【摘 要】
：
随着黄淮海夏玉米区小麦机收与夏玉米机播程度的提高,小麦收获时割茬高度对夏玉米播种、出苗及生长发育的影响日趋显现,特别是随着玉米精播机具的应用,对播种质量要求越来越
【机 构】
：
中国农业大学农学与生物技术学院,北京100193中国农业大学吴桥试验站061802
论文部分内容阅读
随着黄淮海夏玉米区小麦机收与夏玉米机播程度的提高,小麦收获时割茬高度对夏玉米播种、出苗及生长发育的影响日趋显现,特别是随着玉米精播机具的应用,对播种质量要求越来越高.此外,黄淮海夏玉米播种期正处于干旱时期,土壤水分不足会导致出苗率差,田间整齐度低,进而影响产量形成.因此,研究小麦留茬高度及夏玉米机械播种方式对夏玉米机播质量、苗期长势及产量的影响,对实现该区机械化与玉米栽培措施的协调及玉米高产与高效生产的同步提高具有重要意义.
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