Prof. B.C. Walpola
+94 71 251 6239

Prof. B.C. Walpola

Professor
Department of Soil Science,
Faculty of Agriculture, University of Ruhuna,
Mapalana, Kamburupitiya,
Sri Lanka 81100
Profile QR Code
Research Interests
Soil Microbiology Phosphate Solubilizing Microorganisms Carbon and Nitrogen Mineralization Biofertilizers Soil Amendments
Qualifications

Biography

Prof. B.C. Walpola completed B.Sc. Agriculture degree with Second Class Upper Division Honours, from Faculty of Agriculture, University of Ruhuna, Sri Lanka, in 2000. Then Prof. B.C. Walpola joined the Department of Soil Science, University of Ruhuna first as Temporary Research Assistant in 2001 and then as a Probationary Lecturer in 2002. Prof. B.C. Walpola completed M.Sc. degree in Industrial and Environmental Chemistry at University of Kelaniya, Sri Lanka, in 2004 and Ph.D. degree in Soil Microbiology at Chungnam National University, South Korea in 2013. Prof. B.C. Walpola was promoted to the Grade of Senior Lecturer (Grade 11) in 2007, Senior Lecturer (Grade 1) in 2013 and Professor in Soil Science in 2016. One of Prof. B.C. Walpola's research interests is in the area of soil microbiology with particular emphasis on phosphate solubilizing soil microorganisms. Prof. B.C. Walpola is also interested in carbon and nitrogen mineralization pattern in soil amended with different organic amendments. Prof. B.C. Walpola has published more than 60 research publications which include books, journal articles and conference/symposium papers in the field of Agriculture and allied sciences.

Journal Publications

Total: 112
01
Walpola, B. C., Arunakumara, K. K. I. U., & Yoon, M. H. (2022). Phospate solubilization by phosphate solubilizing microorganisms: Insight into the mechanisms. Korean Journal of Agricultural Science, 49, 1-19.
02
Mendis, A. P. I., Walpola, B. C., & Kumarasinghe, H. K. M. S. (2022). Natural rubber tire waste charcoal (NRTWC) on organic carbon mineralization in tea growing soils. ATRS Journal, 2(1), 23.
03
Kalpani, K. L. M., Arunakumara, K. K. I. U., Fernando, K. M. C., & Walpola, B. C. (2022). Prospects of Cannabis and its Cultivation in Sri Lanka. Sri Lankan Journal of Agriculture and Ecosystems, 4(1).
04
Arunakumara, K. K. I. U., Walpola, B. C., & Karunatunga, C. (2022). Assessment of the early growth of agarwood (Aquilaria crassna) seedlings under different sources of nutrients. Journal of Forest Science, 68(1), 1-7.
05
Arunakumara, K. K. I. U., Walpola, B. C., & Karunatunga, C. (2021). Effect of phosphate solubilizing bacteria (PSB) on growth and P uptake of Wallapatta (Gyrinops walla Gaertn.) seedlings. Rajarata University Journal, 6(2), 1-7.
06
Mendis, A. P. I., Walpola, B. C., & Kumarasinghe, H. K. M. S. (2021). Impact of Natural Rubber Tire Waste Charcoal on Selected Soil Physical Characteristics of Tea Growing Soils. Sri Lankan Journal of Agriculture and Ecosystems, 3(2), 53-69.
07
Walpola, B. C., & Hettiarachchi, R. H. A. N. (2020). Comparison of qualitative and quantitative methods for isolation of phosphate solubilizing microorganisms. Vidyodaya Journal of Science, 23(02), 14-22.
08
Walpola, B. C., & Hettiarachchi, R. H. A. N. (2020). Plant growth promoting traits of phosphate solubilizing bacteria isolated from agricultural lands in Sothern Sri Lanka. Journal of Food and Agriculture, 13, 2-18.
09
Walpola, B. C., & Mendis, A. P. I. (2020). Impacts of land use changes on selected soil physical and chemical characteristics under pineapple cropping systems in Matara district, the Low Country Wet Zone of Sri Lanka. Sri Lankan Journal of Agriculture and Ecosystems, 2(2), 103-121.
