施钾水平对纽荷尔脐橙养分、产量和品质的影响

张绩,李俊杰,万连杰,杨江波,郑永强,吕强,谢让金,马岩岩,邓烈,易时来

Effects of Potassium Application Levels on Nutrient, Yield and Quality of Newhall Navel Orange

ZHANG Ji,LI JunJie,WAN LianJie,YANG JiangBo,ZHENG YongQiang,LÜ Qiang,XIE RangJin,MA YanYan,DENG Lie,YI ShiLai

表8 叶片、枝条、土壤钾含量与果实养分间的相关性

Table 8 Correlation between potassium content in leaves or twigs or soil and fruit nutrients

成分 Parameter	果实养分含量 Nutrient content in fruit			果实带走养分量 Nutrient removal amount of fruit
成分 Parameter	N	P₂O₅	K₂O	N	P₂O₅	K₂O
春梢叶片钾含量 Potassium content in spring leaves	0.205	0.394	0.561^*	0.821^**	0.566^*	0.888^**
春梢枝条钾含量 Potassium content in spring twigs	-0.025	0.397	0.263	0.580^*	0.418	0.691^**
秋梢叶片钾含量 Potassium content in autumn leaves	0.030	0.170	-0.146	0.253	-0.014	0.462
秋梢枝条钾含量 Potassium content in autumn twigs	0.068	0.156	-0.056	0.356	0.079	0.540^*
土壤速效钾含量 Soil available potassium content	-0.043	-0.081	-0.524^*	-0.739^**	-0.373	-0.745^**