Effect of different micro-nutrients (B, Zn & Cu) on the growth, yield and tuber quality of Carrot (Daucus carota L.) under Teak based Agroforestry system

The carrot (Daucus Carota L.) is the most important crop of Apiaceae family. An experiment laid out in a Randomized Block Design (RBD) with nine treatments, each replicated three times and each plot size of 4m2 was conducted in the Forestry Research farm, Department of Silviculture and Agroforestry, Sam Higginbottom University of Agriculture, Technology & Sciences Allahabad, during the winter (Rabi) season of 2017-2018. The crop was applied with recommended dose of fertilizer i.e., N, P and K application of organic manure i.e., Farm yard manure along with the combination of different micro-nutrients of Boron, Zinc and Copper. The results concluded that the treatment T8 (1.5% Zn + 2% B + 2% Cu t/ha) was found to be the best treatment followed by the treatment T3 (1.5% Zn + 1.5% B + 1.5% Cu t/ha) which beneficially and significantly improved the growth parameters and tuber yield of carrot grown under teak based agroforestry systems in Allahabad Agroclimatic conditions. This treatment also showed maximum gross return, net return and benefit: cost ratio i.e. 1:2.46.