Mapa, R.B. Dassanayake, A.R. Nayakekorale, H.B.

Soil of the intermediate zone of Sri Lanka morphology,characterization and classification - Soil Science Society of Sri Lanka 2005 - xx,243 - Soil science Intermediate zone soil Sri Lanka Low country intermediate zone Soil management Rice Tea Rubber Coconut Forestry Spicy crops Horticultural crops Vegetable crops Soil analysis methods Soil classfication - Special Publication No.4 .

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Agriculture

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