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一、选地南瓜采种地应选在海拔800米以上、土质肥沃、灌溉方便、不重茬、隔离条件在2000米以上、无霜期140天以上的凉爽地带。采种地附近不要种植小麦、棉花、蔬菜等早期易发生蚜虫危害的作物,周围少杂草,无冬菠菜等蚜虫越冬寄主。
First, the election pumpkin mining seedling should be selected at an altitude of 800 meters above the fertile soil, irrigation convenient, not heavy cropping, isolation conditions in 2000 meters above the frost-free period of more than 140 days in the cool zone. Do not grow wheat, cotton, vegetables and other crops prone to early aphids in the vicinity of the seed collection area, with less weeds and no winter spinach and other aphids overwintering.