| VOLUME 16. | |
| Rice Straw Silica – Solubility Characteristics and use
as a Silicon Source in Paddy Cultivation W. M. A. D. B. Wickramasinghe |
1 |
| Exploring Tank – Village Farming System in the Dry Zone P. B. Dharmasena |
17 |
| Spatio – temporal Variability of Potential Evapotranspiration in
Sri Lanka and its application in Agricultural Planning M. A. K. Munasinghe and R. D. Chithranayana |
29 |
| Identification and Mapping of Spatio – temporal Variability of Growing
Season Characteristics in the Wet Zone of Sri Lanka R. D. Chithranayana, M. A. K. Munasinghe and B. V. R. Punyawardena |
43 |
| Effect of Continuous Application of Organic Manure on Sweet Potato Yield
and Nutrient Build up of an Alluvial Soil S. D. R. Wanniarachchi and H. D. Jayawickrama |
55 |
| Impact of Long – term Rice Cultivation on Potassium Availability
in Alfisols K. M. A. Kendaragama, K. M. Seneviratne Banda and P. T. Bandara 63 |
63 |
| Calcium, Magnesium and Micronutrient Status of Citrus Growing Soils of
Lower Uva Region of Sri Lanka J. D. H. Wijewardena |
73 |
| Heavy Metal Retention by Eppawela Rock Phosphate and Sri Lankan Dolomitic
Limestone S. P. Indraratne, A. G. A. Gayani and M. A. T. D. Marasingha |
81 |