小麦精播高产栽培在北京地区推广是可行的。可有效防止高产倒伏，是北京地区小麦亩产稳定突破４５０ｋｇ的重要技术体系；生产中最大面积推广品种京４１１和京冬８均适合搞精播；最佳精播时间为９月２０～２６日，可推迟到９月３０日；与目前生产比较，基本苗平均降低８～１２万，亩省种５ｋｇ左右；增加底氮比例到５５％～７０％，提高磷、钾肥用量；春季管理追肥提前到小花后期，拔节前期；不浇返青水；氮肥利用率提高，产量提高８％～１２％，主要增加穗粒重；南郊农场产二代２ＢＪＭＦ精播机，可实现排种均匀，单口流量比较一致 Wheat sowing high-yielding cultivation in Beijing is feasible. Can effectively prevent high yield lodging, is an important technical system of wheat 450kg in Beijing stable and stable breakthrough; the production of the largest area to promote varieties Jing 411 and Jingdong 8 are suitable for engaging in precision broadcast; the best precision broadcast time for September 20 to 26 , Can be postponed to September 30; compared with the current production, the basic seedlings reduce the average of 8 to 120,000 acres of species about 5kg; increase the proportion of the end of nitrogen to 55% to 70%, increase the amount of phosphorus and potassium fertilizer; To the late flowering, early jointing; not poured back to green water; nitrogen utilization rate increased, the yield increased by 8% to 12%, mainly to increase grain weight; second farm 2BJMF sowing machine produced in the southern suburbs can achieve a uniform row, single port flow comparison Consistent