Effects of combined application of NPK and foliar fertilizer (Boost-extra) on yield and yield components of Maize (Zea mays L.) in Mubi, Northern Guinea Savannah zone of Nigeria
By: Nedamanya Bamai, Kwaga M. Yamma, Wamduda Daniel, Babayola Muazu, Samaila T. Jeremiah.
Key Words: Boost-Extra foliar fertilizer, NPK soil applied fertilizer, Maize (Zea mays L.).
Int. J. Agron. Agri. Res. 9(6), 118-125, December 2016.
Field trial was carried out in 2012 at Teaching and Research Farm of Adamawa State University, Mubi in the Northern Guinea Savanah zone of Nigeria, to determine the effects of Boost-extra foliar fertilizer and NPK levels on yield and yield components of maize. A split-plot design consisting two maize varieties, Oba-98 and TZSR-W in the main-plots and seven fertilizer levels in the sub-plots (T1 Control = 0:0:0 kg N,P2O5,K2O ha-1+0l ha-1 Boost-Extra; T2 = 120:60:60kg N,P2O5,K2O ha-1+6lha-1 Boost-Extra; T3 = 90:45:45 kg N,P2O5,K2O ha-1+6lha-1 Boost-Extra; T4 = 60:30:30kg N,P2O5,K2O ha-1+6lha-1 Boost-Extra; T5 = 30:15:15kg N,P2O5,K2O ha-1+6lha-1 Boost-Extra; T6 = 0:0:0kg N,P2O5,K2O ha-1+6lha-1 Boost-Extra; T7 = 120:60:60kg N:P2O5:K2O ha-1+0l ha-1 Boost-Extra) replicated three times was adopted. Grain yield and yield components were analyzed using analysis of variance (ANOVA) with SAS package at P = 0.05. The means were separated using Duncan’s Multiple Range Test (DMRT). Results of the study showed application of Boost-Extra at 6l ha-1 rate had no significant effect on maize grain yield and yield components, while grain yield was further enhanced with increasing soil fertilizer dose up to 120:60:60kg N:P2O5:K2O ha-1, regardless of Boost-Extra. Application of soil fertilizer 120:60:60kg N:P2O5:K2O ha-1 gave the highest grain yield. Thus, application of soil fertilizer 120:60:60kg N:P2O5:K2O ha-1 is recommended for optimum maize production in Mubi area, Northern Guinea Savannah Zone of Nigeria.