不同施肥处理对巨桉3T-无性系幼林生长的影响  

Effects of Two Ways of Fertilization on the Growth of 3T-Cloned Seedlings of Eucalyptus grandis

作　　者：陈桂芳 李在军 娄利华 蔡孔瑜 

机构地区：[1]重庆市林业科学院,重庆400036

出　　处：《西部林业科学》2010年第4期79-81,共3页Journal of West China Forestry Science

基　　金："重庆市科技攻关项目(CSTC;2008AC1023)";"三峡库区森林生态保护与恢复重庆市市级重点实验室"资助

摘　　要：采用不同用量的复合肥和磷肥作基肥,通过对巨桉3T-无性系幼林生长的影响试验。结果表明:各施肥处理与对照间株高、地径差异显著;复合肥用量500 g时,6个月后巨桉3T-无性系苗木株高为2.04 m,地径为2.53 cm,而磷肥用量为500 g时,株高为1.68 m,地径为1.77 cm;用复合肥200 g和磷肥300 g混合作基肥效果最好,株高为2.12 m,地径为2.46 cm。当复合肥和磷肥用量相同时,复合肥施用效果好于磷肥,两种肥混施能较好地促进桉树生长。Using different ratio of compound and phosphate fertilizer as base fertilizers,we studied their effects on the growth of sapling of Eucalyptus grandis.It showed that different ways of fertilization were significant at 5 % level to their control on sapling height and DAB（diameter at base）;when the usage was 500 g for compound fertilizer,the 3T-Clone Seedlings of Eucalyptus grandis reached 2.04 m in height and 2.53 cm in DAB,while that of it with same amount for phosphate fertilizer reached 1.68 m and 1.77 cm respectively in 6 months.And,with the treatment of mixed base fertilizer of 200 g compound and 300 g phosphate,the height was 2.12 m and DAB 2.46 cm in 6 months.The compound fertilizer had better accelerating effect than that of phosphate with the same amount in the treatments.The mixed base fertilizer with both was able to better accelerate growth of the tree.

关 键 词：巨桉 施肥 幼林生长 

分 类 号：S792.39[农业科学—林木遗传育种]