施氮对不同水分条件下紫花苜蓿氮素吸收及根系固氮酶活性的影响

高丽敏, 苏晶, 田倩, 沈益新^*

Effects of nitrogen application on nitrogen accumulation and root nitrogenase activity in Medicago sativa at different soil water contents

GAO Li-min, SU Jing, TIAN Qian, SHEN Yi-xin^*

紫花苜蓿氮素积累量与生物量间的相关关系