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ICDA 2020: Recent submissions

Now showing items 1-20 of 66

Suitability of Groundwater for Drinking in Valukkai Aru Drainage Basin

Sheetharon, M.; Mikunthan, T. (University of Jaffna, 2020)

The surface stream, Valukkai Aru, in Jaffna Peninsula, Sri Lanka is only active during the monsoon and there are no reservoirs of a perennial nature. There are complaints by farmers regarding salinity problem in this area ...
Analysis of Rainfall Pattern over the Iranaimadu Tank during the Last Three Decades

Lathiscumar, S.; Umasuthan, S. (University of Jaffna, 2020)

Iranaimadu tank is one of the major irrigation tanks in Northern Province of Sri Lanka. Water from this tank is used to irrigate agricultural lands in the Northern Province. Predictions on rainfall patterns are useful in ...
Design, Fabrication and Performance Evaluation of Millets (Eleusine coracana) Cleaning Machine for Domestic Level

Palugaswewa, K.I.T.M. (University of Jaffna, 2020)

Finger millet is one of the most important food in human diet in the past as same as at present; because it contains large amount of nutrients. At the same time finger millet has a high demand in the society because most ...
Analysis of Residual Chlorine Concentration in Water Distribution System in Vavuniya District

Thinarthika, T.; Mikunthan, T.; Prabhaharan, M.; Saravanan, S. (University of Jaffna, 2020)

Per Aru reservoir is located in Vavuniya District and water from the reservoir is treated through the water treatment plant. Chlorine is used as a disinfectant and it should ensure that there is a constant minimum residual ...
Households’ Willingness to Pay for the Sewerage System in Jaffna Municipal Area, Sri Lanka

Linoja, K.; Sooriyakumar, K.; Sivashankar, S. (University of Jaffna, 2020)

Groundwater is the only source for drinking water in Jaffna municipal area. There is no sewerage system in this congested municipal area. Each household’s toilet pits in this area have been constructed closer to their own ...
Design, Fabrication and Testing of Four-Wheel Tractor Mounted Upland Channel Maker

Rajethan, M.; Alvaappillai, P. (University of Jaffna, 2020)

Irrigation is one of the very important practice in agriculture. There are many types of irrigation. Drip and Sprinkler are highly profitable irrigation systems with higher water application efficiency and less operational ...
Spatial Variability of Soil Carbon and Its Relationship with Nutrient Availability in Paddy Soils of Trincomalee District, Sri Lanka

Chathuranga, D.M.B.A.; Paranavithana, T.M.; Gnanavelrajah, N.; Ratnayake, R.R. (University of Jaffna, 2020)

Global warming is likely to be the most threatening environmental issue. Hence, the soil’s contribution to reducing CO2 concentration from the atmosphere through the process of soil carbon sequestration has gained considerable ...
Application of Cattle and Poultry Manures in Combination with Foliar Application of Vermiwash on Growth and Yield of Okra

Samiraja, D.S.M.M.S.M.; Harris, K.D.; Attanayake, A.M.K.D.M. (University of Jaffna, 2020)

As a cost-effective and ecological sustainable process vermitechnology has a great future in the field of organic waste management. Vermiwash, leachate produced during the process of vermicomposting contains macro and ...
Isolation and Identification of Efficient Phosphate Solubilizing Bacteria from Soil and Its Effect on Growth and Yield of Zea mays

Koswaththa, K.R.H.D.; Dissanayaka, P.S.; Gnanavelrajah, N.; Abhiramy, K. (University of Jaffna, 2020)

Phosphorus is an essential element for plant growth and development. However, phosphorous is highly insoluble and unavailable to the plant uptake when phosphate anions react with Ca2+, Mg2+, Fe3+ and Al3+. Phosphate ...
Effect of Different Levels of Nitrogen Fertilizer on Growth and Yield Performance of Different Varieties of Groundnut (Arachis hypogea L.)

Kapilan, K.; Pradheeban, L.; Nishanthan, K. (University of Jaffna, 2020)

Efficient utilization of applied fertilizer is essential to reduce the cost of fertilizer as well as environmental pollution. An experiment was conducted to assess the effect of different levels of nitrogen fertilizer on ...
Effect of Gypsum Application on Yield Performance of Ground Nut (Arachis hypogea L) Varieties in Kilinochchi District, Sri Lanka

Thivakaran, N.; Pradheeban, L.; Nishanthan, K. (University of Jaffna, 2020)

Groundnut (Arachis hypogea L.) is an important oil crop grown in Sri Lanka. Application of fertilizer is substantially contributing to the yield increment; however improper management of fertilizer and minerals is the ...
Formulation of Organic Liquid Fertilizers and their Effects on Germination of Selected Seeds and Growth and Yield of Chilli (Capsicum frutescens L.)

