Effect of mineralized nitrogen through decomposition of plant residues on the uptake of maize (Zea mays L.) in sudan savannah ecological zone of Nigeria

A field experiment was designed to determine the effect of mineralized nitrogen (N) through decomposition leafy biomass agroforestry tree species as residues underscore its uptake by maize under Sudan savannah conditions. The laid out 3 x 4 2 factorial in a split-split plot design with three replicates for two cropping seasons. factors considered include: control, (Albizia lebbeck and Parkia biglobosa) main plots, four levels fertilizer (0, 40, 80, 120 kg N ha-1) sub-plots, varieties (DMR-ESR-7 2009 EVAT) sub-sub plots. Data were analysed using Analysis Variance (ANOVA). Chemical composition A. had higher average contents (32.4 g kg-1) C (186.4 lower C: ratio (57.5) than P. biglobosa this affected their rates, hence, decomposed faster biglobosa. 56 % litter bags released within first weeks incorporation progressively increased up 10 after planting (WAP). Total lowest (2.8 highest (8.6 amended It is then concluded that total crop rapidly between 4-6 WAP, impact obvious plots during