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一、选用高产抗病良种,搞好种子播前处理根据当地的气候环境,栽培条件及人们的食用情况选择适宜的品种。一般肥水条件较差的地块选用矮菜,早熟品种;肥水条件好的地块选用高菜,中、晚熟品种。目前,适于北方种植的高产抗病良种有:鲁白1、2号,城杂5号,北京小杂等。对已选好的种子,在播前要淘汰秕籽,并用瑞毒霉多菌灵等杀菌剂进行拌种。二、选好茬口,整地增施基肥种植秋白菜不要选择十字花科蔬菜茬口,可减轻病害。粮细整地,施足底肥是充分发挥其优势的重要措施。一般在播种前1周整好地、施好肥。平均每顷施农家肥30—50立方米。改单一施肥为氮、磷、钾混合施用,每公顷加过磷酸钙400—600公斤或二铵250—300公斤,
First, the selection of high-yielding disease-resistant varieties, do a good job before sowing the seeds According to the local climate and environment, cultivation conditions and people’s food choice of the appropriate varieties. Generally poor water and fertilizer conditions in the selection of low-field plots, precocious varieties; fertilizer conditions of good land use high-profile, medium and late maturing varieties. At present, the high yield and disease resistant varieties suitable for planting in the north are: Lu Bai 1,2, Chengza 5, Beijing Xiaosha. The seeds have been selected, before sowing out seeds, and the use of fungicides such as Triturate mold carbendazim seed dressing. Second, select a crop rotation, land preparation base fertilizer planting autumn cabbage Do not choose cruciferous vegetable stubble, can reduce disease. Grain finely ground, Shi Su enough is an important measure to give full play to its advantages. Generally 1 week before sowing well, Shi fertilizer. On average, farmers apply fertilizer 30-50 cubic meters. Change a single fertilization for nitrogen, phosphorus and potassium mixed application, add 400-600 kilograms per hectare of superphosphate or diammonium 250-300 kilograms,