三峡重庆库区施氮水平对塔罗科血橙树体养分、产量品质及土壤理化性质的影响

杨江波,张绩,李俊杰,郑永强,吕强,谢让金,马岩岩,邓烈,何绍兰,易时来

Effects of Nitrogen Application Levels on Nutrient, Yield and Quality of Tarocco Blood Orange and Soil Physicochemical Properties in the Three Gorges Area of Chongqing

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

表8 土壤、叶片氮含量与果实产量、品质的相关性

Table 8 Correlation between Nitrogen content in soil and leaves and fruit yield and quality (n=18)

成分 Parameters 可溶性固形物 TSS 可滴定酸 TA 固酸比 TSS/TA 维生素C Vc 花色苷 Anthocyanin 果皮厚度 Pericarp thickness 产量 Yield 春梢叶氮含量 Nitrogen content in spring leaves -0.257 0.358 -0.278 0.103 0.246 0.568* 0.394 秋梢叶氮含量 Nitrogen content in autumn leaves -0.319 0.493* -0.568* 0.137 0.149 0.520* 0.345 碱解氮含量 Available nitrogen content -0.353 0.635** -0.719** 0.264 -0.047 0.917** -0.206