Tillage and Organic Amendments effects on leaf nutrient concentration, growth and yield of trifoliate yam (Dioscorea dumentorum) in Southwestern Nigeria.
Publication Date : 02/02/2019
Population pressures have enforced the shortening of the fallow period and field rotation cycle resulting in the loss of soil productivity with a consequent reduction in crop yield. Therefore, field experiment was conducted in Ado and Akure during the cropping season of 2014 to evaluate the tillage and organic amendments effects on leaf nutrient concentration, growth and yield of trifoliate yam (Dioscorea dumentorum). The experiment was laid out in a randomized complete block design with three replications. Tillage treatments were Mound (Mt), Bed (Bt) and No tillage (Nt) incorporated with organic amendments which were Poultry manure (PM) at 20tha-1, Wood Ash (WA) at 20tha-1 and a Control (CTRL) (no soil amendment). Data collected on leaf nutrient concentration, growth and yield performances were subjected to analysis of variance (ANOVA) with the means separated using Duncan’s Multiple Range Test (DMRT). Results of this study indicated that leaf nutrient concentration was significantly (p≤0.05) affected by organic amendments only. Growth and yield were significantly (p≤0.05) increased in sole application of Mt and WA in both locations. Relative to average of all the treatment combinations, Mt x WA significantly increased the tuber weight by 89% in Ado and 50% in Akure respectively.
No. of Downloads :