1.中甘11号:是中国农科院蔬菜所新育成的早熟、丰产的甘兰杂交种。植株开展度46-52厘米,叶色深绿,叶片倒卵形,叶面脂粉中等。叶球近圆形,叶球紧实,质地脆嫩,风味品质优良,不易裂球。冬性较强,不易先期抽苔,抗干烧心。从定植到成熟约50天,单球重0.8—1公斤,亩产3000-3500公斤,比同类品种增产20％左右。在华北地区一般在12月下旬至1月初冷床播种,或用改良阳畦、温床、电热温床、温室,于1月中下旬播种,2月中下旬分苗。苗床应控制温度,防止幼苗生长过旺、过大。定植不可过早,一般在3月下旬至4月上旬,幼苗以6—7片叶为宜,宜采用两次7天左右的小蹲苗,以控制生长前期苗子生长过旺。由于种子皮薄,可直播干籽,以提高发 1. Zhong Gan 11: Chinese Academy of Agricultural Sciences is the newly bred vegetables, the high-yielding cabbage hybrids. The degree of 46-52 cm plant development, dark green leaves, obovate leaves, foliar lipid medium. Round nearly spherical leaves, leaves tight ball, crisp texture, flavor quality, not easy to crack the ball. Strong winter, not easy to early bolting, anti-dry heart. From colonization to maturity of about 50 days, single ball weight 0.8-1 kg, 3000-3500 kg per mu, 20% more than similar varieties. In North China generally cold bed planting in late December to early January, or with improved sunburn, hotbed, electric hotbed, greenhouse, sown in late January, mid-late February seedlings. Seedbed should be controlled temperature, to prevent overgrowth of seedlings, too large. Colonization can not be premature, usually in late March to early April, seedlings to 6-7 leaves is appropriate, it is appropriate to use twice about 7 days small squat seedlings to control the growth of early seedling over-growth. Due to the thin seed coat, can be dried direct seeding to improve hair