一、复种1．复种甘蓝。选择中熟甘蓝如京丰一号等，亩用种量在50克左右，5月末在畦内育苗。菠菜籽采收后，作畦定植甘蓝。定植株行距在40X50cm、甘蓝亩产量在7500公斤左右。2．复种矮生菜豆。早熟架豆（双季豆）、旱黄瓜、水黄瓜、秋菠菜、胡萝卜、大白菜、大萝卜、香菜、芹菜 First, multiple crop Multiple seed cabbage. Choose medium-sized cabbage, such as Beijing-Feng 1, etc., acres with about 50 grams of species, in late May nursery within the 畦. After the harvest of spinach seeds, planting 甘 planted cabbage. Planting line spacing 40X50cm, cabbage yield per mu at 7500 kilograms. 2. Multiple crop dwarf beans. Ripening beans (double beans), dry cucumber, cucumber water, autumn spinach, carrots, cabbage, radish, parsley, celery