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Welcome to the Institutional Repository of SriLanka Technology Campus (SLTC). The repository is a digital service that collects, preserves, and distributes the institution's scholarly output. It provides open access to research publications by the institution's academic staff and students.

The repository includes journal articles, conference papers, books, book chapters, theses and dissertations, undergraduate research, conference proceedings, Webinars, and other scholarly materials.

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Recent Submissions

Abstract on HID Theory (Hidden Ignitable Domain) for Management
(Sri Lanka Technology Campus, 2022) Haputhanthri, Hashan Travis
In an organization where people lead with KPIs or targets can be lead into various anxious events. Many individuals go through psychotrauma, psycho downfalls or psycho de motivation and it can lead to frustrations and that can sequentially lead to depression and then to suicide. My 30 years of experience in many multinational organizations, both local and overseas and working with SMEs and entrepreneurs, I have witnessed people with lack of self-motivation to overcome such hard situations. Students also has this issue of losing confidence of themselves, to a subject and even with their lives due to lack of coping skills. Positivity is not an element in your genes. It has to be acquired. High performance is a mentally acquired status. Speed of work or your capacity has to be earned and move to your brain. Bruce W.Tuckman,Thomas L.Sexton mentioned and sighted, Comparisons between self-believers, the self-unsure, and self doubters showed that self-believers perform the most, outperform even their own self-expectations, and are unaffected by most external conditions while self-doubters perform the least (almost nothing), underperform even their own self-expectations, but perform more in structured, well-defined situations with the opportunity for goalsetting and planning beforehand and feedback afterward [1]. Bruce W.Tuckman,Thomas L.Sexton, once again sighting a study that is elaborating self-efficacy theory of Bandura’s says, Unlike other studies, the relationship between those self-beliefs, and behaviour was measured over a series of behavioural trials. College females took a series of mathematical word problem tests in which they chose the level of problem difficulty and the amount of effort to expand. A path analysis procedure was used to test the relationships based on Bandura's self-efficacy theory. Self-efficacy was, at the beginning of the task, the major contributor to task level choice but it was past behaviour that emerged as the primary predictor of future choice. After three trials persistence was related to self-efficacy and previous performance [2]. According to Freud's psychoanalytic theory, the id is the primitive and instinctual part of the mind that contains sexual and aggressive drives and hidden memories, the super-ego operates as a moral conscience, and the ego is the realistic part that mediates between the desires of the id and the super-ego [3].
Effects of Compost, Biochar, and Inorganic Fertilizer Combinations on the Growth and Yield of Bushita Bean (Vigna unguiculata)
(Sri Lanka Technology Campus, 2022) Indeewara, W. G. U.; Nanayakkara, D.; Ranamukhaarachchi, S. L.
Soil organic matter (SOM) is a critical component of soil management to support the growth and development of crops. Compost and biochar are popular soil amendments used to enhance the SOM content. The current study was conducted to determine the contribution of biochar in raising the growth and pod yield of bushita beans and the benefits of supplementing with inorganic fertilizers. The experiment was conducted in a farmer’s field at Vitharandeniya in the district of Hambantota, Sri Lanka from February to May 2022. Six soil amendment levels and two fertilizer management levels were tested in a 6 x 2 factorial experimental arranged in a split-plot design with three replicates. Growth and yield data were gathered during the study. The results showed that plant growth in terms of height, and yield and yield components, i.e., the number of pods per plant, the length of pods, weight of pods per plant, and pod yield were greater in plots that received 2% SOM from biochar, compared to the same content of SOM by compost, none and 1% SOM by biochar. Adding biochar to maintain 3 and 4 percent SOM did not significantly raise bushita bean yield. Application of fertilizer raised bushita bean pod yield, but the difference was not significant. Therefore, maintaining 2% SOM using biochar was found beneficial. Since this finding is based on a single season experiment, further work is suggested before making firm recommendations
Effect of Salinity Stress on Brix %, Growth, and Yield in Chili Pepper
(Sri Lanka Technology Campus, 2022) Rathnayaka, R. M. S. M. B.; Sudasinghe, S. P.; Nemoto, Kazuhiro; Matsushima, Kenichi
Chili peppers (Capsicum spp.) are the most widely used spices for any cuisines and are getting popular not only as spices but also as a kind of vegetable. Taste components are very important factors when chili pepper using as a vegetable. Therefore, present experiment was conducted to find out the effect of salinity stress on the Brix, pod parameters, yield, and plant growth in chili pepper. The experiment was conducted in a greenhouse condition with three salinity levels using NaCl. The results and outcomes show that salinity stress conditions positively affect the Brix percentage of the harvest. However, salinity stress conditions negatively affected the plant growth and yield parameters.
Effect of Phosphorus Fertilizer and Temperature on Plant Growth and Fruit Parameters in Capsicum spp.
(Sri Lanka Technology Campus, 2022) Sudasinghe, S. P.; Rathnayaka, R. M. S. M. B.; Nemoto, Kazuhiro; Matsushima, Kenichi
Chili pepper (Capsicum spp.) is an important spice in the world food industry. Plant growth and fruit parameters vary with changing environmental factors and many experiments have been conducted to find out environmental effect for plant and fruit parameters in chili pepper except phosphorous (P) fertilizer and high temperature. Japanese agricultural soil rich in P fertilizer because of long term fertilizer application. High temperature is one of the major abiotic stress affecting plants, having adverse effects on growth and quality of the fruits of most plants. Therefore present experiment was conducted to find out the effect of excess phosphorus fertilizer and high temperature stress on plant growth and fruit parameters of chili. Three P fertilizer treatment (60, 300 and 600 g. m-2) and two temperature treatment (high temperature stress and control) were used for this experiment respectively in 2019 and 2020. According to the results, high temperature stress and excess P fertilizer condition negatively affected the plant growth and reduced the fruit size, length, weight and number of fruits than the control conditions. Therefore when growing chili pepper it is better to control temperature condition and supply only adequate P fertilizer quantity to get good growth and yield.
Agronomic Performance and Varietal Evaluation of Cowpea [Vigna unguiculata (L.) Walp] under Organic and Inorganic Fertilizers in Sri Lanka
(Sri Lanka Technology Campus, 2022) Thaksala, H. P. N.; Samaranayake, B. N.; Nanayakkara, D.; Amarasingha, R.; Gamage, C. S. M.; Ranamukaarachchi, S. L.
Cowpea is a widely cultivated food legume of Sri Lanka. With the banning of the importation of inorganic fertilizers cultivation of cowpea suffered and its prices drastically went up. This necessitated the finding of alternative sources of supplying essential plant nutrients. Six cowpea varieties, viz. ANKCP 01, ANKCP 02, Dawala, Waruni, ANKCM 13-6, and CP 246 were evaluated at Grain Legume and Oil Crop Research and Development Centre, Angunukolapelessa both in field and simulation modeling. Both cowpea varieties and fertilizer management significantly influenced the growth and yield of cowpea. Among the levels of fertility management, the use of DOA recommended practice, and the application of compost at 10 t/ha with the recommended fertilizers significantly improved the growth and Yield parameters, while of the varieties, ANKCP 01 significantly outyielded the rest of the varieties. Crop simulation using APSIM for Dawala variety, a popular variety simulated the same results in this study, which indicated the potential of using the APSIM model for simulating crop growth and yield of cowpea.