Special water-soluble fertilizer for seedlings, and preparation method and application thereof
A technology for water-soluble fertilizers and seedlings, applied in fertilization methods, applications, fertilization devices, etc., can solve the problems of wasting manpower, material resources, and increase production costs, and achieve the effects of promoting root development, enhancing cold resistance, and promoting roots and leaves.
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Embodiment 1
[0032] Formula: the parts by weight of each component are 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, 8.27 parts of potassium nitrate, 0.21 part of magnesium sulfate, 0.21 part of ferrous sulfate heptahydrate, 0.04 part of zinc sulfate, 0.50 part of azadirachtin, 0.05 part of effective phosphorus, 0.20 part of rooting powder, 3.00 part of fulvic acid, 0.20 part of surfactant, appropriate amount of sulfuric acid, and appropriate amount of water.
[0033] making process:
[0034] (1) 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, and 8.27 parts of potassium nitrate were dissolved in water to obtain solution A, and the pH value of solution A was adjusted to 3-4 with sulfuric acid to obtain solution B;
[0035] (2) 0.21 part of magnesium sulfate, 0.21 part of ferrous sulfate heptahydrate, 0.04 part of zinc sulfate, 0.50 part of azadirachtin, 0.05 part of synergistic phosphorus, 0.20 part of rooting powder and 3.00 part of fulvic acid ar...
Embodiment 2
[0039] Formula: the parts by weight of each component are 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, 8.27 parts of potassium nitrate, 0.21 part of magnesium sulfate, 0.21 part of ferrous sulfate heptahydrate, 0.04 part of zinc sulfate, 0.50 part of azadirachtin, 0.10 parts of effective phosphorus, 0.20 parts of rooting powder, 3.00 parts of fulvic acid, 0.20 parts of surfactant, appropriate amount of sulfuric acid, and appropriate amount of water.
[0040] making process:
[0041] (1) 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, and 8.27 parts of potassium nitrate were dissolved in water to obtain solution A, and the pH value of solution A was adjusted to 3-4 with sulfuric acid to obtain solution B;
[0042] (2) 0.21 part of magnesium sulfate, 0.21 part of ferrous sulfate heptahydrate, 0.04 part of zinc sulfate, 0.50 part of azadirachtin, 0.10 part of synergistic phosphorus, 0.20 part of rooting powder and 3.00 part of fulvic aci...
Embodiment 3
[0046] Formula: the parts by weight of each component are 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, 8.27 parts of potassium nitrate, 0.21 part of magnesium sulfate, 0.21 part of ferrous sulfate heptahydrate, 0.04 part of zinc sulfate, 0.50 part of azadirachtin, 0.16 parts of effective phosphorus, 0.20 parts of rooting powder, 3.00 parts of fulvic acid, 0.20 parts of surfactant, appropriate amount of sulfuric acid, and appropriate amount of water.
[0047] making process:
[0048] (1) 42.51 parts of urea, 11.52 parts of potassium dihydrogen phosphate, and 8.27 parts of potassium nitrate were dissolved in water to obtain solution A, and the pH value of solution A was adjusted to 3-4 with sulfuric acid to obtain solution B;
[0049] (2) 0.21 parts of magnesium sulfate, 0.21 grams of ferrous sulfate heptahydrate, 0.04 parts of zinc sulfate, 0.50 parts of azadirachtin, 0.16 parts of synergistic phosphorus, 0.20 parts of rooting powder and 3.00 parts of ful...
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