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Abstract
The objectives of this study was to evaluate the effects of earthworm introduction and leaf litter on the soil fertility and plant growth on the coal-mined soil growth media. This factorial experiment used completely randomized design. The first factor was the type of growth media, consisting of four levels, namely 1) topsoil, 2) coal-mined soil, 3) coal- mined soil + leaf litter of Euphatorium odoratum, and 4) coal-mined soil, + Euphatorium litter + earthworms, Pontoscolex corethrurus. The second factor was plants species, consisting of two levels, namely 1) Sesbania grandiflora and 2) Leucaena leucochepala Lam De Wit. Results showed that addition of leaf litter, or addition of leaf litter plus earthworms significantly increased soil fertility and plant growth. Sesbania gradiflora significantly grew faster thanLeucanea leucocephala.
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References
Bussler, B.H., W.R.. Byrnes, P.E. Pope, and W.R. Chaney, 1984. Properties of minesoil reclaimed for forest land use. Soil Science American Journal 48:178-184.
Curry, J.P and D.C.F. Cotton. 1983. Earthworm and Land Reclamation. Pages 215-228. In J.E. Satchell (ed.), 1983. Earthworm ecology, from Darwin to vermiculture. Chapman and Hall, London.
Edwards, C.A. and J.R. Lofty. 1977. Biology of earthworms. Chapman and Hall, London.
Groenewold, G.H. 1979. Hydrologic and
hydrogeochemical characteristics of selected strip mine in North Dakota. Pages 769-774 In Wali, M.K. (ed.), 1979. Ecology and coal
resources development. Pergamon Press, New York.
Munawar, A. 1997. Reklamasi lahan bekas
tambang batubara di Bengkulu dengan revegetasi dan pengaruhnya terhadap kesuburan tanah. Laporan Penelitian. Fakultas Pertanian, Universitas Bengkulu, Bengkulu
Vimmertedt, J.P. and J.H.Finney. 1973. Impacts of earthworms on litter burial and nutrient distribution in Ohio stripmine spoil banks. Soil Science Society of American Proceeding 37:388-391.
Widyanto, E.B. 2000. Perakitan teknologi produksi tanaman yang adaptif terhadap tegakan chromolena odorata dan ramah lingkungan. Laporan Penelitian Hibah Bersaing VI/III. DIKTI.
Wiryono, 1991. Effects of surface soil materials and earthworm introduction on the biomass of herbaceous vegetation in calcareous mined lands. Masters Thesis. The Ohio State University, Columbus, Ohio.
Wiryono, J.P. Vimmerstedt, and D.A. Kost. 1994. Earthworm introduction on calcareous minesoils. Page 351 In USDI. International Land Reclamation and Mine Drainage Conference and Third International Conference on the Abatement of Acidic Drainage. Vol 3. Reclamation and Revege- tation. Pittsburgh, Pennsylvania.
Wiryono dan Darmi, 2003. Preferensi jenis seresah dan kecepatan dekomposisi seresah oleh cacing tanah Pontoscolex corethrurus. J.Penelitian UNIB. 9(3): 138-141.