海南槟榔园土壤养分含量变化研究  

Dynamic Analysis of Nutrients in Arecanut(Areca catechu L.) Soil of Hainan

作　　者：卢丽兰[1,2] 甘炳春[1,2] 魏建和[1,2] 许明会[1,2] 王旭东[3] 

机构地区：[1]中国医学科学院药用植物研究所海南分所,海南万宁571533 [2]海南省南药资源保护与开发重点实验室,海南万宁571533 [3]西北农林科技大学资源与环境学院,陕西杨凌712100

出　　处：《西北农业学报》2010年第11期178-185,共8页Acta Agriculturae Boreali-occidentalis Sinica

基　　金："十一五"国家科技支撑计划课题"重点道地南药良种选育及规范化生产关键技术研究"(2007BAI27B03);海南省自然基金(310107)

摘　　要：以海南不同生长条件下槟榔种植园土壤为材料,分析了不同产量水平、不同生长年限以及正常结果与黄化槟榔土壤氮、磷、钾等养分含量变化。结果表明,槟榔园土壤养分含量皆处于较低水平。槟榔土壤养分含量随槟榔产量降低而下降。槟榔土壤有机质、全氮、全磷和全钾平均含量随着槟榔生长年限增加而有所下降,高产组槟榔土壤全氮、有机质减少量比低产组的偏低,高产组槟榔土壤全磷和全钾减少量比低产组的偏高;而槟榔土壤碱解氮、速效磷、速效钾平均含量随着槟榔生长年限增加而有所上升,高产组槟榔土壤碱解氮增加量比低产组的偏高,高产组槟榔土壤速效磷和速效钾增加比低产组的偏低,除了全氮含量差异表现不明显,黄化槟榔土壤有机质、全磷、全钾、碱解氮、速效磷、速效钾平均含量比正常结果槟榔土壤和对照土壤的低。此外,黄化(重)槟榔土壤有机质、全磷、全钾、碱解氮、速效磷和速效钾平均含量比黄化(轻)的低。槟榔土壤中氮、磷、钾和有机质含量高低对槟榔产量有很大影响,低含量的氮磷钾和有机质等养分的土壤可能会导致槟榔黄化病发生和恶化。Arecanut（Areca catechu L.） soil samples were collected in different parts of arecanut planting areas.The objective of study was to analyze the content dynamic of N,P,K and other nutrition in arecanut soil in the normal and yellow leaf disease planting areas under different yield levels and different growth ages.The results showed that the nutrient（N,P,K and organic matter etc） contents of all arecanut soil were at lower levels,and had a decrease trend with arecanut yield declining.The average contents of organic matter,total N,total P,and total K in soil all declined as the arecanut growth ages extending,however,those of available N,available P,and available K in soil all increased.Except for total N,the average contents of organic matter,available N,P and K in soil of yellow leaf disease arecanut were lower than those of normal and the control ones,moreover,those in soil of severe yellow leaf disease arecanut were lower than those of the gentle ones.The levels of soil nutrition（N,P,K,organic matter etc）have a great impact on the production of arecanut;the low levels of N,P,K,organic matter and other nutrients may lead to yellow leaf disease and deterioration

关 键 词：槟榔土壤 氮 磷 钾 有机质 

分 类 号：S158[农业科学—土壤学]