Cabbage has a high yield and is fertilizer and fertilizer-resistant. It needs to absorb 4.1-6.5 kg of nitrogen, 1.2-1.9 kg of phosphorus pentoxide, and 4.9-6.8 kg of potassium oxide per 1000 kg of production. The amount of fertilization per acre for the whole growth period of cabbage is 2500-3000 kg of farmyard fertilizer (or 350-400 kg of commodity organic fertilizer), 15-18 kg of nitrogen fertilizer, 6-7 kg of phosphate fertilizer, and 8-11 kg of potassium fertilizer. Organic fertilizer was used as base fertilizer, nitrogen and potassium fertilizer were used as base fertilizer and 3 top dressings. Phosphate fertilizer as base fertilizer.
Basal fertilizer is generally applied to 2500-3000 kg of farmyard fertilizer (or 350-400 kg of commodity organic fertilizer), 4 to 5 kg of urea, 13 to 15 kg of diammonium phosphate, and 5 to 7 kg of potassium sulfate. 60% of the organic fertilizer is applied in the field when the earthworms are used for the earthworms, and 40% of the organic fertilizers are applied during the planting of the seedlings. In order to prevent fertilizer loss during the rainy season and lack of fertilizer, cabbage cultivation in summer, pay more attention to the application of basal fertilizer.
Fertilizer lotus urea per acre 7-8 kilograms, potassium sulfate 3 to 5 kilograms; urea 10 to 12 kilograms of urea per kilogram, 4 to 6 kilograms of potassium sulfate; 7 to 8 kilograms per acre of urea. Potassium sulfate 3 to 5 kg.
The top dressing can be sprayed with 0.2% potassium dihydrogen phosphate solution and middle and trace element fertilizers at the early stage of the shoot. In the absence of boron or calcium deficiency, two to three 0.1% to 0.2% borax solutions, or 0.3% to 0.5% calcium chloride or calcium nitrate solutions can be sprayed in the middle growth phase. Facilities can be grown with carbon dioxide gas fertilizer.
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