The technology of training and pruning is key for the cultivation and management of walnut in Yunnan .Based on the thorough understanding of walnut growth rules , the technology of training and pruning was improved by walnut's characteristics of germinate , growth and fruiting to achieve early fruit-ing, high and stable yield , and high quality and efficiency .Problems of high plantation density , early canopy closure , fruit branch quick shifing outwards , disordered tree structure and improper operation ex-isted in cultivation and management of walnut , which affected the yield and quality of walnut in Yunnan . This paper put forward the countermeasures to improve the ventilation and optical conditions of orchard by lower plantation density , regulate growth by pruning to adjust tree structure , decrease tree height with open-center form to control the height of crown , and balance each part and organ of the tree .%整形修剪是云南核桃栽培管理中一项十分重要的技术措施.只有在充分认识核桃树生长发育规律的基础上,根据生长、发育、结果特性,不断地改进和完善整形修剪技术,才能达到早实、丰产、稳产、优质、高效的栽培目的.目前在云南省核桃栽培管理中普遍存在定植密度过大,果园过早郁闭,结果部位迅速外移,树体结构紊乱,修剪技术应用不当等问题,影响了核桃干果的产量和质量.籍此,提出降低定植密度,改善果园通风透光条件;调整树体结构,稳势修剪;落头开心,控制树冠高度;调节树体各部分、各器官之间的平衡等对策.
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