Use of Refused Tea as a Hydroponics Growing Medium for Lettuce (Lactuca sativa)

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dc.contributor.authorJayawardhane, R.M.I.D.
dc.contributor.authorWithanage, N.S.
dc.date.accessioned2022-03-23T05:57:39Z
dc.date.available2022-03-23T05:57:39Z
dc.date.issued2013
dc.description.abstractGoing through a process of withering, rolling, fermenting, drying and grading the finest black tea is collected whereas the left over brown tea is rejected as refused tea. The total annual tea production of the country is recorded as 326 million kilograms and 10 % of it is declared as ‘Refuse Tea’ (Sri Lanka Tea Board, 2012). But refused tea has more beneficial physical and chemical characteristics. Good aeration, good drainage and physical stability are some of those physical characteristics. Refused tea is also rich in important plant nutrients such as Nitrogen, Calcium and Potassium (Mohotti, 1999). Therefore, refused tea is used as a fertilizer, mulching material, dry litter material and a growing medium in mushroom production (Atapattu and Wickramasinghe, 2007; Rupasinghe and Nandasena, 2006; Dayananda and Wahundeniya, 2002). Refused tea is readily available in up country regions, where there is also a high potential for growing plants under hydroponics. Coir dust is the common growing medium used for hydroponics production in Sri Lanka and it is not abundantly available in up country areas. In this regard, refused tea would be an alternative hydroponics growing medium which can be used in up country area easily with low cost. Therefore, this research was conducted to assess the performances of refused tea as a hydroponics growing medium for lettuce (Lactuca sativa). Methodology The study was conducted during May to July 2013 in a protected house at the university premises. Different combinations of two growing media (coir dust and refused tea) were tested under five treatment levels (Table 1) replicating each three times and arranging them according to the Complete Randomized Design.en_US
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/8554/16-TEA-Use%20of%20Refused%20Tea%20as%20a%20Hydroponics%20Growing%20Medium%20for%20Lettuce%20%28Lactuca%20.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectAgricultureen_US
dc.subjectExport Agricultureen_US
dc.subjectCrop Productionen_US
dc.subjectVegetable Cultivationen_US
dc.subjectTea Industrialsen_US
dc.subjectTea Technologyen_US
dc.titleUse of Refused Tea as a Hydroponics Growing Medium for Lettuce (Lactuca sativa)en_US
dc.title.alternativeResearch Symposium 2013en_US
dc.typeOtheren_US
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