北京地区大白菜栽培技术（一）蔬菜世界（一）茬口安排北京地区结球大白菜主要是秋播，前茬作物近郊区多为瓜、果、豆类菜，如黄瓜、西葫芦、西红柿、早茄子、早大椒和菜豆等。还有葱蒜类、甘蓝类等；菜粮边缘地区并以蔬菜为主营者，前茬和近郊区一样，如以粮田为主营者，... Chinese Cabbage Cultivation Techniques in Beijing (I) Vegetable World Arrangements for Stubble Crops The main reason for the Chinese cabbages to catch water in Beijing is that autumn Chinese cabbage is the mainstay of autumn harvesting. The crops in the suburbs of the former crop are mostly melons, fruits and beans, such as cucumbers, zucchini, tomatoes, Eggplant, early peppers and beans and so on. There are all kinds of onion and garlic, cabbage and other categories; food margins and vegetables as the main camp, the former crop and the suburbs, such as grain-based operators, ...