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大白菜秋播制种,用工少,投资小、产量高、收获早、效益好。现把大白菜秋播杂交制种的技术措施介绍如下:1制种田的选择及整地制种田必须选择土壤肥沃、地势平坦、排灌方便、集中连片的地块。隔离区要求2000m以上,隔离区内不准种植十字花科植物。整地时每亩施土杂肥8000Kg、碳铵50Kg、过磷酸钙50Kg或亩施复合肥
Autumn cabbage seeding species, less labor, small investment, high yield, early harvest, good efficiency. Now the hybridization of Chinese cabbage autumn hybrid seed production techniques described below: 1 farming system selection and land preparation farming must choose the fertile soil, flat terrain, irrigation and drainage convenience, concentrated contiguous plots. Quarantine requirements of more than 2000m, isolation areas are not allowed to plant cruciferous plants. Soil preparation when Shi Tuzao fertilizer per acre 8000Kg, ammonium bicarbonate 50Kg, superphosphate 50Kg or Mushi compound fertilizer