Authors : S.A. Ige, S.A. Abolusoro, C.O. Aremu, O.B. Bello and A.A. Gbadamosi
Abstract: Performance of carrots varies with levels of fertilizer application. As a root crop, maintaining high root yield requires knowledge of the optimal fertilizer requirement, especially, when production soil type is characterized by gravels indicating low moisture retention ability. Reduction in the loading of galvanized soil with inorganic fertilizer is crucial in enhancing soil moisture retention and growing healthy food crops with minimal chemical residue. This study was conducted at Landmark University during growing season of 2015 and 2016 to assess the differential response of three carrot genotypes to different levels of organic and inorganic fertilizer application in Southern Savanna Zone. The experiments were conducted using a randomized complete block design with three replications. Data collected on leave number, fresh leave weight, plant height and fresh root weight were subjected to analysis of variance. Difference between means were partitioned using duncan multiple range test at 5% probability level (p = 0.05). The study revealed that at application of 1 t/ha of organic fertilizer, the three carrot genotypes responded differently and significantly for fresh root yield. At all levels of both organic and inorganic fertilizer applications, the three carrot genotypes responded differentially for root yield either significant or non-significant at different levels of fertilizer application. This study identified that growing ibaka oma and ohama oma carrot genotypes under the organic manure regime (1 and 2 t/ha) highest root yields of 40.87, 41.48 and 41.58 t/ha. These identified genotypes can be grown organically for health benefits in guinea savanna ecology.
S.A. Ige, S.A. Abolusoro, C.O. Aremu, O.B. Bello and A.A. Gbadamosi, 2019. Differential Response of Carrot Genotypes to Organic and Inorganic Fertilizer Applications in Derived Guinea Savanna Characterized with Galvanized Soil. Journal of Engineering and Applied Sciences, 14: 8727-8732.