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作 者 ：卢丽兰, 甘炳春, 魏建和, 许明会, 王旭东

期 刊 ：植物营养与肥料学报 2011年 17卷 1期 页码：202-208

关键词：槟榔；氮；磷；钾；产量水平；生长年限；黄化病；

Keywords:areanut (Areca catechu L.), nitrogen, phosphorus, potassium, production levels, growth years, yellow leaf disease,

摘 要 ：采用田间调查与实验室分析相结合，探讨海南地区不同产量水平、不同生长年限、正常结果与黄化槟榔叶片氮、磷、钾含量变化规律。结果表明，槟榔叶片氮、磷、钾比例约为1∶0.081∶0.356。高产组槟榔叶片平均氮含量比中高产组和中产组的分别高10.45%和21.73%; 而比低产组槟榔叶片的高了36.86%。正常结果树（低产组槟榔）叶片平均氮含量比黄化组（轻）和黄化组（重）的分别高10.15%和19.49%; 黄化组（轻）槟榔叶片平均氮含量比黄化组（重）的高11.61%。高产组槟榔叶片平均磷含量比中高产组和中产组的分别高10.71%和13.64%; 而比低产组槟榔叶片的高17.02%。正常结果槟榔（低产组）叶片平均磷含量比黄化组（轻）和黄化组（重）的分别高10.87%和18.48%; 黄化组（轻）槟榔叶片平均磷含量比黄化组 （重）的高8.5%。高产组槟榔叶片平均钾含量比中高产组和中产组的分别高17.24%和25.00%; 而比低产组槟榔叶片的高31.96%。正常结果槟榔（低产组）叶片平均钾含量比黄化组（轻）和黄化组（重）的分别高15.15%和19.42%; 黄化组（轻）槟榔叶片平均钾含量比黄化组（重）的高5.03%。不同生长年限槟榔叶片氮、磷、钾含量有所差异，随着树龄增加，高产组槟榔叶片氮、磷、钾含量比较低产组的高。槟榔叶片氮含量最高，钾次之，磷最低。氮磷钾含量对槟榔产量提高有很大影响，槟榔黄化病可能引起叶片中N、P、K含量降低。

Abstract:Aimed to analyze the content of N, P and K of betel leaves, the normal leave the ones with yellow leaf disease were collected from fruit-bearing arecanut (Areca catechu L.) with different production levels, at different growth years in Hainan. The results showed the ratio of N∶P∶K was 1∶0.081∶0.356 in arecanut leaves. The average N contents in high-yield group（HYG）were 10.45%, 21.73% and 36.86% higher than those in middle high-yield (MHYG), middle-yield group(MYG), and low-yield group (LYG), respectively. The average N contents in normal arecanut leaves (low-yield group betel) were 10.15% and 19.49% higher than those in light yellow leaf disease group (LYLDG) and in severe yellow leaf disease group (SYLDG). The average P contents in HYG were 10.71% and 13.64% higher than those in MHYG and MYG, respectively, and with 17.02% higher than those of LYG. The average P contents in normal arecanut leaves (LYG) were 10.87% and 18.48% higher than those in LYLDG and in SYLDG. The average K contents in HYG were 17.24% and 25.00% higher than those in MHYG and MYG, respectively, and with 31.96% higher than those of LYG. The average K contents in normal arecanut leaves (LYG) were 15.15% and 19.42% higher than those in LYLDG and in SYLDG; and those were 5.03% higher in LYLDG than SYLDG. The contents of N, P and K in leaves collected from arecanut at different growth years were different. The content of N in arecanut leaves was the highest, followed by K and P. The contents of N, P, K had a great influence on the arecanut production, and the yellow leaf disease had a negative impact on the arecaunut production.

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