热带作物学报2013，Vol.34Issue(6)：1045-1049,5.DOI:10.3969/j.issn.1000-2561.2013.06.009
腰果叶片氮磷钾年周期变化及再吸收效率
Annual Variation and Resorption Characteristic of Leaf N, P and K of Cashew
摘要
Abstract
Six years old cashew clone FL30 was employed to investigate the annual variation characteristic of N,P and K of cashew leaf.The resorption characteristic of N,P and K of old cashew leaf was analyzed.The results indicated that the concentration of N,P and K of cashew leaf changed with the cashew growth period.The concentration of N increased from flush period to fruit maturation period,declined obviously after fruit matured,but didn't change too much in dormant period.The concentration of P declined from flush period to initial fruit set period,and then increased until dormant period.The variation characteristic of leaf N/P was similar with leaf N concentration.Leaf K concentration declined during flush period,increased suddenly at initial flowering period,continually increased slowly in full flowering and fruit set period,and then declined from fruit growth period to dormant period.The concentration of N,P and K of mature cashew leaf was obviously higher than that of cashew old leaf.The nutrient resorption efficiencies of N,P and K were high,and the order was REp＞REN＞REK.关键词
腰果/氮磷钾/年周期变化/再吸收效率Key words
Cashew/ NPK/ Annual variation/ Nutrient resorption efficiency分类
农业科技引用本文复制引用
王金辉,黄海杰,黄伟坚,张中润,梁李宏..腰果叶片氮磷钾年周期变化及再吸收效率[J].热带作物学报,2013,34(6):1045-1049,5.基金项目
中央级公益性科研院所基本科研业务费专项(No.PZS078、No.1630032013019、No.1630032012024) （No.PZS078、No.1630032013019、No.1630032012024）
科技部对发展中国家科技援助项目(2010-2011、2011-2012) （2010-2011、2011-2012）
非营利性科研机构改革启动经费(No.PZS-201206) （No.PZS-201206）
海南省自然科学基金项目(No.310091) （No.310091）
国家农作物种质资源平台-热带作物种质资源标准化整理、整合及共享运行服务项目. （）
