An experiment was conducted to study the comparative effect of organic fertilizer, Bio-fertilizer, bio-promoters and mixed fertilizers on the growth and yield of okra (Abelmoschusesculentus). The experiment consisted of four treatments along with one control. The soil was treated one week before sowing. The treatments were laid in a completely randomized design with two replications. Plant growth was assessed for morphological trait such as seeds germination, plant height, fresh root weight, root branches and fruit yield. The application of different treatments had significant effects on all the parameters assessed. The application of T1 gave better germination of seeds (62.34%). T3 gave plants with the greatest plant height (167 cm); T2 gave the better root branches (38) whereas T2 and T3 gave maximum root fresh weight (36.43 gm and 36.5 gm respectively). The application of T2 gave maximum fruit yield (15.7Kg). The overall performance on highest yield was observed for T2 followed by T1. The data obtained from these treatments were significantly higher than the data obtained from the control. It was, therefore, concluded that the use of organic manure in the production of vegetables like okra should be encouraged.

Keywords: Okra; Organic Fertilizer; Bio-Fertilizer; Chemical Fertilizer; Environment; Growth and Yield.