Tanimu et al Greener Journal of Agricultural Sciences Vol. 3 (5), pp. 371-383, May 2013. ISSN: 2276-7770 Research Paper Manuscript Number: 031313523 Effects of Cow Dung on the Growth and Development of Maize Crop J. Tanimu1*, E.O. Uyovbisere2, S.W.J. Lyocks3 and Y. Tanimu4 1 Department of Soil Science and Land Resources Management, Federal University Wukari, Taraba State. Formerly with Samaru College of Agriculture, Division of Agricultural Colleges, Ahmadu Bello University, Zaria. 2 Soil Science Department, Institute for Agricultural Research/Faculty of Agriculture, Ahmadu Bello University, Zaria. 3 Samaru College of Agriculture, Division of Agricultural Colleges, Ahmadu Bello University, Zaria. 4Department of Biological Sciences, Ahmadu Bello University, Zaria. *Corresponding Author’s Email: joseph.tanimu @ yahoo. com Abstract: A Greenhouse and Field experiments were conducted at the Institute for Agricultural Research and Samaru College of Agriculture, Ahmadu Bello University, Zaria. The objectives of the experiments were to evaluate the combine effects of cow dung subjected to different management practices and Urea fertilizer on some Maize growth parameters and to observe the residual effects of the cow dung in the second year. The experiment was a factorial experiment, 3 management practices, 4 duration of storage, and 2 nitrogen levels, laid out in a Randomized complete block design and replicated three times. The Greenhouse study revealed that, combining cow dung subjected to different management practices (pit covered May and surface heaped uncovered June) and Urea at 45 kg N ha-1 gave significantly (P < 0.05) higher dry matter yield and surface heaped covered April treatment gave taller plants, which were statistically at par with NPK treatment (120 kg N ha-1). The results of the field studies for the two years were consistent on the dry matter yield and plant height. The field studies showed that, the direct effect, N amended surface heaped covered April gave the highest Maize Stover yield for the two seasons, while on the residual effect, N amended, the surface heaped uncovered March treatments gave the highest stove yields. On plant height, the direct effect N amended surface heaped uncovered May treatments gave significantly taller plants than all other treatments in the two seasons. While on the residual effect, the surface heaped covered April treatment was the one that gave taller plants in the two seasons. Keywords: Organic Carbon, Total Nitrogen, Cow dung, management practices, urea fertilizer, growth parameters and maize. Return to Content View Reprint (PDF) (254KB)