Decomposition of Entandrophragma Cylindricum Tree Prunings in Agroforestry System in Onne, Rivers State
1 Forestry Research Institute of Nigeria, Humid Research Station, Umuahia.
2 Forestry Research Institute of Nigeria, Ibadan
3 Forestry Research Institute of Nigeria, Rainforest Research Station, Ore.
* Corresponding author: afoblackk@yahoo.com
2 Forestry Research Institute of Nigeria, Ibadan
3 Forestry Research Institute of Nigeria, Rainforest Research Station, Ore.
* Corresponding author: afoblackk@yahoo.com
Abstract
A study was conducted at Swamp Forest Research Station, Onne, Forestry Research Institute of Nigeria, to evaluate the rate of decomposition of E. cylindricum tree prunings. The experiment was a 2x8 factorial in a randomized complete block design with three replications. The first factor comprises two placement methods (surface-placed and soil-incorporated) and the second factor comprises eight biweekly sampling intervals (2 – 16 weeks). The litterbag technique was employed. Results indicated that the Total leaf decomposition (100.0%) of soil incorporated leaf litter was obtained at the 16th week after litter placement (WALP). Soil-surface placed had 98.00% at 16th WALP. Leaf half-lives of the soil-surface placed and soil incorporated were 5.08 and 2.10 WALP respectively. The turnover coefficients (k1) of the soil surface-placed and soil -incorporated leaf litter of E. cylindricum were 6.93yr-1 and 17.33 yr-1 respectively. The high rate of fresh leaf decomposition and subsequent release of nutrients make E. cylindricum leaf pruning a good source of organic manure for soil fertility restoration
Keywords
Decomposition Etandrophragma cylindricum Placement methods Turnover coefficients
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How to Cite
A.O, K., O.A, K., O.R, O., & A.S., A. (2021). Decomposition of Entandrophragma Cylindricum Tree Prunings in Agroforestry System in Onne, Rivers State. Nigerian Journal of Soil Science, 31(2), 87-93. https://doi.org/10.67042/njss.2021.cw8i1irl
K. A.O, K. O.A, O. O.R, and A. A.S., "Decomposition of Entandrophragma Cylindricum Tree Prunings in Agroforestry System in Onne, Rivers State," Nigerian Journal of Soil Science, vol. 31, no. 2, pp. 87-93, August 2021. doi: 10.67042/njss.2021.cw8i1irl