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1.制种基地的选择土肥地沃是西瓜杂交制种高产的基础。在选择制种二基地时,一定要深入实际,进行详细认真的考察。选地应以土层深厚、地力肥沃的壤土类为主,并且灌溉排水方便,为西瓜秧繁苗壮打下良好的基础。同时,西瓜最忌连作,选地时应注意避免瓜类连作地。一般制种地要经5～7年的轮作,至少也需34年轮作,否则会大面积发病,造成死亡,甚至绝收。
1. The choice of seed base soil fertile fertile watermelon is the basis for high-yielding hybrid seed. When choosing a second base for seed production, we must go deep into the actual situation and conduct a detailed and careful inspection. Election should be deep soil, fertile soil loamy-based, and easy irrigation and drainage, watermelon seedlings Zhuang Zhuang strong lay a good foundation. At the same time, the most avoid watermelon Lianzuo, should pay attention to avoid melon land. Generally planted to 5 to 7 years after the rotation, at least 34-year rotation also takes place, otherwise it will be a large area of disease, resulting in death, or even absolute.