白菜需水量较多,浇水适当是白菜丰产的关键。各地菜农在长期生产实践中,对白菜浇水也积累了很多宝贵的经验。农谚说:“麦浇小,菜浇老”。“白露上粪,秋分打水”,这都说明白菜生长最需要水的时候。一茬白菜需要浇几水最合适,这要看天气、土壤质地和肥料情况来定。根据菜农的经验,“大旱不过十五水,涝年两水就收菜”。一般年份需要7—9水。沙性土壤渗水力强,浇水次数就多;粘性土壤渗水力弱,浇水次数就少。地下水位浅的,浇水可以少些;水位深的,浇水要多些。碱性强的土壤, Cabbage more water, appropriate watering is the key to cabbage yield. Local farmers in the long-term production practices, watering cabbage has also accumulated a lot of valuable experience. Agricultural proverb said: “wheat pouring small, pouring vegetables old.” “White dew on the manure, autumn draw water,” which all indicate cabbage growth when the water needs the most. Stubble cabbage need to pour the most appropriate water, which depends on the weather, soil texture and fertilizer to be set. According to the experience of vegetable farmers, “a drought but fifteen water, waterlogged two years to close the dishes.” The general year requires 7-9 water. Sandy soil seepage force is strong, the number of watering more; sticky soil seepage force is weak, the number of watering less. Groundwater shallow, watering can be less; deep water, watering more. Alkaline soil,