有机培肥措施对马铃薯光合特性、养分含量及产量的影响

张乐, 韩云飞, 杜二小, 李保成, 伞薪潼, 刘新雨, 王艳莉, 赵沛义, 任永峰

Effects of Organic Fertilization Measures on Photosynthetic Characteristics, Nutrient Content and Yield of Potato

Zhang Le, Han Yunfei, Du Erxiao, Li Baocheng, San Xintong, Liu Xinyu, Wang Yanli, Zhao Peiyi, Ren Yongfeng

表1 马铃薯LAI、SPAD值、P_n与养分积累量、干物质积累量之间的相关关系

Table 1 The correlation between LAI, SPAD value, P_nrate and nutrient accumulation, dry matter accumulation of potato

指标Index	LAI	SPAD	P_n	干物质积累量Dry matter accumulation
LAI	－	0.966^*	0.977^*	0.993^**
SPAD	0.966^*	－	0.906	0.990^*
P_n	0.977^*	0.906	－	0.950^*
N	0.997^**	0.983^*	0.960^*	0.999^**
P	0.995^**	0.985^*	0.965^*	0.998^**
K	0.989^*	0.991^**	0.955^*	0.997^**
干物质积累量Dry matter accumulation	0.993^**	0.990^*	0.950^*	－