How to fertilize potato
Potatoes like to loose loose fertile sandy soil. Potassium in potato should pay attention to the application of potassium fertilizer. Basal fertilizer should be applied to more farmyard fertilizers with nitrogen, phosphorus and potassium fertilizers, usually 15-20 kilograms of diammonium and 10-15 kilograms of potassium sulfate. Top dressing twice, the first time after Qimiao, to promote the growth of stems and leaves, known as "seedling maintenance fertilizer", generally about 5-8 kilograms of urea urea; the second time in the hair stage and potato stage, In order to meet the nutrients needed for tuber, promote early tuber, more tubers, generally 5-10 kg of urea. The amount of fertilization should be adjusted according to the local soil nutrient supply conditions and fertilization habits. For low yield and poor soil plots, the fertilizer application amount should be limited to an upper limit. For high yield, fertile soil, the fertilization amount should be lower than the minimum.
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