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Browsing by Author Kumaragamage, D.

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Showing results 1 to 18 of 18
PreviewIssue DateTitleAuthor(s)
PGIATAR-8-78.pdf.jpg1996Adsorption of paraquat in selected Sri Lankan soilsRatnayake, J.I.L.B.; Kumaragamage, D.
PGIATAR_27_1_59.pdf.jpg2015Beneficial management practices on growth and yield parameters of maize (zea mays) and soil fertility improvementChathurika, J.A.S.; Indraratne, S.P.; Dandeniya, W.S.; Kumaragamage, D.
PGIATAR-5-69.pdf.jpg1993A comparison of citric acid solubilities of commercially available Eppawala rock phosphate and selectively mined primary apatite crystals after mixing with peatRathnayake, M.P.K.; Kumaragamage, D.; Dahanayake, K.
PGIATAR-6-223.pdf.jpg1994Comparison of selectively mined apatite crystals and commercially available rock phosphate from Eppawala, as P fertilizers for flooded riceRatnayake, M.P.K.; Kumaragamage, D.; Dahanayake, K.
PGIATAR-10-61.pdf.jpg1998Effect of neem (Azadirachta indica A. Juss) materials on nitrification of applied urea in three selected soils of Sri LankaGnanaveirajah, N.; Kumaragamage, D.
PGIATAR-7-143.pdf.jpg1995Evaluation of phosphorus extraction methods for assessing phosphorus availability of some Sri Lankan soilsWithana, A.K.; Kumaragamage, D.
PGIATAR-19-229.pdf.jpg2007Evaluation of site -specific fertilizer recommendation for cauliflower (Brassica oleracea L.) in two locations in Sri LankaKirthisinghe, J.P.; Kumaragamage, D.; Sultanbava, F.
PGIATAR-10-89.pdf.jpg1998Fate of Diuron in selected Agricultural soilsRatnayake, J.I.L.B.; Kumaragamage, D.
PGIATAR-19-210.pdf.jpg2007Formulation and testing of site specific fertilizer recommendation for bitter gourd (Momordica charantia L.)Amarasekara, M.G.T.S.; Indraratne, S.P.; Kumaragamage, D.; Sultanbava, F.
PGIATAR-3-135.pdf.jpg1991An investigation on phosphate adsorption in six Sri Lankan soils in relation to their chemical and mineralogical propertiesJayawickrama, S.P.; Thenabadu, M.W.; Kumaragamage, D.
PGIATAR-16-172.pdf.jpg2004Nitrate leaching as a function of fertilization and irrigation practices in sandy regosolsBawatharani, T.; Mowjood, M.I.M.; Dayawansa, N.D.K.; Kumaragamage, D.
PGIATAR-11-29.pdf.jpg1999Nitrogen leaching losses and plant response to nitrogen fertilizers as influenced by application of neem (Azadirachta indica A. juss) materialsGnanavelrajah, N.; Kumaragamage, D.
PGIATAR-14-233.pdf.jpg2002Potential risk of groundwater contamination with herbicides inthe wet zone of Sri LankaAdikaram, A.M.T.N.K.; Kumaragamage, D.
PGIATAR-5-60.pdf.jpg1993Retention of phosphorus by some surface soils of Sri LankaWithana, A.K.; Kumaragamage, D.
PGIATAR-18-48.pdf.jpg2006A site specific fertilizer recommendation for rice grown in imperfectly drained reddish brown earth soils in low country dry zone of Sri LankaBandara, W.M.J.; Kumaragamage, D.; Wickramasinghe, D.B.; Weerawarna, S.B.A.
PGIATAR-20-89.pdf.jpg2008Site specific nutrient application on yield , quality and post harvest life of Cauliflower (Brassica oleracea L.)Kirthisinghe, J.P.; Sarananda, K.H.; Kumaragamage, D.
390225-AB.pdf.jpg1986Studies on the availability of phosphorus in four soils of Sri LankaKumaragamage, D.
PGIATAR-7-152.pdf.jpg1995Use of multi-ionic extractant to determine available P,K,Na,Ca and Mg in acid soils of Sri LankaMadurapperuma, W.S.; Kumaragamage, D.
Showing results 1 to 18 of 18