绿肥还田和减量施氮对甘肃河西灌区土壤质量及燕麦产量和品质的影响

周琦, 张靖, 王振龙, 施志国, 邓超超, 常浩, 柳洋, 周彦芳

Effects of Green Manure Incorporation and Nitrogen Fertilizer Reduction on Soil Quality, Oat Yield and Quality in Hexi Irrigation District of Gansu Province

Zhou Qi, Zhang Jing, Wang Zhenlong, Shi Zhiguo, Deng Chaochao, Chang Hao, Liu Yang, Zhou Yanfang

表6 土壤肥力与燕麦生长、光合特性及产量的相关性分析

Table 6 Correlation analysis of soil fertility with oat growth, photosynthetic characteristics and yield

指标 Index	TN	AN	AK	AP	BD	PH	SD	LA	P_n	G_s	C_i	T_r	SPAD	Y	CP	EE	ST	ADF	NDF	LI
OM	0.638^**	0.825^**	0.909^**	0.604^**	-0.853^**	-0.059	0.176	0.137	-0.056	-0.043	-0.310	-0.232	-0.052	0.070	0.487^*	0.227	-0.110	-0.670^**	-0.030	-0.875^**
TN		0.792^**	0.422	0.678^**	-0.388	0.550^*	0.718^**	0.752^**	0.662^**	0.606^**	-0.830^**	0.487^*	0.598^**	0.703^**	0.757^**	0.548^*	0.555^*	-0.892^**	-0.612^**	-0.692^**
AN			0.644^**	0.835^**	-0.579^*	0.256	0.448	0.510^*	0.326	0.404	-0.641^**	0.203	0.404	0.511^*	0.627^**	0.263	0.185	-0.710^**	-0.426	-0.743^**
AK				0.434	-0.829^**	-0.244	-0.006	-0.062	-0.289	-0.226	-0.130	-0.418	-0.260	-0.163	0.412	0.133	-0.316	-0.523^*	0.326	-0.818^**
AP					-0.426	0.242	0.476^*	0.464	0.312	0.475^*	-0.579^*	0.236	0.347	0.454	0.300	0.090	0.347	-0.479^*	-0.457	-0.389
BD						0.298	-0.011	0.159	0.272	0.295	0.045	0.451	0.286	0.181	-0.206	-0.106	0.237	0.407	-0.136	0.678^**
PH							0.720^**	0.853^**	0.873^**	0.800^**	-0.818^**	0.849^**	0.829^**	0.782^**	0.546^*	0.439	0.677^**	-0.525^*	-0.616^**	-0.155
SD								0.873^**	0.883^**	0.779^**	-0.868^**	0.800^**	0.771^**	0.813^**	0.594^**	0.576^*	0.773^**	-0.702^**	-0.687^**	-0.314
LA									0.943^**	0.884^**	-0.963^**	0.904^**	0.923^**	0.925^**	0.718^**	0.589^*	0.788^**	-0.728^**	-0.750^**	-0.359
P_n										0.874^**	-0.882^**	0.940^**	0.928^**	0.919^**	0.618^**	0.573^*	0.823^**	-0.618^**	-0.817^**	-0.174
G_s											-0.862^**	0.869^**	0.882^**	0.938^**	0.547^*	0.302	0.708^**	-0.478^*	-0.684^**	-0.076
C_i												-0.818^**	-0.875^**	-0.894^**	-0.785^**	-0.601^**	-0.709^**	0.794^**	0.683^**	0.495^*
T_r													0.934^**	0.877^**	0.514^*	0.563^*	0.774^**	-0.423	-0.762^**	-0.033
SPAD														0.855^**	0.511^*	0.418	0.590^**	-0.460	-0.803^**	-0.215
Y															0.680^**	0.438	0.733^**	-0.600^**	-0.793^**	-0.228
CP																0.694^**	0.302	-0.856^**	-0.337	-0.764^**
EE																	0.384	-0.621^**	-0.393	-0.560^*
ST																		-0.469^*	-0.771^**	-0.002
ADF																			0.439	0.834^**
NDF																				0.087