青海云杉祁连圆柏幼树施肥试验研究  

A Study on the Experiment of Applying Fertilizer for the Young Trees of Picea Crassifolia and Sabina Pzewalskii

作　　者：孔东升[1] 邓延安[1] 马力[1] 

机构地区：[1]甘肃省张掖祁连山水源林研究所

出　　处：《甘肃林业科技》1995年第4期13-16,共4页Journal of Gansu Forestry Science and Technology

摘　　要：本文在化验土壤的基础上，进行了青海云杉、祁连圆柏不同化肥种类和施肥量的试验。结果表明：施肥可使１１年生的云杉高生长增加４４．６～１０６．４％，８年生的圆柏高生长增加１８．２～６３．３％；各种化肥中，云杉以Ｎ、Ｐ、Ｋ复合肥效果最好，圆柏以Ｎ、Ｐ肥效果最好；施肥量云杉以每株施２００ｇ为宜，圆柏每株施５０ｇ为宜。On the basis of analytical results soil,authors make the experi-ments on different binds of fertilizers and the amount of fertilizing for Pi-cea crassifolia and Sabina przewalkli.The results show that,applying fer-tilizer makes the height of 11-year-old Picea crassifolia increase by 44.6to 106.4 per cent,8-year-old Sabina przcwalskii increase by 18.2 to 63.3per cent,Among the fertilizers applied,compound fertizer of N、P、K isbest to Picea crassifolia while that of N、P is best to Sabina Drzewalskii.With regard to the fertilizing amount,200 gram is suitable for each Plceacrassifolia and 50 gram is suitable for each Sabina przewalskii.

关 键 词：青海云杉 祁连圆柏 幼树 施肥 

分 类 号：S723.7[农业科学—林木遗传育种]