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[目的]探究周麦22在小麦/玉米一体化条件下,周年氮肥用量及分配比例。[方法]研究周麦22在不同氮肥量及不同分配比例下的生长及产量变化规律。[结果]随全年氮肥施用量及氮肥由玉米向小麦分配率的增加,周麦22群体生理指标呈现增加趋势,而产量呈先增后降低的变化趋势。[结论]小麦玉米一体化全年施氮肥600 kg/hm2及5∶5的分配比例,有利于周麦22及全年高产。
[Objective] The research aimed to study the annual amount and distribution proportion of nitrogen fertilizer under the condition of integration of wheat and maize. [Method] The law of growth and yield of Zhoumai 22 under different nitrogen fertilizer rates and different distribution ratios was studied. [Result] With the application of nitrogen fertilizer and the increase of nitrogen fertilizer from corn to wheat in the whole year, the physiological indexes of Zhoumai 22 showed an increasing trend, while the yield increased first and then decreased. [Conclusion] The distribution ratio of 600 kg / hm2 and 5: 5 of nitrogen fertilizer in wheat and maize in whole year was in favor of Zhoumai 22 and the annual high yield.