10
Walpola, B. C., & Hettiarachchi, R. H. A. (2020). Organic manure amended with phosphate solubilizing bacteria on soil phosphorous availability. J ournal of Agricultural Sciences, 15(2), 142-153.
11
Walpola, B. C., & Hettiarachchi, R. H. A. N. (2018). Isolation and characterization of phosphate-solubilizing and heavy-metal tolerant bacteria from agricultural fields in Matara District, Sri Lanka. Tropical Agricultural Research and Extension, 21(3/4), 51-58.
12
Walpola, B. C., & Shamudika, H. U. (2017). Phosphorus availability in low phosphorous acidic soils as affected by liming and phosphorous addition. J ournal of Tropical Agricultural Research and Extension, 20(3 & 4), 90-98.
13
C, W. B., & U, A. K. K. I. (2016). Assessment of phosphate solubilization and indole acetic acid production in plant growth promoting bacteria isolated from green house soils of Gonju-gun, South Korea. Journal of Tropical Agricultural Research and Extension, 18(1), 31-39.
14
B.C, W., & U, A. K. K. I. (2016). Effects of inorganic phosphate on phosphate solubilization and acid phosphatase activity of the bacterial strain Pantoa agglomerans isolated form soil. Proceedings of the International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna. 144-146.
15
U, S. H., & C, W. B. (2016). Isolation of efficient halo-tolerant phosphate solubilizing microorganisms from saline soils. Proceedings of the International Research Symposium, Uva Wellassa University, 308.
16
U, S. H., & C, W. B. (2016). Effects of liming on nitrogen mineralization in an acidic soil. Proceedings of the Wayamba University International conference, Wayamba University of Sri Lanka, 306.
17
N, H. R. H. A., & C, W. B. (2016). Aluminium phosphate solubilization by phosphate solubilizing microorganisms. Proceedings of the Wayamba University International conference, Wayamba University of Sri Lanka, 293.
18
U, S. H., & C, W. B. (2016). Phosphorous availability in low phosphorous and acidic soils as affected by liming and phosphorous addition. Proceedings of the International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, 16.
19
C, W. B., & U, A. K. K. I. (2016). Solubilization of aluminium and iron phosphates by phosphate solubilizing microorganisms. Proceeding of the 13 th Academic Session, University of Ruhuna, 121.
20
N, H. R. H. A., & C, W. B. (2016). An efficient microbiological growth media for screening phosphate solubilizing microorganisms. Proceeding of the 13 th Academic Session, University of Ruhuna, 121.
21
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2015). Bioaugmentation-assisted phytoextraction of Co, Pb and Zn: an assessment with a phosphate-solubilizing bacterium isolated from metal-contaminated mines of Boryeong Area in South Korea. Biotechnology, Agronomy, Society and Environment (BASE) ., 19(2), 143-152.
22
C, W. B., & U, A. K. K. I. (2015). Isolation and evaluation of extracellular protease producing bacteria. Proceeding of the 12 th Academic Session, University of Ruhuna, 121.
23
S, N. H. K., D, K. R., & C, W. B. (2015). Effect of Trichoderma species on nutrient absorption and growth rate of black pepper ( Piper nigrum L.). Proceedings of the International Symposium on Agriculture and Environment (Student Session-2014), Faculty of Agriculture, University of Ruhuna, 13.
24
B.C, W., & L.V, R. (2015). Antibiotic resistance phosphate solubilizing bacteria. Proceedings of the International Symposium-Environment Management and Planning, Central Environmental Authority, Sri Lanka, 54.
25
C, W. B., & U, A. K. K. I. (2015). Organic acid production and phosphate solubilization by phosphate solubilizing bacteria isolated from green house soils in South korea. Proceedings of 2 nd Ruhuna International Science and Technology Conference, 80.
26
C, W. B., & U, A. K. K. I. (2015). Isolation and characterization of phosphate solubilizing bacteria from the rhizosphere of tomato plants. Proceedings of the International conference on postcolonial societies in transition. Faculty of Humanities and Social Sciences, University of Ruhuna . 83.
