The fertilization amount per mu for the whole radish in the medium fertility level is 3000-3500 kg of farmyard fertilizer (or 350-400 kg of commodity organic fertilizer), 14-16 kg of nitrogen fertilizer, 6-8 kg of phosphate fertilizer, 9-11 kg of potassium fertilizer, nitrogen , Potassium fertilizer sub-basal fertilizer and the second top-dressing fertilizer, phosphate fertilizer all as base fertilizer, fertilizer and farmyard fertilizer (or commercial organic fertilizer) mixed application. Basal fertilizer: 3000-3500 kg of farmyard fertilizer or 350-400 kg of commodity organic fertilizer, 5-6 kg of urea, 13-17 kg of diammonium phosphate, and 5-7 kg of potassium sulfate per mu. Top-dressing: In the early stage of fleshy root enlargement, 11-13 kg of urea and 8-9 kg of potassium sulphate were applied. In the mid-stage of fleshy root enlargement, 9-10 kg of urea and 5-6 kg of potassium sulfate were applied. Root dressing: In the late growth stage, 0.3% calcium nitrate and 0.2% boric acid can be sprayed 2-3 times to prevent calcium deficiency and boron deficiency. At the same time, 0.2% potassium dihydrogen phosphate can be sprayed on the leaves to increase the yield and quality.
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