Spring lotus root, reasonable fertilization

Fertilizer base fertilizer can supply the nutrient needed for the whole growth period of lotus root, and has the function of improving soil and fertility. The amount of basal fertilizer in Putian should be determined according to the soil. Most of the lotus roots are planted with loose and fertile soil, rich organic matter, and convenient irrigation and drainage. In combination with soil preparation, 2500-3000 kg of farmyard manure is applied per acre, and general-purpose compound fertilizer 60-80. Kilograms, and apply calcium, boron, zinc and other fertilizers, then deep plowing 20-30 centimeters, plough flat, put into 3-5 cm shallow water for use.

Appropriate top-dressing lotus roots need to be applied 2-3 times during the whole growth period. The first time when the plant has 1-2 leaves (25-30 days after planting), apply 15 kg of urea per mu or maturity farmyard fertilizer 1500- 2000 kg, potassium sulphate 7.5-10 kg; the second time in the 5-6 leaves (40-50 days after planting), Mushi NPK fertilizer 20-25 kg; the third time in the termination of leaves When it is applied, it begins to scab, applying 15-20 kg of high-potassium compound fertilizer per acre, or about 2000 kg of human and manure. Clear and windless weather should be selected. Fertilize in the early morning or early evening. Put shallow water before each fertilization and let the fertilizer dissolve into the water. After fertilizing for 2 days, irrigate the water to the original height, and pour water to flush the lotus leaves. For Sham Shui Po, it is advisable to make top-dressing mud to prevent fertilizer from floating. Be careful not to step on the wounded whip when fertilizing, so as not to affect the crusting.

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