秋结球大白菜栽培面积大,产量高,上市集中,产值较低。在秋菜上市前的秋淡季,特别是九月下旬到十月下旬的一个月中,市场上需要一定数量、质量好的大白菜。如果采取一些技术措施,能使大白菜提早上市,在大量上市之前供应,既调节了市场的花色品种,又大大增加了菜农的收入。大白菜早熟栽培的播期一般在七月中下旬,当时正处在盛夏酷暑,有时高温干旱,有时大雨连绵,病虫害易发生。因此,早熟大白菜栽培成败的关键是选用适宜的品种,采取一系列栽培防病措施,减轻不利气候的影响,立足于抗病夺丰收。 (一) 因地制宜地选用品种早熟栽培宜选用耐热、抗病、生长期短、 Autumn knot cabbage cultivation area, high yield, market concentration, lower output value. In the fall autumn season before the autumn vegetables, especially in late September to late October, the market needs a certain amount of good quality Chinese cabbage. If you take some technical measures, make cabbage early market, supply in large quantities before the market, both to adjust the color varieties of the market, but also greatly increased the income of vegetable farmers. Early sowing Chinese cabbage sowing generally in late July, when it is in the summer heat, and sometimes high temperature and drought, and sometimes heavy rains, pests and diseases prone. Therefore, the key to the success or failure of precocious cabbage cultivation is selecting suitable varieties and adopting a series of cultivation and disease prevention measures to alleviate the adverse climate impact. (A) selection of pre-cultivated varieties of local conditions should choose heat-resistant, disease-resistant, short growth period,