°C for 7 hours, and then injecting Add water, separate the liquid to get the oil phase, and remove the solvent by rotary evaporation to...
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