4.Journals Published in Sri Lanka
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Item Annual report for 1974(Coconut Research Institute:Lunuwila, 1975)Item Crop diversification and intercropping in tea lands(Tea Research Institute:Talawakelle, 2012) Ekanayake, P.B.; Jayasekara, A.P.D.A.Item Effects of some agronomic practices on dry matter partitioning of Boerhavia diffusa L.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2008) Arulmageswaran, S.; Pushpakumara, D.K.N.G.; Nissanka, S.P.Item A method for handling overdispersion in binary data:illustrated by analysis of survey data on pineapple wilt disease(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1996) Samitha, S.; Thattil, R.O.Item Effects of irrigation at different growth stages on yield components and yield of Soybean (Glycine max(L.) Merr.) grown in the low country dry zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1996) Shunmugathasan, K.N.; De Costa, W.A.J.M.; Joseph, K.D.S.MItem Use of covariates in improving precision of field experiments in rubber(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1996) Wijesuriya, B.W.; Thattil, R.O.Item Effects of plant density, nitrogen and gypsum on yield parameters of groundnut (Arachis hypogea L.) in regosols of Batticaloa district(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1995) Sivanesarajah, K.; Sangakkara, U.R.; Sandanam, S.Item Interplanting of rubber with tea:a technology appropriate for rubber small holdings(Rubber Research Institute. Agalawatta, 1998) Yogarathnam, N.; Iqbal, S.M.M.Item Role of Gliricidia sepium on physical improvement of gravelly soil(Coconut Research Institute. Lunuwila, 1996) Vidana Arachchi, L.P.; Liyanage, M. De S.The Andigama soil series, which is widespread in coconut lands, is known to have poor physical characters restricting palm growth and yield in the intermediate zone of Sri Lanka. This study was carried out to investigate the possibility of improving degraded soil conditions of Andigama series by intercropping with Gliricidia sepium under coconut. Gliricida sepium was established in a 45 year old coconut plantation in double rows of 2m x 1m and arranged in a Randomized Block design with four replicates. The effect on soil physical characters such as texture, bulk density, aeration capacity, moisture retention and root distribution pattern of Gliricidia sepium were studied. Results revealed that clay faction cemented with gravel significantly increased (P0.05)bulk density (1.62 +-0.07). it acts as a physical barrier and reduced readily available water fraction in B horizon. the available water fraction in A, AB and B horizons decreased by 66