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Saman Dharmakeerthi
Saman Dharmakeerthi
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Title
Cited by
Cited by
Year
Effect of rice-husk biochar on selected soil properties in tropical Alfisols
DNV Gamage, RB Mapa, RS Dharmakeerthi, A Biswas
Soil Research 54 (3), 302-310, 2016
952016
Urease activity in soils: A review
RS Dharmakeerthi, MW Thenabadu
Journal of the National Science Council of Sri Lanka 24, 159-195, 1996
881996
Factors contributing to changes in plant available nitrogen across a variable landscape
RS Dharmakeerthi, BD Kay, EG Beauchamp
Soil Science Society of America Journal 69 (2), 453-462, 2005
852005
Effect of rubber wood biochar on nutrition and growth of nursery plants of Hevea brasiliensis established in an Ultisol
RS Dharmakeerthi, JAS Chandrasiri, VU Edirimanne
SpringerPlus 1, 1-12, 2012
712012
Spatial variability of in‐season nitrogen uptake by corn across a variable landscape as affected by management
RS Dharmakeerthi, BD Kay, EG Beauchamp
Agronomy Journal 98 (2), 255-264, 2006
582006
Integrating soil and weather data to describe variability in plant available nitrogen
BD Kay, AA Mahboubi, EG Beauchamp, RS Dharmakeerthi
Soil Science Society of America Journal 70 (4), 1210-1221, 2006
552006
Manual of soil sampling and analysis
RS Dharmakeerthi, SP Indraratne, D Kumaragamage
Soil Science Society of Sri Lanka, Peradeniya, Sri Lanka, 57-61, 2007
542007
Organic carbon dynamics in soils with pyrogenic organic matter that received plant residue additions over seven years
RS Dharmakeerthi, K Hanley, T Whitman, D Woolf, J Lehmann
Soil Biology and Biochemistry 88, 268-274, 2015
362015
Phosphorus release from unamended and gypsum-or biochar-amended soils under simulated snowmelt and summer flooding conditions
RS Dharmakeerthi, D Kumaragamage, D Goltz, SP Indraratne
Journal of Environmental Quality 48, 822–830, 2019
222019
Effect of soil disturbance on N availability across a variable landscape in southern Ontario
RS Dharmakeerthi, BD Kay, EG Beauchamp
Soil and Tillage Research 79 (1), 101-112, 2004
222004
Effectiveness of fungal bacterial interactions as biofilmed biofertilizers on enhancement of root growth of Hevea seedlings
RP Hettiarachchi, RS Dharmakeerthi, AN Jayakody, G Seneviratne, ...
Journal of Environmental Professionals Sri Lanka 3 (2), 2014
202014
High C/N materials mixed with cattle manure as organic amendments to improve soil productivity and nutrient availability
AA Mariaselvam, WS Dandeniya, SP Indraratne, RS Dharmkeerthi
Postgraduate Institute of Agriculture, University of Peradeniya: Peradeniya, 2014
172014
Gypsum amendment reduces redox-induced phosphorous release from freshly manured, flooded soils to floodwater
RS Dharmakeerthi, D Kumaragamage, SP Indraratne, D Goltz
Journal of Environmental Quality 48, 127–135, 2019
162019
Carbon mineralization dynamics of organic materials and their usage in the restoration of degraded tropical tea-growing soil
LRMC Liyanage, MF Sulaiman, R Ismail, GP Gunaratne, ...
Agronomy 11 (6), 1191, 2021
112021
Potential for rubber (Hevea brasiliensis Muell. Arg) cultivation in the Eastern Province of Sri Lanka
VHL Rodrigo, SMM Iqbal, RS Dharmakeerthi
NSF. Colombo, 2011
102011
Nutritional status of rubber growing soils in the Moneragala district
RS Dharmakeerthi, SN Silva, A Yakandawala, WK Jayasinghe
Journal of the Rubber Research Institute of Sri Lanka 87, 23-35, 2005
92005
Design and Development of a Double-chamber Down Draft (DcDD) pyrolyzer for biochar production from rice husk
A Alahakoon, AK Karunarathna, RS Dharmakeerthi, F Silva
Journal of Biosystems Engineering 47 (4), 458-467, 2022
82022
Effect of stock pruning on shoot and root growth of budded polybag plants of Hevea brasiliensis.
RS Dharmakeerthi, A Senevirathna, VU Edirimanne, JAS Chandrasiri
82008
Adoption of eco-friendly technologies to reduce chemical fertilizer usage in paddy farming in Sri Lanka: An expert perception analysis
N Chandrasiri, UK Jayasinghe-Mudalige, RS Dharmakeerthi, ...
Journal of Technology and Value Addition 1 (1), 19-30, 2021
72021
Fertilizer usage and land productivity in intensively cultivated vegetable farming systems in Sri Lanka: an analysis based on a questionnaire survey
HAN Upekshani, RS Dharmakeerthi, P Weerasinghe, WS Dandeniya
Tropical Agricultural Research 30 (1), 44 – 55, 2018
72018
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Articles 1–20