27
Walpola, B. C., Kim, A. Y., Jeon, J. H., & Yoon, M. H. (2014). Application of immobilization technology in solubilization of rock phosphate. Korean Journal of Soil Science and Fertilizer, 47(4), 249-253.
28
Walpola, B. C., Arunakumara, K. K. I. U., & Yoon, M. H. (2014). Isolation and characterization of phosphate solubilizing bacteria (Klebsiella oxytoca) with enhanced tolerant to environmental stress. African Journal of Microbiology research, 8, 2970-2978.
29
Walpola B.C, & Yoon, M. (2014). Siderophore production by phosphate solubilizing bacteria isolated from heavy metal contaminated soils. Proceedings of the International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, 193-195.
30
C, W. B., & V, R. L. (2014). Phosphate solubilization by Klebsiella oxytoca under heavy metal stress. Proceedings of the nineteenth International Forestry and Environment Symposium, Sri Jayawardenepura University, 136.
31
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Mass multiplication of an important medicinal plant Gymnema sylvestre R. Br.: A review. International Journal of Medicinal Plants, 105, 250-259.
32
Walpola, B. C., Kong, W. S., & Yoon, M. H. (2013). Solubilization of inorganic phosphates and plant growth promotion by Pantoea strains. Korean Journal of Soil Science and Fertilizer, 46(6), 494-501.
33
Walpola, B. C., & Yoon, M. H. (2013). Phosphate solubilizing bacteria: Assessment of their effect on growth promotion and phosphorous uptake of mung bean (Vigna radiata [L.] R. Wilczek). Chilean Journal of agricultural research, 73(3), 275 -281.
34
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Current status of heavy metal contamination in Asia’s rice lands. Reviews in environmental science and bio/technology, 12(4), 355-377.
35
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Alleviation of phyto-toxicity of copper on agricultural plants. Journal of the Korean Society for Applied Biological Chemistry, 56(5), 505-517.
36
Arunakumara K. K. I. U, Walpola B.C, & Min-Ho, Y. (2013). Metabolism and degradation of glyphosate in aquatic cyanobacteria: A review. African Journal of Microbiology Research, 7(32), 4084-4090.
37
Walpola, B. C., & Min-Ho, Y. (2013). In vitro solubilization of inorganic phosphates by phosphate solubilizing microorganisms. African Journal of Microbiology Research, 7(27), 3534-3541.
38
Walpola, B. C., Noh, J. G., Kim, C. K., Kyung, K. C., Kong, W. S., & Yoon, M. H. (2013). Optimization of indole-3-acetic production by phosphate solubilization bacteria isolated from waste mushroom bed of Agaricus bisporus. Journal of Mushroom Science and Production, 11(2), 53-62.
39
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Banana peel: A green solution for metal removal from contaminated waters. Korean Journal of Environmental Agriculture, 32(2), 108-116.
40
Walpola, B. C., Keum, M. J., & Yoon, M. H. (2013). Effect of fungicides on phosphate solubilization by Klebsiella oxytoca and Enterobacter ludwigii. Korean Journal of Soil Science and Fertilizer, 46(2), 112-116.
41
Walpola, B. C., Jang, H. J., & Yoon, M. H. (2013). Synergistic phosphate solubilization by Burkholderia anthina and Aspergillus awamori. Korean Journal of Soil Science and Fertilizer, 46(2), 117-121.
42
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Agricultural methods for toxicity alleviation in metal contaminated soils: A review. Korean Journal of Soil Science and Fertilizer, 46(2), 73-80.
43
Park, M. H., Walpola, B. C., & Yoon, M. H. (2013). Purification and characterization of protease enzyme from Burkholderia stabilis. African Journal of Biotechnology, 12(12), 1408-1418.
44
Walpola, B. C., & Yoon, M. H. (2013). Isolation and characterization of phosphate solubilizing bacteria and their co-inoculation efficiency on tomato plant growth and phosphorous uptake. African Journal of Microbiology Research, 7(3), 266-275.
45
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2013). Aluminum toxicity and tolerance mechanism in cereals and legumes—A review. Journal of the Korean Society for Applied Biological Chemistry, 56(1), 1-9.
