Recommended fertilization amount and fertilization time reference table for main crops per acre
Crop base fertilizer (special fertilizer or fertilization according to the following method) Fertilizer application amount Winter wheat urea 4-5 kg, Diammonium phosphate 18-20 kg, Potassium chloride 5-8 kg Greening stage Urea 5 kg Spring wheat urea 5 kg Diammonium phosphate 20 kg, potassium chloride 5-8 kg Jointing stage urea 10-13 kg Single crop rice urea 8-10 kg, superphosphate 25-50 kg, potassium chloride 8-10 kg, zinc sulfate 1-2 kg diffusing Urea 5-8 kg early rice urea 8-10 kg, superphosphate 38-50 kg, potassium chloride 10-13 kg, zinc sulfate 1-2 kg urea 5-8 kg late-season urea 8-10 kg, over 25 kg of calcium phosphate, 10-13 kg of potassium chloride, 1-2 kg of zinc sulfate, 5-8 kg of urea, 5 kg of spring corn urea, 15-20 kg of diammonium phosphate, 20 kg of potassium chloride, zinc sulfate 1- 2 kg of urea 5 kg of summer corn seed fertilizer, 3-5 kg ​​of diammonium phosphate, 5 kg of potassium chloride, 1-2 kg of zinc sulfate, 1-2 kg of manganese sulfate (to be separated from the seed) urea at seedling stage 5- 10 kg soybean seed fertilizer, 10 kg superphosphate or 5 kg diammonium phosphate (to be separated from the seed) 1% ammonium molybdate solution seed dressing (0.5 kg/mu Liquid seed dressing), Rhizobium Inoculation Appropriate initial flowering period Urea 5-8 kg Ordinary cotton oil residue 75-100 kg Or farmyard fertilizer 2-3 tons, Urea 10 kg, Diammonium phosphate 20-25 kg, Potassium sulfate 5-8 kg Bud stage (before head water) Urea 5-8 kg insect resistant cotton 8-10 kg
Crop base fertilizer (with special fertilizer or fertilization according to the following method) Fertilizer in the second period: winter wheat urea 4-5 kg, diammonium phosphate 18-20 kg, potassium chloride 5-8 kg jointing period urea 10 kg spring wheat urea 5 kg, Diammonium phosphate 20 kg, potassium chloride 5-8 kg single-season rice urea 8-10 kg, superphosphate 25-50 kg, potassium chloride 8-10 kg, zinc sulfate 1-2 kg booting phase urea 8-10 kg early rice Urea 8-10 kg, superphosphate 38-50 kg, potassium chloride 10-13 kg, zinc sulfate 1-2 kg booting phase urea 5-8 kg late rice urea 8-10 kg, superphosphate 25 kg, chlorination Potassium 10-13 kg, Zinc sulfate 1-2 kg Booting stage Urea 8-10 kg Spring corn urea 5 kg, Diammonium phosphate 15-20 kg, Potassium chloride 20 kg, Zinc sulfate 1-2 kg Large bellmouth urea 15-20 kg summer maize seed fertilizer, 3-5 kg ​​of diammonium phosphate, 5 kg of potassium chloride, 1-2 kg of zinc sulfate, 1-2 kg of manganese sulfate (to be separated from the seed) Large bell-mouth urea 20-25 Kilo soybean seed fertilizer, superphosphate 10 kg or diammonium phosphate 5 kg (to be separated from the seed) 1% ammonium molybdate solution (0.5 kg/mu) Liquid seed dressing), rhizobium agent amount of ordinary cotton oil residue 75-100 kg or 2-3 tons of farmyard fertilizer, urea 10 kg, 20-25 kg of diammonium phosphate, potassium sulfate 5-8 kg flowering period (before dihydrate ) Urea 13-15 kg insect resistant cotton 10-13 kg
Crop base fertilizer (special fertilizer or fertilization according to the following method) Three-stage dressing fertilizer: Winter wheat urea 4-5 kg, diammonium phosphate 18-20 kg, potassium chloride 5-8 kg grouting is started twice, each time About 7 days Potassium dihydrogen phosphate solution concentration 0.2% Spring wheat urea 5 kg, DAP 20 kg, Potassium chloride 5-8 kg Injected twice at the beginning of the grout, each time about 7 days Diluted potassium dihydrogen phosphate solution concentration 0.2% Single crop rice urea 8-10 kg, superphosphate 25-50 kg, potassium chloride 8-10 kg, zinc sulphate 1-2 kg HEADING UREA 3-5 kg ​​EARLIER UREA 8-10 kg, superphosphate 38-50 kg , Potassium chloride 10-13 kg, zinc sulphate 1-2 kg Urea 0-3 kg of late rice urea 8-10 kg, superphosphate 25 kg, potassium chloride 10-13 kg, zinc sulfate 1-2 kg heading Urea 3-5 kg ​​spring corn urea 5 kg, diammonium phosphate 15-20 kg, potassium chloride 20 kg, zinc sulfate 1-2 kg tasselling period urea 3-5 kg ​​summer corn seed fertilizer, diammonium phosphate 3-5 Kg, potassium chloride 5 kg, zinc sulfate 1-2 kg, manganese sulfate 1-2 kg (to be separated from the seed) Tasselling period urea 3-5 kg ​​soybean Fertilizer, superphosphate 10 kg or diammonium phosphate 5 kg (to be separated from the seed) 1% ammonium molybdate solution (0.5 kg solution per acre), rhizobium inoculated with adequate amount of primary phosphate The concentration of hydrogen potassium solution 0.2% ordinary cotton dregs 75-100 kg or 2-3 tons of farmyard fertilizer, urea 10 kg, 20-25 kg of diammonium phosphate, potassium sulfate 5-8 kg of insect-resistant cotton
Note: This table is for reference dosage. The specific fertilization amount and fertilization time should be adapted to local conditions. The recommendation of the local agricultural technical department for soil fertigation recommendation shall prevail.Active Pharmaceutical Ingredient (API)
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