一、适期播种,培育壮苗适期播种对调整群体、培育壮苗越冬极为有利。壮苗需≥0℃以上的有效积温480～550℃,若积温超过600℃会形成旺苗,而小于300℃则形成弱苗。因此,秋播温度15～18℃为适播期。故拜城县冬麦适宜播种期在9月15日前后5～10天,新冬18号高产田应在9月15日播种最佳。二、因地制宜,适当降低播种量,减少基本苗 First, the appropriate sowing, nurturing seedlings suitable for sowing adjustment group, cultivating strong seedlings wintering extremely favorable. Seedlings need ≥0 ℃ above the effective accumulated temperature 480 ~ 550 ℃, if the accumulated temperature exceeds 600 ℃ will form Wang seedlings, and less than 300 ℃ is the formation of weak seedlings. Therefore, autumn sowing temperature 15 ~ 18 ℃ suitable sowing period. Therefore, the suitable sowing date for Baicheng winter wheat is between 5 and 10 days before and after September 15, and the high-yielding winter field No. 18 should be sown optimally on September 15. Second, according to local conditions, appropriate to reduce seeding, reduce the basic seedlings