冬小麦播种期应该怎样根据土壤肥力而改变,有关作物的不同播种期是否要改变施肥量及施肥时间?这个问题,至今没有一致结论。在生产中,冬小麦的播种有早播、适期播和迟播之分,它对营养元素的摄取量因播期有很大差异。如作者在1977—1979年的试验中, How winter sowing should change according to soil fertility, whether the different sowing date of the crop is to change the amount of fertilizer and fertilization time? There is no unanimous conclusion so far. In production, winter wheat sown early sowing, sowing and sowing timely broadcast points, its intake of nutrients due to sowing date are very different. As the author in 1977-1979 experiments,