锦橙的营养特性与施肥技术  

Nutrient Characteristics of Sweet Orange (Citrus sinensis cv. Jinching)and the Technique of Fertilization

作　　者：周学伍[1] 吕斌[1] 李质怡[1] 陈学年[1] 程昌凤[1] 付克用 

机构地区：[1]四川省农业科学院果树研究所

出　　处：《果树科学》1996年第3期162-166,共5页Journal of Fruit Science

摘　　要：通过多年的田间与盆栽试验，探讨了锦橙营养特性与平衡施肥的关系，植株在年周期中的营养变化规律及３个营养关键期；对种植于不同土壤母质上的３种砧木锦橙进行了缺素症状观察及诱因分析；探讨了紫色土锦橙的矿质营养；提出了适宜的施肥量与营养元素比例。A series of experiments were conducted for several years to study mineral nutrition and fertilization tech-nique of sweet orange. It revealed the relationship between nutrient properties and equilibrium fertilization,and disscussed the changing law of plant nutrition during one year. The results showed that the important pe-riods of nutrition were the period of spring shoots turning green and the period of nutrients storage in autumnand winter. On alkaling purple soils, the chlorosis of orange trees which were on Poncirus trifoliata and Cit-rus reticulata cv. Hongju rootstocks were brought about by Fe,Mn,B and Mn,Zn,Fe deficiency respectively.The optimum ratio of N,K application for mature trees was l : 0.75,with N 400g and K2O 300g per tree inone year. Phosphate application showed little effect on purple soil.

关 键 词：锦橙 营养特性 施肥 

分 类 号：S666.406.2[农业科学—果树学]