HOME JOURNALS CONTACT

Research Journal of Forestry

Year: 2012 | Volume: 6 | Issue: 1 | Page No.: 16-23
DOI: 10.17311/rjf.2012.16.23
Influence of Nitrogen on Growth of Azadirachta excelsa
K.H. Ong, P.J.H. King, M.T. Lim and K. Awang

Abstract: A fertilizer trial with three rates of N was conducted in a 2-year-old Azadirachta excelsa stand. Mean increments of tree volumes over two years ranged from 25.95 to 54.67 m3 ha-1. Growth of A. excelsa increased significantly with the addition of N. Foliar P concentration at 39 months was significantly higher with additions of N. The best growth was associated with foliar concentrations of 2.57% N. The rather substantial decrease in growth in the second half of the study period indicates the need to continually repeat fertilizer application to sustain the earlier achieved growth rate. General fertilizer prescriptions for A. excelsa plantations are presented.

Fulltext PDF Fulltext HTML

How to cite this article
K.H. Ong, P.J.H. King, M.T. Lim and K. Awang, 2012. Influence of Nitrogen on Growth of Azadirachta excelsa. Research Journal of Forestry, 6: 16-23.

© Science Alert. All Rights Reserved