46
M.A.S.D, D. S., G.P, G., & B.C, W. (2013). Effect of foliar application of amino acid formulations on crop productivity of tea. Proceedings of the International Symposium on Agriculture and Environment (Student Session), Faculty of Agriculture, University of Ruhuna, 29.
47
M. A. S. D. De Silva, G. P. Gunaratne, & B. C. Walpola (2013). Effect of foliar application of amino acid formulations on crop productivity of Tea. Proceedings of the International Symposium on Agriculture and Environment (Student Session-2013), Faculty of Agriculture, University of Ruhuna, 29.
48
B.C, W., & Yoon, M. (2013). Optimization of indole-3-acetic acid production by phosphate solubilizing bacteria aimed at improving plant growth. Proceedings of the 4 th joint symposium between Chungnam National University and Shenyang Agricultural University. May 20-23. Daejeon, South Korea, 20.
49
Arunakumara, K. K. I. U., Walpola, B. C., & Yoon, M. H. (2012). How do citrus crops cope with aluminum toxicity?. Korean Journal of Soil Science and Fertilizer, 45(6), 928-935.
50
Walpola, B. C., Keum, M. J., & Yoon, M. H. (2012). Influence of different pH conditions and phosphate sources on phosphate solubilization by Pantoea agglomerans DSM3493. Korean Journal of Soil Science and Fertilizer, 45(6), 998-1003.
51
Song, J. S., Walpola, B. C., Chung, D. Y., & Yoon, M. H. (2012). Heavy metal resistant phosphate solubilizing bacteria. Korean Journal of Soil Science and Fertilizer, 45(5), 809-813.
52
Walpola B.C, & Min-Ho, Y. (2012). Prospectus of phosphate solubilizing microorganisms and phosphorus availability in agricultural soils: A review. African Journal of Microbiology Research, 6(37), 6600-6605.
53
Walpola, B. C., Song, J. S., Keum, M. J., & Yoon, M. H. (2012). Evaluation of phosphate solubilizing potential of three Burkholderia species isolated from green house soils. Korean Journal of Soil Science and Fertilizer, 45(4), 602-609.
54
Walpola, B. C., & Yoon, M. H. (2012). Concentration dependent effect of heavy metals on soil carbon mineralization. Korean Journal of Soil Science and Fertilizer, 45(4), 551-554.
55
Walpola, B. C., Song, J. S., Jang, K. Y., & Yoon, M. H. (2012). Stress induced phosphate solubilization by Aspergillus awamori bxq33110 isolated from waste mushroom bed of Agaricus bisporus. Korean Journal of Soil Science and Fertilizer, 45(3), 428-434.
56
Park, M. H., Walpola, B. C., Kim, S. J., & Yoon, M. H. (2012). Control effect of root-knot nematode (Meloidogyne incognita) by biological nematicide. Korean Journal of Soil Science and Fertilizer, 45(2), 162-168.
57
Walpola, B. C., Song, J. S., & Yoon, M. H. (2012). Assessment of Plant Growth Promoting Activities of Phosphorus Solubilizing Bacteria. Korean Journal of Soil Science and Fertilizer, 45(1), 66-73.
58
B.C, W., & Yoon, M. (2012). Co-inoculation of phosphate solubilizing bacteria and their effect on growth of tomato plants. Proceedings of the International symposium on Agriculture, Food and Environment and Life Science in Asia (2012). November 7-8. Daejeon, South Korea, 53.
59
B.C, W., & Yoon, M. (2012). Stress induced phosphate solubilization by fungi Aspergillus awamori bxq33110 isolated from green house soils in South Korea. Proceedings of the 3 rd joint symposium between Chungnam National University and Shenyang Agricultural University. May 22-25. Shenyang, China, 112.
60
B.C, W., & Yoon, M. (2012). An assessment on plant growth promoting activities of phosphorus solubilizing bacteria. Proceedings of the 3 rd joint symposium between Chungnam National University and Shenyang Agricultural University. May 22-25. Shenyang, China, 104.
