Abstract: The nutrient ingredients and quality characters of fruits, N, P, K contents in leaves of longan leading varieties Dawuyuan, Shixia and Chuliang in Guangxi were analyzed. The results showed that there was a definite correlation between nutrient ingredients of fruits and N, P, K contents in leaves. The ranges of N, P, K contents in leaves of longan varieties in fertile orchards were Dawuyuan 1.5×10^-2~1.9×10^-2, 0.08×10^-2~0.12×10^-2, 0.48×10^-2~0.64×10^-2, respectively; Shixia 1.5×10^-2~1.7×10^-2, 0.09×10^-2~0.10×10^-2, 0.39×10^-2~0.56×10^-2, respectively; Chuliang 1.4×10^-2~1.8×10^-2, 0.08×10^-2~0.11×10^-2, 0.38×10^-2~0.62×10^-2, respectively.

Key words: longan, fruit, leaf, nutrient ingredient

摘要： 对广西三个龙眼主栽品种"大乌圆"、"石硖"和"储良"进行果实性状和营养成分、叶片N、P、K含量分析,结果表明:各品种果实营养成分之间及其与叶片N、P、K含量之间有一定的相关性;初步提出广西丰产龙眼叶片N、P、K含量范围:"大乌圆"1.5×10^-2~1.9×10^-2, 0.08×10^-2~0.12×10^-2,0.48×10^-2~0.64×10^-2;"石硖" 1.5×10^-2~1.7×10^-2,0.09×10^-2~0.10×10^-2,0.39×10^-2~0.56×10^-2; "储良"1.4×10^-2~1.8×10^-2,0.08×10^-2~0.11×10^-2,0.38×10^-2~0.62×10^-2。

关键词: 龙眼, 果实, 叶片, 营养成分