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荔枝秋梢的营养状况研究
引用本文:林雄, 张孝祺, 李崇阳, 申秀华. 荔枝秋梢的营养状况研究[J]. 华南师范大学学报(自然科学版), 2001, (4): 98.
作者姓名:林雄  张孝祺  李崇阳  申秀华
作者单位:广东省农业科学院农业生物技术研究所,广东广州510640
摘    要:本研究通过了解荔枝秋梢叶片中N、P、K大量元素的水平高低 ,动态变化与种植地点、品种、季节变化的关系 ,提出合理施用N、P、K的配比及依据 .1 材料与方法从 1 990年开始 ,在广东省内东莞大岭山 (山地赤壤 )、广州钟落潭 (水田红砂壤 )、从化街口(坡地红壤 ) 3个点 ,每个点各选用 1 0株生长相对一致的 1 5- 2 5年生淮枝和糯米糍荔枝做试材 .在选用的同树龄、同品种树上进行秋梢叶片观察和取样测试 ,以平均分配方位法于每树冠取 50片叶 ,每点 1 0株共取 50 0片叶混合粉碎后测定其N(蒸溜滴定法 )、P(钒钼黄比色法 )、K(四苯硼钠重量…

关 键 词:荔枝 秋梢 合理施肥 营养状况 氮 磷 钾 动态变化 种植地点
文章编号:1000-5463(2001)04-0098-03

STUDY ON THE PHYSIOLOGY OF NUTRITION IN AUTUMN SHOOTS OF LITCHI
LIN Xiong,ZHANG Xiao-qi,LI Chong-yang,SHEN Xiu-hua. STUDY ON THE PHYSIOLOGY OF NUTRITION IN AUTUMN SHOOTS OF LITCHI[J]. Journal of South China Normal University(Natural Science Edition), 2001, 0(4): 98-100
Authors:LIN Xiong  ZHANG Xiao-qi  LI Chong-yang  SHEN Xiu-hua
Abstract:The research results in last 10 years showed that the contents of the macro-elements in autumn shoots of Litchi decreased in the order of N, K and P, which was not related to environment and variety, but notably to season. The contents of P and K in leaves of autumn shoots decreased rapidly, but the content of N did not change at the flowering and fruit bearing stages. The autumn shoots developed into fruit branches, and Litchi yield was significantly correlated to contentsof N, P and K in leaves of autumn shoots; Litchi yield was significantly correlated to the content of N and P at the flowing stage, it was significantly correlated to the content of K at the maturity stage. Rreasonable ratio among N, P and K was one of important measures to achieve high and stable yield in Litchi.
Keywords:Litchi  autumn shoots  N  P  K  
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