Kalaivani, S.; Gnanavelrajah, N. (University of Jaffna, 2020)

The present study was aimed to formulate organic liquid fertilizers using banana pseudostem and to assess their potential use in the germination of selected seeds (i.e., chilli, curry chilli, lettuce and water spinach), ...
Mapping Soil pH and Electrical Conductivity of Sugarcane (Saccharam officinarum) Land Using Arc GIS in Gal-Oya Plantation, Ampara, Sri Lanka

Priyadarshana, P.G.B.; Perera, T.A.N.T.; Wijekoon, W.M.C.J.; Senevirathna, D.G.P.G.C.; Surath Perera, M.M.D.; Jayasinghe, G.Y. (University of Jaffna, 2020)

Gal-Oya plantation (2750 ha) is one of the main sugarcane growers in Ampara district. The yield produced by the plants depends on several soil parameters. Objective of this study was to evaluate and map the soil pH and ...
Production of Single Cell Protein from Underutilized Sea Weed Turbinaria Spp Using Mixed Culture of Palmyrah Toddy

Shayanthavi, S.; Kapilan, R. (University of Jaffna, 2020)

Due to the steep increasing global population, the demand for protein increases day by day. To overcome the protein shortage, single cell protein (SCP) is used as a protein supplement for human and animals. This study was ...
Shade Curing Reduce the Postharvest Loss of Big Onion (Allium cepa) Selection ‘Dambulla Red’ at Ambient Storage Conditions

Samarasinghe, Y.M.P.; Kumara, B.A.M.S.; Wijewardana, R.M.N.A. (University of Jaffna, 2020)

Big onion (Allium cepa) is considered as a high value cash crop in Sri Lanka, where it is one of the largely consumed condiment. However, big onions are subjected to high postharvest losses during the storage period due ...
Development of an Artificial Ripening Protocol for Cultivated Variety of “Karuthakolomban” Mango (Mangifera indica L.) Available in Anuradhapura District, Sri Lanka

Nimalika Sewwandi, K.A.; Wijewardane, R.M.N.A.; Vasantharuba, S. (University of Jaffna, 2020)

Mango (Mangifera indica L.) is one of the widely cultivated fruit crop in the dry zone of Sri Lanka. This study aimed to develop an artificial ripening protocol for mango cultivated variety “Karuthakolomban” available in ...
Evaluation of the Effectiveness of Modified Atmospheric Packaging on Postharvest Life of Curry Leaves (Murraya koenigii L.)

Kumara, B.A.M.S.; Ekanayake, L.S.K.; Weerasinghe, W.M.S.S.K.; Wijewardane, R.M.N.A.; Sarananda, K.H. (University of Jaffna, 2020)

Curry leaves (Murraya koenigii L.) is a popular leafy spice, leafy vegetable and medicinal plant which is being used for culinary purposes as well as medicinal treatments. However, postharvest shelf life (PSL) under ambient ...
Isolation of Lactic Acid Bacteria from Idli Batter and Assessing their Antibacterial Potential

Bernard, D.; Jeyagowri, N.; Madhujith, T. (University of Jaffna, 2020)

Idli is one of the flour-based fermented foods that can potentially contain probiotic lactic acid bacteria. This study was designed to isolate and determine antibacterial activity of lactic acid bacteria from Idli batter, ...
Effect of Natural Edible Coatings on Quality Characteristics and Storage Behaviour of Mango (Mangifera indica L.) during Cold Storage Conditions

Weerasinghe, W.M.S.S.K.; Kumara, B.A.M.S.; Wijewardane, R.M.N.A.; Wasala, W.M.C.B. (University of Jaffna, 2020)

Mango is an economically important seasonal fruit facing greater problems in storage and transportation to long distance market because of its perishable nature. Natural edible coatings have been proved for enhancing shelf ...
Optimization of Bioethanol Production from Chara globularis Using Saccharomyces cerevisiae

Christy, E. J. S. B. A.; Kapilan, R.; Wickramasinghe, I.; Wijesekara, W. L. I. (University of Jaffna, 2020)

Ethanol is one of the important alternative energy sources to fossil fuels. Since Sri Lanka has a huge amount of inland water resources and plenty of diverse under-utilized flora which are rich in cellulosic substrates, ...

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