JOURNAL OF THE SOIL SCIENCE SOCIETY OF SRI LANKA

VOLUME 9  
Organic Farming – Is it Sustainable in Sri Lanka ?
Shifaya Maraikar
1
Physical and Chemical Characteristics of Some Eroded Soils in the
Mid-country of Sri Lanka
H. B. Nayakakorala and B. D. R. Prasantha
17
Relationship Between Clay Activity and Specific Surface with Clay Mineralogy for
Some Major Soils of Sri Lanka
R. B. Mapa
32
A Study on the Application of Urea and Sulphate of Ammonia Based Fertilizers at
Different Proportions on Sulphur Nutrition and Yield of Tea (Camellia sinensis)
E. A. P. N. Edirisingha, G. Wadasinghe, P. V. de Alwis and G. D. Wimaladasa
44
Efficiency of Peat-mixed Rock Phosphates on Some Alfisols and Ultisols of Sri Lanka
M. P. K. Ratnayake, D. Kumaragamage and K. Dahanayake
56
An Anion Exchange Resin Method for Soil Phosphorus Estimation
D. M. D. I. Wijebandara and L. L. W. Somasiri
70

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