滇中高原退化山地圆柏幼林对施肥的效应研究  

The Research on the Effects of Fertilization to Young Plantation of Sabina chinensis in Yunnan Degradation of Mountain

作　　者：江期川[1] 郎南军[1] 杨旭[1] 郭玉红[1] 郑科[1] 张立新[1] 

机构地区：[1]云南省林业科学院,云南昆明650204

出　　处：《科技信息》2010年第13X期5-6,共2页Science & Technology Information

基　　金：国家"十一五"科技支撑计划(No.2006BAD03A10-04);"云南省高原山地抑螺防病林试验示范项目(林计批字[2007]530号)

摘　　要：[目的]探索滇中高原退化山地圆柏幼林的施肥效应。[方法]采用环状施肥,在云南省会泽县24块样地进行施肥试验。[结果]施肥量与成活率呈负相关,降幅达到1.7%～17.6%;每种施肥处理均对树高、胸径与蓄积量有显著影响,其中NPK处理对圆柏树高、胸径与蓄积量增长均为最大,增长幅度分别为29%,31%,192%;[结论]施肥能不同程度地增加圆柏的生长,同时得出氮、磷、钾理论最佳施用量为每667m2施纯N21.22kg、P2O510.64kg、K2O9.83kg。[Objective] The study ami ed to explore the fertilizer technology for young plantation of Sobina chinensis in Yunnan Degradation of mountain. [Method] Ring fertilizer was used in Huize County Yunnan Province 24 plots were fertilizing. [Result]Fertilization was negatively correlated with survival rate, Reducing from 1.7% to 17.6%; each fertilization treatments on the tree Height, DBH and Volume have a significant effect, in which the high NPK treatment at the tree Height, DBH and Volume growth are the largest, an increase of 29%, 31%, 192%; [Conclusion]Fertilization can increase the Sabina chinensis in varying degrees the growth, while derived N, P, K optimum fertilizer theoretically applied per 667m2 of pure N 21.22kg, P2Os 10.64 kg, K20 9.83kg.

关 键 词：滇中高原 圆柏 施肥 最佳施肥量 

分 类 号：S792.39[农业科学—林木遗传育种]