Evaluation of growth response of Parkia biglobosa (JACQ) under different levels of organic manures

Abstract

An investigation was carried out to evaluate early growth of Parkia biglobosa under different levels of organic manures in the nursery in order to promote its sustained utilization and regeneration. Seeds were sown in the germination bed at the nursery of Department of Forestry and Fisheries of KSUST, Aliero which took average of three days to germinate and at two weeks after germination, seedlings were transplanted into polythene bags (16 × 14 × 12 cm) filled with cow dung, poultry manure and farmyard manure at 40, 70 and 100 g kg^–1 of top soil and top soil only was used as control. The experiment was laid in a completely randomized design with nine replications. Data collection commenced two weeks after transplanting and was done fortnightly for 12 weeks on stem height, collar diameter and number of leaves. Biomass was assessed at twelve weeks and the data were analysed using analysis of variance and follow up tests were conducted with Duncan Multiple Range Tests. The result revealed significant effect on all the variables (stem height, collar diameter and number of leaves) assessed, where poultry droppings at 40 g kg^–1 and cow dung at 100 g kg^–1 gave the highest growth and cow dung was recommended.