61
B.C, W., Song, J., Keum, M., & Yoon, M. (2012). An assessment on phosphate solubilization by Burkholderia anthina R-4183 under different pH regimes. Proceedings of the International symposium and annual meeting of the Korean Society of Applied Biological Chemistry (KSABC). November 8-10, 2012. Gwangju, South Korea, 190.
62
Walpola, B. C., & Arunakumara, K. K. I. U. (2011). Carbon and nitrogen mineralization of a plant residue amended soil: The effect of salinity stress. Bangladesh Journal of Scientific and Industrial Research, 46(4), 565-572.
63
Walpola, B. C., Arunakumara, K. K. I. U., & Yoon, M. H. (2011). Evaluation of nitrogen mineralization in soil polluted by zinc and cadmium. Korean Journal of Soil Science and Fertilizer, 44(4), 559-564.
64
Arunakumara K.K.I.U, Walpola, B. C., Subasinghe, S., & Yoon, M. H. (2011). Pterocarpus santalinus Linn. f.(Rath handun): A review of its botany, uses, phytochemistry and pharmacology. Journal of the Korean Society for Applied Biological Chemistry, 54(4), 495-500.
65
Walpola, B. C., & Arunakumara, K. K. I. U. (2011). Decomposition of Gliricidia leaves: the effect of particle size of leaves and soil texture on carbon mineralization. Tropical agricultural research and extension, 13(1), 19-23.
66
B.C, W., & Yoon, M. (2011). Concentration dependent effect of heavy metals on soil carbon mineralization. Proceedings of the International symposium and annual meeting of the Korean Society of Applied Biological Chemistry (KSABC). April 15. Seoul, South Korea, 103.
67
P.K.S.E, W., S.H.R, P., & B.C, W. (2011). Influence of heavy metals on nitrogen mineralization of agricultural soils. Proceeding of the Eight Academic Session, University of Ruhuna, 183.
68
Walpola, B. C., & Arunakumara, K. K. I. U. (2010). Effect of salt stress on decomposition of organic matter and nitrogen mineralization in animal manure amended soils. Journal of Agricultural Sciences–Sri Lanka, 5(1), 9-18.
69
P, S. T., C, M. S. A., R, P. S. H., & C, W. B. (2010). Effect of applied concentration of tea waste on soil carbon mineralization. Proceedings of the International Symposium, Faculty of Agriculture, University of Ruhuna, 18.
70
E, W. P. K. S., C, W. B., & R, P. S. H. (2010). Effect of heavy metals on soil microbial activity as measured by carbon mineralization. Proceedings of the International Symposium, Faculty of Agriculture, University of Ruhuna, 99.
71
K, R. P. C., P, G. G., & C, W. B. (2010). Characterization of bench-marked soil series in the tea growing areas of Sri Lanka, in relation to Potassium (K) dynamics. Proceedings of the International Symposium, Faculty of Agriculture, University of Ruhuna, 144.
72
Walpola, B. C., & Arunakumara, K. K. I. (2009). Effect of particle size of gliricidia leaves and soil texture on N mineralization. Journal of Agricultural Sciences, 4(3), 122-130.
73
Walpola, B. C., & Wanniarachchi, S. D. (2009). Microbial respiration and nitrogen mineralization in soil amended with different proportions of vermicompost and coir dust. Bangladesh Journal of Agricultural Research, 34(4), 537-543.
74
Walpola, B. C., Kumara, K. A., Senanayake, A. P., & Wanniarachchi, S. D. (2009). Gliricidia leaves decomposition: The effect of particle size on microbial respiration. Bangladesh Journal of Agricultural Research, 34(3), 343-350.
75
Walpola, B. C., Wanniarachchi S.D, & Liyanage J.A. (2009). Responses of the soil microbial biomass carbon to the herbicides propanil and glyphosate. Journal of Agricultural Sciences, 3(3), 122-130.
76
C, W. B., R, P. S. H., & U, A. K. K. I. (2009). Mineralization of inorganic nitrogen in saline soils enriched with plant residue. Proceedings of the 2 nd National Symposium, Faculty of Agriculture, University of Ruhuna, 21.
