为了探明核桃树体氮磷钾营养分布,推动核桃合理施肥,以10年龄辽核1号为试材,于果实采收期对其进行整株采样肢解。结果表明,多年生营养器官是干质量分配的主体,一年生器官占总干重的28.6%,其中主要是叶片和果实;多年生器官占61.5%,根系占9.9%。各器官中氮、磷、钾含量差异明显,氮的含量以种仁中最高,其次是叶片;磷含量以种仁中最高,青皮次之;钾 In order to find out the nutrition distribution of N, P and K in walnut tree and promote the reasonable fertilization of walnut, the 10-year-old Liaodong 1 was taken as the test material, and the entire plant was sampled and dismembered during the harvesting period. The results showed that perennial vegetative organs were the main body of dry weight distribution. Annual organs accounted for 28.6% of the total dry weight, mainly of leaves and fruits; perennial organs accounted for 61.5% and roots accounted for 9.9%. The contents of nitrogen, phosphorus and potassium in different organs were significantly different. The content of nitrogen was the highest among the kernels, followed by the leaves. The content of phosphorus was the highest among the kernels,