兰竹荔枝矿质营养状况与化学调控的影响  

Status of Mineral Nutrition of Litchi chinensis and Effect of Chemicals on Controlling its Nutrition Condition

作　　者：戴良昭[1] 郭仰楚 谢希尧[1] 

机构地区：[1]福建省农科院果树研究所

出　　处：《福建省农科院学报》1995年第1期48-53,共6页

摘　　要：本文探讨兰竹荔枝矿质营养状况和动态规律，化学药剂对荔枝矿质营养的调控作用。结果表明，兰竹荔枝矿质营养含量变幅较大，周年营养含量表现明显季节性变化，以围绕花、果实增长和枝梢建造而变化。树体营养水平直接影响荔枝产量，叶片含氮和含钾在花前，含磷在花期和花后与产量构成显著相关性。以花器含氮、磷、钾最高，开花消耗大量营养，是荔枝花期和花后氮、磷、钾含量迅速下降的主要原因。花器和叶片营养含量与花构成显著相关性，直接影响花量和花质，特别是雌、雄花的比例。化学药剂直接影响树体矿质营养水平，特别是对花器含氮和含磷的影响更明显。This paper reviewed the nutrition condition and its dynamic transportation of Litchi chi- nensis Sonn., the controlling effect of chemicals on the mineral nutrition of litchi tree, The results showed that, the flutuation range of mineral nutrition content in Litchi chinensis Sonn. was rather wide, and appeared a seasonal variation, which showed to be related to the flowering, fruit-grow─ing and branch building periods in all the year. The nutrient level of tree body directly affected the fruit yield.N, K contents in leaves before the flowering, P content during and after flowering peri-ods were signi ficantly related to the yield structure. The highest N,P, K contents were found in flowering organ, the flowering consumed large amount of nutrition, which served the main reason of the rapid decrease of N,P, K contents during and after the flowering period. The nutrient con-tents containing in flowering organ and leaves were significantly related to the flower constructure, and directly affected the flower quantity and quality, espetially the proportion of male and female flowers. Chemical agents directly affected the mineral nutrition level in tree body, espetially the N,P contents in flowering organ.

关 键 词：荔枝 兰竹荔枝 矿质营养 化学药剂调控 

分 类 号：S667.101[农业科学—果树学]