Fruit yield response of okra at different levels of phosphorus and zinc

Abstract

Abstract : Interaction effects of phosphorus and zinc on fruit yield and yield contributing characters, such as days to anthesis, plant height, number of branches plant \ fruit length, fruit diameter, single fruit weight and number of fruits plant 1 of okra were assessed in a trial during summer 2004 at the Bangabandhu Sheikh Mujibur Rahman Agricultural University farm. The experiment was conducted in a split plot design with four levels of P (0, 15, 30, and 45 kg ha'1) assigned in the main plots and four levels of Zn (0, 1.5, 3 and 4.5 kg ha'1) in the sub-plots, along with the recommended doses of N, K and cow dung. The highest fruit yield (18.06 t ha ’), which was attributed due to the best performance of yield attributes, was found with the application of 30 kg phosphorus (Pjo) and 3 kg zinc (Zm) ha Okra plants with both higher and lower levels of P and Zn than IV Zn* produced lower fruit yield. Economic analysis as well as yield response regression curve suggest that 30 kg P and 3 kg Zn ha1 is optimum for okra cultivation on the silly clay loam soil in the AEZ of Madhupur Tract.