Effect of organic fertilizer on nutritional status of <i>Hibiscus sabdariffa</i> at a vegetative stage of growth

Abstract

Field experiment was conducted at Research Farm of Kano University of Science and Technology, Wudil, to determine the effects of organic fertilizer on the nutritional status of Hibiscus sabdariffa (Roselle). The results obtained indicated the manure fertilizer to be higher in protein (20.910%) and crude fiber contents (12.047%), Zn (30.689mg/kg) and Cu (18.571mg/kg) concentrations, no Pb was detected at all. However, the difference that exists amongst the fertilizers (T2 and T3) and poultry manure (T1) was found to be insignificant in so many parameters. Therefore, the study work with regard to the findings revealed that organic fertilizer (poultry manure) had the potential over the inorganic fertilizers for the dietary nutrients yielding in vegetables Hibiscus sabdariffa. However, the information will economically favor our local farmers and users to adapt the cheapest poultry manure for the optimum yield of qualitative produce vegetable as prospective against malnutrition in Nigeria especially North East where endemically affected by war.

Keywords: Roselle leaves, vegetative stage, proximate analysis, elements, Kano