Culm removal effect on culm yield and biomass productivity of laak (Bambusa sp. 2) in flatland and hillyland sites in Pandapan, Tagum, Davao del Norte [Philippines]
1999
Manipula, B.M. | Gianan, N.S. | Virtucio, F.D. (Department of Environment and Natural Resources, Lanang, Davao City (Philippines). Ecosystems Research and Development Service)
Results of the study revealed that removing all 3-year old culms including defective culms (T1) and removing all 3-year old and 1/2 of 2-year-old culms per clump with an average of 12.10 and 10.34 culms respectively, are not significantly different from each other in the flatland site. In the hillyland site, removing all 3-year-old culms including the defective culms (T1), removing all 3-year-old culms and 1/2 of 2-year-old culms including the defective culms (T2) and removing all 3-year-old and 2-year-old culms including defective culms (T3) produced the most number of culm per clump with an average of 4.69, 4.22 and 4.21 culms, respectively, which are not significantly different from each other. Litter production in flatland site was recorded at 598.47 gm/sq m trap and 333.28 gm/sq m trap in hillyland. Flatland site had higher aboveground biomass and had faster decomposition rates of leaf litterfall compared to hillyland site
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