摘要
对10年生高接换种‘立冬本’龙眼结果树的枝、叶、花、果年生长量及主要矿质营养元素需求量进行了研究。结果表明,龙眼‘立冬本’株产36.42kg,果穗与营养枝数量比为1:1.9,重量比为1:0.25。矿质营养元素年需求量为:N556.7g、P71.5g、K492.8g、Ca225.0g、Mg34.3g,N、P、K、Ca、Mg比例为1:0.13:0.89:0.40:0.06,为龙眼平衡施肥提供营养需求参考指标。
Fruiting longan cultivar‘Lidongben’trees aged 10 years old were selected to determine their annual growth of branches, leaves, flowers, fruits, and requirement of mineral nutrients. The results showed that these longan yielded 36.42 kg/tree, with the number ratio of panicles to vegetative shoots being 1：1.9 and the weight ratio of panicles to vegetative shoots being 1：0.25. The annual mineral requirements were N 0.557 kg; P 0.072 kg; K 0.493 kg; Ca 0.225 kg and Mg 0.034 kg, and the ratio of N：P：K：Ca：Mg was respectively 1：0.13：0.89：0.40：0.06, which could be considered as a reference for recommendation for application of formulated fertilizers to meet the mineral nutrients demands of longan trees.
出处
《热带作物学报》
CSCD
2010年第3期345-348,共4页
Chinese Journal of Tropical Crops
基金
国家科技基础条件平台项目(2005DKA21002-27)
国家科技支撑计划(2007BAD07B01-2)
福建省财政专项(STIF-Y06)
福建省公益类科研院所基本科研经费专项(2009-2010)
福建省农科院科技创新基金(2009QB-13)资助
关键词
龙眼
矿质营养
需求量
longan
mineral nutrient
requirement.
