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ranjith b mapa
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Rainfed farming in the dry zone of Sri Lanka
Ranjith B. Mapa · Dept. of Soil Science, Faculty of Agriculture, University of Peradeniya
70 sayfa · 1993
Dry farming / Congresses / Sustainable agriculture / Agriculture
Soils of the intermediate zone of Sri Lanka
Ranjith B. Mapa, A. R. Dassanayake, H. B. Nayakekorale · Soil Science Society of Sri Lanka
243 sayfa · 2005
Kategori yok
Soils of dry zone of Sri Lanka
Ranjith B. Mapa, S. Somasiri, A. R. Dassanayake · Soil Science Society of Sri Lanka
322 sayfa · 2010
Kategori yok