长期定位条件下不同氮肥运筹对春玉米根冠发育的影响
李喆豪, 姬米源, 吕梦, 明博, 李少昆, 张海艳, 谢瑞芝

Effects of Different Nitrogen Fertilizer Management Strategies on the Root and Shoot Development of Spring Maize under Long-Term Positioning Conditions
Li Zhehao, Ji Miyuan, Lü Meng, Ming Bo, Li Shaokun, Zhang Haiyan, Xie Ruizhi
图4 不同处理间根冠比的动态变化
Fig.4 Dynamic of root-shoot ratio among different treatments