4.Journals Published in Sri Lanka
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Item Potential of Eppawala rock phosphate as a phosphorus fertilizer for rice cultivation in acid sulphate soils in Matara district of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2018) Ratnayake, U.A.J.; Weerasinghe, K.D.N.; Vitharana, U.W.A.; Chandika, K.K.J.Item Efficiency of partially acidulated Eppawala phosphate rock as a phosphorus source for potato and vegetables(Soil Science Society of Sri Lanka:Colombo, 1998) Wijewardana, J.D.H.; Yapa, U.W.S.P.Item The use of Eppawela apatite for tea in Sri Lanka(Tea Research Institute. Thalawakele, 1981) Sivasubramaniam, S.; Wickremasinghe, K.N.; Ayadurai, S.Item Clonal differences in rock phosphate utilization by Hevea(Rubber Research Institute. Agalawatta, 1991) Dissanayake, D.M.A.P.; Dissanayake, T.; Gunasekera, R.; Jayasekera, S.Genotypic variability in utilization of rock phosphates including the local source Eppawale was evaluated using Hevea clones during the early immature phase. All the clones responded to P fertilization, and the responces were related to the source of fertilizers and other soil characteristics. Plants of clone RR1C 121 utilized Eppawala rock phosphate efficiently, both in Matale and Boralu soil. But, plants of clone RR1C 110 were able to use both rock phosphate sources only in Matale soils. However, responce to rock phosphate from plants of 100 was comparatively low in relation to P uptake and dry matter production. The necessity of testing these clones for the locally available phosphate source in the field scale is also discussed