不同用量风化煤腐殖酸对玉米根系的影响
周丽平,袁亮,赵秉强,李燕婷,林治安

Response of Maize Roots to Different Additive Amounts of Weathered Coal Humic Acids
ZHOU LiPing,YUAN Liang,ZHAO BingQiang,LI YanTing,LIN ZhiAn
图1 不同用量腐殖酸的玉米轴根数和轴根长度
Fig. 1 The number and length of maize axial roots with different additive amounts of humic acids