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当前,甜菜追肥上存在的严重问题是追施氮肥偏多,氮、磷肥的比例失调。经调查,1992年彰武县甜菜平均底肥每亩施氮（纯氮）3公斤,追施氮肥7.68公斤,氮、磷比例为1.78:1;新民县种植甜菜每亩平均底肥施氮5公斤,追施氮肥8.8公斤,氮、磷的比例为2:1,法库县甜菜平均每亩底肥施氮3.85公斤,追施氮肥9.2公斤,氮、磷的比例为1.89:1。
At present, the serious problem existing in sugar beet topdressing is topsoil nitrogen, imbalance of nitrogen and phosphate fertilizer. After investigation, in 1992 Zhangwu County, the average base fertilizer basal fertilizer 3 kg of nitrogen per acre (nitrogen), topdressing nitrogen fertilizer 7.68 kg, nitrogen, phosphorus ratio of 1.78: 1; Xinmin County, Nitrogen fertilizer topdressing 8.8 kg, the ratio of nitrogen and phosphorus was 2: 1, Faku County beetroot on average 3.85 kg of base fertilizer per hectare, topdressing nitrogen of 9.2 kg, nitrogen, phosphorus ratio of 1.89: 1.