高密度种植下氮肥对玉米根系生长及氮代谢的影响

周文丽, 郝淼艺, 张仁和

Effects of Nitrogen Fertilizer on Maize Root Growth and Nitrogen Metabolism under High-Density Planting

Zhou Wenli, Hao Miaoyi, Zhang Renhe

表2 产量、根系生物学特性以及生理指标的相关性分析

Table 2 Correlation analysis of yield, root biological characteristics and physiological indexes

指标Index	RIA	RRA	MRIW	MRRW	RA	RW	RSA	RV	RL	RLD	SRL	RSR	NR	GS	GOGAT	GY
RIA	1.000
RRA	0.809^**	1.000
MRIW	0.708^**	0.734^**	1.000
MRRW	0.295^*	0.194	0.306^*	1.000
RA	0.148	-0.452^**	-0.127	0.121	1.000
RW	0.330^*	0.473^**	0.609^**	-0.551^**	-0.261^*	1.000
RSA	0.582^**	0.506^**	0.529^**	0.136	0.063	0.325^*	1.000
RV	0.372^**	0.212	0.270^*	0.006	0.236	0.209	0.806^**	1.000
RL	0.600^**	0.547^**	0.596^**	0.212	0.029	0.340^**	0.767^**	0.560^**	1.000
RLD	0.583^**	0.528^**	0.591^**	0.193	0.028	0.359^**	0.692^**	0.524^**	0.969^**	1.000
SRL	0.290^*	0.319^*	0.358^**	0.209	-0.069	0.161	0.637^**	0.460^**	0.803^**	0.761^**	1.000
RSR	0.690^**	0.704^**	0.681^**	0.267^*	-0.113	0.362^**	0.600^**	0.360^**	0.657^**	0.627^**	0.266^*	1.000
NR	0.163	0.157	0.075	-0.122	-0.030	0.153	0.410^**	0.242	0.323^*	0.233	0.312^*	0.122	1.000
GS	-0.105	-0.095	0.008	-0.203	0.002	0.175	0.028	0.124	0.087	0.125	0.153	-0.088	0.064	1.000
GOGAT	0.485^**	0.368^**	0.504^**	0.287^*	0.127	0.191	0.676^**	0.563^**	0.741^**	0.718^**	0.655^**	0.521^**	0.498^**	0.142	1.000
GY	0.198	0.183	0.331^**	0.053	-0.007	0.221	0.163	0.177	0.356^**	0.425^**	0.142	0.274^*	-0.005	0.348^**	0.395^**	1.000