STUDY ON EFFECT OF SILVICULTURE TECHNIQUES ON GROWING OF ACACIA HYBRID PLANTATION FOR SAW LOG IN SOUTHEAST REGION
Keywords:
Acacia hybrid, Sawlog,, Fertilize, Pruning, ThinningAbstract
One of project’s objectives which was titled “Optimising silvicultural management and productivity of
high-quality acacia plantations, especially for sawlogs” (FST 2006/087) supported by ACIAR for Forest
Science Institute of Vietnam is: i) quantify the role of fertilizer, pruning and thinning to optimize tree
size, log distribution and economic returns from plantations managed for sawn timber. This paper will
introduce some of research results for above objective which was implemented in Binh Long dist., Binh
Phuoc province.
Results pointed that after 4 years planting: i) effective of fertilizer (50 kg P/ha) using on trees growing in
diameter & high is bester than the applied fertilizer (18kg P/ha), ii) The additional fertilizer apply is not
effective so far and it is necessary to continue the monitoring; iii) The deference of thinning regime of
plantation at 2 & 3 years old given the growing deference in diameter and height of trees; iv) Thinning
time in plantation 2 years old is better than in 3 year old plantation
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