77
C, W. B., E, W. S., & N, J. (2009). Effects of nitrogen and phosphorous fertilizer on rice straw decomposition. Proceedings of the Fourteenth International Forestry and Environment Symposium, Sri Jayawardenepura University, 85-86.
78
B.C, W., U, P. P. K., & A, P. W. A. (2008). Effect of particle size and soil texture on soil carbon mineralization. Proceedings of the 64 th Annual Sessions of the Sri Lanka Association for the Advancement of Science, 52.
79
B.C, W., A, P. W. A., & U, P. P. K. (2008). Effect of particle size and soil texture on soil nitrogen mineralization. Proceedings of the 64 th Annual Sessions of the Sri Lanka Association for the Advancement of Science, 263.
80
C, W. B., A, P. W. A., U, P. P. K., R, P. S. H., & D, W. S. (2008). Nitrogen mineralization under saline conditions. Proceedings of the 1 st National Symposium, Faculty of Agriculture, University of Ruhuna, 98.
81
R, P. S. H., C, W. B., & D, W. S. (2008). Soil quality parameters of tsunami affected soils in Madiha area, Matara District, Southern Sri Lanka. Proceedings of the 1 st National Symposium, Faculty of Agriculture, University of Ruhuna, 99.
82
C, W. B., U, P. P. K., A, P. W. A., & D, W. S. (2008). Carbon mineralization under saline conditions. Proceedings of the 1 st National Symposium, Faculty of Agriculture, University of Ruhuna, 104.
83
U, A. K. K. I., N, P. N. D., C, W. B., & S, S. (2008). Present status of tsunami affected home gardens: A case study at Madiha in Matara District, Southern Sri Lanka. Proceedings of the Thirteenth International Forestry and Environment Symposium, Sri Jayawardenepura University, 02.
84
C, W. B., R, P. S. H., & U, A. K. K. I. (2008). Influence of soil salinity on carbon mineralization in a plant residue-amended soil. Proceedings of the Thirteenth International Forestry and Environment Symposium, Sri Jayawardenepura University, 07.
85
Dissanayake, T. R., Arunakumara K.K.I.U, & Walpola B.C (2008). Seed germination and early seedling growth of Brinjal ( Solanum melongena ) as affected by heavy metals. Proceedings of the Thirteenth International Forestry and Environment Symposium, Sri Jayawardenepura University, 76.
86
U, A. K. K. I., S, S., C, W. B., K, A. M. K. T., I, P., & S, K. H. K. M. (2008). Development of home gardens at tsunami affected Madiha, Southern Sri Lanka. Proceedings of the 1 st conference of the CIDA restore project, 1.
87
C, W. B., D, Y. T. S., & D, W. S. (2007). Effect of different mixtures of vermicompost and coir dust on soil microbial activity. Proceedings of the 63 rd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 26.
88
D, W. S., C, W. B., & P, S. A. (2007). Mineralization and release of inorganic nitrogen in soils amended with animal manure. Proceedings of the 63 rd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 73.
89
C, W. B., N, P. B. W., & D, W. S. (2007). N mineralization of soil as affected by different mixtures of vermicompost and coir dust. Proceedings of the 63 rd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 187-188.
90
C, W. B., N, P. B. W., D, Y. T. S., & D, W. S. (2007). Effect of different mixtures of vermicompost and coir dust on soil fertility. Proceedings of the Twelfth Forestry and Environment Symposium, Sri Jayawardenepura University, 49.
91
B.C, W., A.P, S., & S.D, W. (2007). Carbon mineralization of Gliricidia leaves as affected by particle size. Proceedings of the 2 nd International symposium, Sabaragamuwa University of Sri Lanka, 78.
92
B.C, W., S.D, W., U, A. K. K. I., & U, W. (2006). Impact of human intervention on soil degradation in the Nilwala project. Proceedings of the Fourth Academic Sessions, University of Ruhuna, 187-191.
93
B.C, W., S.D, W., & J.A, L. (2006). Influence of the herbicide propanil on soil microbial biomass as affected by the rate of application. Proceedings of the 62 nd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 178.
