National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Progressive increase in urban area, more particularly with construction of buildings is reducing the availability of land for agriculture. The demand for food is also rapidly increasing with increase in population. Hence, it is difficult to feed the growing population with limiting land resources. In that context, there is ample scope for rooftop cultivation to solve the problem of land shortage for agricultural production. Proper irrigation scheduling for crops grown on rooftops is yet to be established. Irrigation scheduling is only possible by knowing the actual crop evapotranspiration. Rooftop greenhouses are being found more suitable and widely adopted for rooftop cultivation due to their advantages of protecting the crop from biotic and abiotic agents. It also enhances the yield and product quality. Irrigation scheduling differs inside and outside the greenhouse due to the variation in climatic condition, which leads to the variation in actual crop evapotranspiration. It also varies with altitude. Hence, keeping this research gap in view an experiment was conducted at rooftop of the College of Agricultural Engineering and Technology, OUAT, Bhubaneswar to determine actual crop evapotranspiration of widely grown vegetable crop green chilli. Both inside and outside crop evapotranspiration and their variations were studied using water balance model under four MAD levels of deficit irrigation. Highest crop evapotranspiration was found to be 312.89mm inside the greenhouse which was lower than the crop evapotranspiration outside greenhouse for treatment under 10% MAD level. The treatment with 10% MAD level performed best amongst all other treatments in terms of plant growth and crop yield. The maximum yield was 268.5 g/plant.
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