针对龙陵县部分核桃树老化、中幼树低产及新植技术缺乏的难题，结合龙陵县规划改造和新植任务的实际，对核桃老树更新复状、低产园改造及新植技术分年度进行了丰产栽培实验示范研究，建设核桃新植示范点10个，总结出核桃新植“十个一”技术，使新植桃核的成活率及保存率明显提高，可提前3年挂果进入收益期；通过核桃示范点与传统种植对比分析以及核桃更新复壮前后和核桃低产园改造前后对比分析，结果表明，核桃衰老树更新复壮和低产中幼树改造技术，使树势明显恢复，病虫鼠害明显减少，能促进增产增收，达到高产稳产，经济效益明显，是核桃老区和低产区快速发展核桃产业的有效方法。%In consideration of problems as the aging of some walnut trees , low yielding of young and mid-dle age trees as well as lacking of new cultivation techniques in Longling county , integrated with the plan-ning reform and new plantation mission , demonstration experiment of high yielding cultivation techniques on walnut tree aging , low yielding orchids reform and new cultivation techniques have been conducted an-nually .10 new cultivation walnut demonstration spots have been established and 11 new plantation tech-niques have summarized .The survival rate and conservation rate of the newly planted walnut trees have been improved significant .The newly planted trees can enter into fruiting and earning period 3 years ear-lier.By comparing the demonstration and traditional plantation , results shows that the rejuvenated aging trees and reconstructed low yielding orchids have much better tree shape , less diseases and higher yield-ing than control .This new cultivation technique can obviously increase yielding and earning to reach high and stable yields with remarkable economic effects , and is an effective way to develop walnut industry in old low yielding walnut plantation areas .
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