Effect of INM on quality of Okra (Abelmoschus esculentus L.) under teak (Tectona grandis L. f.) based agroforestry system

Abstract

The investigation on ‘Effect of INM (Integrated Nitrogen Management) on quality of Okra (Abelmoschus esculentus L.) under Teak based agroforestry system was conducted during summer season in the years of 2019 and 2020, at College Farm (Block-A, Plot No-21), N. M. College of Agriculture, Navsari Agricultural University, Navsari, Gujarat, India. The trial was framed with eleven different treatments comprised of combinations of vermicompost, neem cake and chemical fertilizers in various proportions i.e. 25 per cent, 50 per cent, 75 per cent and 100 per cent of recommend does of nitrogen in the form of organic and inorganic fertilizers under teak plantation and open condition in Randomized Block Design (RBD) consisting of three replications. The result showed that quality parameters viz., nitrogen (2.44%) and protein content (15.25%) in fruit of okra recorded maximum in T6: 50% RDN through Neem coated urea + 50% RDN through Vermicompost under teak based agroforestry system. However, the lowest nitrogen (2.23%) and protein content (13.94%) of okra fruit were recorded in T9: 100% RDN through Neem cake under teak based agroforestry system. While, crude fiber content of okra fruit was not significantly influenced by different INM treatments. However, INM treatments exhibited superior value regarding quality parameters as compared to the treatments receiving recommended dose of fertilizers through chemicals.