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兰竹荔枝叶片营养元素适宜含量的研究
王仁玑; 庄伊美; 谢志南; 陈丽璇; 李来荣;   
福建省亚热带植物研究所
摘要:
本研究旨在探讨福建荔枝最重要品种兰竹的叶片营养元素适宜含量。统计分析表明,不同地点、年份对同一品种叶片元素含量存在明显的差异;荔枝叶片含氮量变异系数最小,并按磷、镁、钙、钾依次增大。本研究初步提出的丰产兰竹荔枝秋梢叶片营养元素适宜含量为:氮1.5—2.2%,磷0.12—0.18%,钾0.7—1.4%,钙0.3—0.8%,及镁0.18一0.88%;其叶片氮、磷、钾、钙、镁的适宜比例是1:0.08:0.57:0.30:0.12。上列指标可供荔枝营养诊断指导施肥之参考。
关键词:  兰竹荔枝  变异系数  营养诊断  叶片元素适宜含量  
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