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Filters: Keyword is soil fertility and Author is Rohana Ulluwishewa [Clear All Filters]
1991
“Soil Fertility Management Of Paddy Fields By Traditional Farmers In The Dry Zone Of Sri Lanka”. Journal Of Sustainable Agriculture 1 (3): 95-106. doi:10.1300/J064v01n03_08. http://www.tandfonline.com/doi/abs/10.1300/J064v01n03_08.
. 1991.