The fertilization technique is: under the medium fertility level, the fertilization amount per mu of the radish in the whole growth period is 3000~3500 kg (or commercial organic fertilizer 350~400 kg), nitrogen fertilizer 14~16 kg, phosphate fertilizer 6~8 kg, potassium fertilizer 9~11. Kilograms, nitrogen and potassium fertilizers are divided into base fertilizers and secondary topdressing fertilizers. Phosphate fertilizers are all used as base fertilizers, and fertilizers and farmyard manure (or commercial organic fertilizers) are mixedly applied. Base fertilizer: 3000~3500kg of farmyard manure or 350~400kg of commercial organic fertilizer per acre, 5~6kg of urea, 13~17kg of diammonium phosphate and 5~7kg of potassium sulfate. Topdressing: In the early stage of the expansion of fleshy roots, 11~13 kg of urea and 8~9 kg of potassium sulphate were applied. The fleshy roots were swollen in the middle of the mu, 9~10 kg of urea and 5~6 kg of potassium sulfate. Top dressing: In the middle and late growth period, 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 foliage to increase yield and quality.
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