迪庆州板栗低产原因及增产措施初探

迪庆州现有板栗种植面积1 200hm2,但大都属低产栗林,板栗产量较低.通过对全州板栗低产原因的调查和分析,认为实生繁殖、造林地块选择不当、造林密度不合理、病虫害严重、管理粗放是造成迪庆州板栗低产的主要原因.为此提出衰老树更新修剪,低劣品种高接换种,幼树整形修剪,加强土肥、水管理,加强病虫害防治,坚持适地适树原则,采用优良品种的嫁接苗,合理密植,配置授粉树等科学经营管理增产措施.

Preliminary Discussion on Reason for Low Yield of Chestnut and Corresponding Countermeasures in Diqing Prefecture

At present,there is 1200 hm2 of chestnut plantation area in Diqing prefecture,but most of them are low-yield chestnut forest.The survey and analysis on the reasons for that reveal that unreasonable land plot selection,unsuitable density,severe disease and insect pest,extensive management are the main reasons for low yield of chestnut.Thus,the yield could be greatly increased if some countermeasures are adopted such as pruning for regeneration,replacing inferior variety,scientific management of soil,fertilizer and water,pest and diseases prevention,as well as reasonable density and so on.