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

表2 腐殖酸对玉米根系活力的影响

Table 2 Effects of humic acids on maize root activities

处理 Treatment TTC还原强度 Root activity (mg·g-1·h-1) TTC还原总量 Root TTC reducing amount (mg·h-1) CK 2.17±0.34 c 9.95±2.42 d HA1 2.80±0.11 b 14.37±1.31 c HA2 3.67±0.23 a 23.49±0.65 a HA3 3.23±0.15 ab 17.46±1.62 b HA4 3.03±0.31 b 16.72±0.43 bc HA平均 Average 3.18 18.01 HA变异系数 CV 0.12 0.22