Preparation method of slow controlled release fertilizer for flowering peach
A technology of controlled-release fertilizer, betao, which is applied in the field of preparation of slow-controlled release fertilizer for betao, can solve the problems of low fertilizer utilization rate, achieve the effect of saving fertilization cost, improving ornamental economic benefits, and using less amount
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Embodiment 1
[0016] A kind of preparation method of slow and controlled release fertilizer for green peach, comprises the following steps:
[0017] Step 1, in parts by weight, add 10 parts of urea, 2 parts of sodium citrate, and 4 parts of humic acid to 10 parts of water, adjust the pH to 8.0-9.0, add 3 parts of formaldehyde solution, heat up to 75 ° C for 2 hours, Then add 1 part of oxidized starch and 2 parts of hydrogenated vegetable oil, adjust the pH to 4.0-5.0, raise the temperature to 85°C for 2 hours, adjust the pH to 6.0-7.0, and obtain mixture A;
[0018] Step 2, in parts by weight, take 3 parts of sodium alginate and 1 part of gelatin, add them to water, heat to 40°C, stir and keep warm for 2 hours, then add 2 parts of potassium nitrate, 3 parts of diammonium hydrogen phosphate, and 1 part of magnesium sulfate heptahydrate , 0.5 part of vitamin B family, 0.1 part of nicotinamide, 0.01 part of amino acid, 0.4 part of corn flour, 0.1 part of chitosan, 0.01 part of lecithin, mixed ...
Embodiment 2
[0022] A kind of preparation method of slow and controlled release fertilizer for green peach, comprises the following steps:
[0023] Step 1, in parts by weight, add 16 parts of urea, 3 parts of sodium citrate, and 7 parts of humic acid to 13 parts of water, adjust the pH to 8.0-9.0, add 5 parts of formaldehyde solution, heat up to 80 ° C for 2 hours, Then add 2 parts of oxidized starch and 3 parts of hydrogenated vegetable oil, adjust the pH to 4.0-5.0, heat up to 90°C for 2 hours, and adjust the pH to 6.0-7.0 to obtain mixture A;
[0024] Step 2, in parts by weight, add 6 parts of sodium alginate and 2 parts of gelatin to water, heat to 45°C, stir and keep warm for 2 hours, then add 7 parts of potassium nitrate, 4 parts of diammonium hydrogen phosphate, and 2 parts of magnesium sulfate heptahydrate , 0.7 part of vitamin B family, 0.3 part of nicotinamide, 0.05 part of amino acid, 0.8 part of corn flour, 0.3 part of chitosan, 0.04 part of lecithin, mixed to obtain mixture B;...
Embodiment 3
[0028] A kind of preparation method of slow and controlled release fertilizer for green peach, comprises the following steps:
[0029] Step 1, in parts by weight, add 12 parts of urea, 4 parts of sodium citrate, and 8 parts of humic acid to 16 parts of water, adjust the pH to 8.0-9.0, add 7 parts of formaldehyde solution, heat up to 75 ° C for 2 hours, Then add 3 parts of oxidized starch and 5 parts of hydrogenated vegetable oil, adjust the pH to 4.0-5.0, heat up to 85°C for 2 hours, and adjust the pH to 6.0-7.0 to obtain mixture A;
[0030] Step 2, in parts by weight, take 8 parts of sodium alginate and 3 parts of gelatin and add them to water, heat to 40°C and stir for 2 hours, then add 7 parts of potassium nitrate, 6 parts of diammonium hydrogen phosphate, and 4 parts of magnesium sulfate heptahydrate , 0.9 part of vitamin B family, 0.3 part of nicotinamide, 0.05 part of amino acid, 1.2 part of corn flour, 0.6 part of chitosan, 0.05 part of lecithin, mixed to obtain mixture...
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