94
K.K.I.U, A., U, W., B.C, W., & S, S. (2006). Effect of media and moisture on rooting of Gymnema sylvestre stem cuttings. Proceedings of the Fourth Academic Sessions, University of Ruhuna, 33.
95
U, A. K. K. I., U, W., S, S., & C, W. B. (2006). Effects of hormone on the rooting of semi hard wood, double-nodal leafy stem cuttings of Gymnema sylvestre. Proceedings of the 62 nd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 16.
96
C, W. B., D, W. S., & A, L. J. (2006). Influence of the herbicide glyphosate on soil microbial biomass as affected by the rate of application. Proceedings of the 62 nd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 30.
97
U, A. K. K. I., U, W., C, W. B., & S, S. (2006). The effect of number of leaves and length of cutting on rooting of masbedda ( Gymnema sylvestre) cuttings. Proceedings of the 62 nd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 170.
98
U, A. K. K. I., U, W., C, W. B., & S, S. (2006). Effect of physiological stage on rooting of Masbedda ( Gymnema sylvestre ) cuttings. Proceedings of the eleventh Forestry and Environment Symposium, Sri Jayawardenepura University, 27.
99
K.K.I.U, A., U, W., & B.C, W. (2006). Studies on the vegetation of a site influenced by the Nilwala Project. Proceedings of the Fourth Academic Sessions, University of Ruhuna, 33.
100
S, S., B.C, W., W.P.A.S, S., A.A, K., L.D, M., & M.De.S, L. (2005). In: After the Tsunami–Relief and Rehabilitation in Sri Lanka (Domroes M., Ed), Mosaic Books, New Delhi, pp. 170 -182.
101
B.C, W., W.P.A.S, S., S, S., S, L. M. D., L.D, M., & A.A, K. (2005). Studies on soil properties of tsunami affected areas in Southern Sri Lanka. Proceedings of the Third Academic Sessions, University of Ruhuna, 246-250.
102
B.C, W., A, S., S, S., A.A, K., M.De.S, L., R, S., & L.D, M. (2005). Soil organic matter and wet aggregate stability in tsunami affected soils in Hambantota District, Southern Sri Lanka. Proceedings of the tenth Forestry and Environment Symposium, Sri Jayawardenepura University, 27.
103
U, A. K. K. I., U, W., C, W. B., & S, S. (2005). An assessment on natural regeneration of Gymnema sylvestre, a rare medicinal plant. Proceedings of the tenth Forestry and Environment Symposium, Sri Jayawardenepura University, 59.
104
U, A. K. K. I., U, W., S, S., & C, W. B. (2005). An assessment on Rath handun ( Pterocarpus santalinus Linn.f. ) population in some areas in Matara district, Southern Sri Lanka. Proceedings of the 61 st Annual Sessions of the Sri Lanka Association for the Advancement of Science, 106.
105
B.C, W., & S.D, W. (2005). Organic matter and nutrient status of some selected tea growing soils in the Matara District. Proceedings of the 61 st Annual Sessions of the Sri Lanka Association for the Advancement of Science, 108.
106
K.K.I.U, A., U, W., R, S., & B.C, W. (2005). Dry matter accumulation of three selected salt tolerant plant species as influenced by the method of establishment. Proceedings of the 61 st Annual Sessions of the Sri Lanka Association for the Advancement of Science, 108.
107
B.C, W., S.D, W., & J.A, L. (2005). Influence of propanil on soil nitrogen mineralization as affected by the rate of application. Proceedings of the 61 st Annual Sessions of the Sri Lanka Association for the Advancement of Science, 109.
108
B.C, W., S.D, W., & J.A, L. (2004). Effect of glyphosate on soil nitrogen mineralization. Proceedings of the Second Academic Sessions, University of Ruhuna, 187-191.
109
B.C, W., S.D, W., & J.A, L. (2004). Influence of propanil and glyphosate on soil microbial activity. Proceedings of the Second Academic Sessions, University of Ruhuna, 20-26.
110
B.C, W., & S.D, W. (2004). Soil organic matter and nutrient status of some vegetable growing soils in Matara district. Proceedings of the ninth Forestry and Environment Symposium, Sri Jayawardenepura University, 12.
111
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