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Field experiments to study the performance of maize varieties (Zea mays L.) under different rates of nitrogen fertilizer and cow dung in Mubi, Adamawa State, Nigeria were conducted in 2014 and 2015 cropping seasons at the Food and Agricultural Organization/Tree Crops Plantation (FAO/TCP) Farm of the Faculty of Agriculture, Adamawa State University Mubi. A split plot design was adopted for the study with two maize varieties assigned to the main plots and nitrogen with cow dung assigned to the subplots in a factorial combination. Nitrogen rates of 0, 60 and 120 kg N ha-1 and cow dung 0, 1 and 2 ton ha-1 were used. Data were collected on number of cobs per plant, cob length, 100 grain weight and grain yield per hectare. Data collected were subjected to analysis of variance using SAS system for windows 9.2 version 2005 and treatment means were separated using Duncan Multiple Range Test. Result showed that the effect of nitrogen fertilizer on the yield and yield parameters increased significantly with the use of 120 kg N per ha-1 recording the highest for cob length (17.68 cm) 100 grain weighs (32.89 g) and grain yield (5658.3 kg). The control plot produced the least. Application of 2 ton ha-1 cow dung exhibited the highest yield. there was an interaction of variety with nitrogen on cob length and grain yield. Application of 120 kg N ha-1 significantly increased the yield of Quality Protein Maize (QPM) along with 2 ton ha-1 cow dung.
Available:www.iita.org/cms/details/maize project details. aspx? zonoid – 63 and articled 273.
[Accessed on 2 November, 2007. 2007]
Tarfa BD, Kureh I, Kuchinda NC, Shingu A, Omelehin R, Alabi SA, Ado S. Influence of initial soil physio-chemical properties on striga and maize crop parameters under improved management practices. Proceedings of international workshop on maize revolution in West and Central Africa, held at IITA Cotonou, Benin Republic on 14-18 May, 2001; 2003.
Okoruwa AF, Kling JG. Nutrition and quality of maize. IITA Research Guide 33; 1996.
Rasheed M, Hussaini A, Mahmod T. Growth analysis of hybrid maize as influenced by planting techniques and nutrient management. International Journal of Agriculture and Biology. 2003;5(2):169- 171.
Vanlaure B, Achouk H, Diels J, Sanginga N, Mereka R. Nitrogen management in adequate input maize based agriculture in derived savannah benchmark zones of Benin Republic. Plant and Soil. 2001;228.
Giller KE, Cadisch G, Elaliotic C, Adams E, Sakala WD Mafongoya PM. Building soil nitrogen capital in Africa. In: R. J. Buresh P A, Sanchez, Calhoun F. (eds.). Replenishing soil fertility in Africa. Soil science society of America, Madison, Wisconis U.S.A. Proceedings of an international symposium Indianapolis, U.S.A. 6th Nov. 1996. 1997;51:151-192.
De Ridder N, Van Kuelen H. Some aspects of the role of organic matter in sustainable intensified arable farming systems in the West African arid tropics. (SAT) Fertilizer Research. 1990;26:299-310.
Anonymous. House and Garden; 2014.
Available:http://www.house garden.us/articles/theroleofnitogen-in- plants.
Retrieved 25 - April – 2014.
Harris F, Yusuf MA. Manure management by small holder farmers in the Kano close-settled zone, Nigeria. Experimental Agriculture. 2001;37:319-332.
Iwuofor ENO, Aihou K, Jaryum JS, Van Lauwe B, Biets J, Sangiga N, Merckv R. On-farm evaluation of contribution of sole and mixed applications of organic matter and urea to maize grain production in the savannah (eds.). Integrated Plant Nutrient Management in Sub-Saharan Africa. Outlook on Agriculture. 2002;25: 27-36.
Aziz K, Fagal M, Kashif A, Zahoor A, Ahah F, Rizwan U, Faheem AK, Mair JD. Response of fade maize to various levels of nitrogen and phosphorus. American Journal of Plant Science. 2014;5:2323-2329.
Khan HZ, Malik MA, Saleem MF. Effect of rate and source of organic material on the production potential of spring maize (Zea mays L). Pakistan Journal Agricultural Science. 2008;45:40-43.
Ayuba M, Nadeem MA, Sharar MS, Mamoud N. Response of maize (Zea mays L) fodder to different levels of nitrogen and phosphorus. Asia Journal of Plant Science. 2002;352-353.
Ahmed B, Benjamin J. Economic analysis of maize response to nitrogen fertilizer in the Northern Guinea Savanna of Nigeria. Samaru Journal of Agriculture Research. 1997;14:9-14.
Fagam AS, Buba UM, Yahaya IM, Olakande EI. Effect of variety and nitrogen levels on the growth yield and yield components of maize (Zea mays L.) in Bauchi, Nigeria. Proceedings of the 23rd Annual Conference of Farm Management Society of Nigeria. 2009;414-419.
Jama B, Swinkels RA, Bunish RJ. Agronomic and economic evaluation of organic fertilizer. Mineo Ministry of Agriculture. Agricultural Section Development Strategies Nairobi, Kenya; 2000.
Udom NG, Fagam AS, Bello HM. Effect of poultry litter on the yield of two maize varieties in the Nigerian Savanna. Continental Journal of Agronomy. 2007;1: 18-24.
Lekasi JK, Ndung UKW, Kifuko MN. Organic resources management in Kenya. Perspective and Guidelines. Forum for Organic Resources Management and Agricultural Technologies (FORMAT); 2005.
Anonymous. Effects of organic and inorganic nutrient sources on soil mineral nitrogen and maize yield in Western Kenya; 2007.
Ahmed K, Jan, MT, Arif M, Marwat KB, Jan A. Phonology and crop stand of wheat as affected by nitrogen source and tillage practices. Pakistan Journal of Botany. 2009;40:1103-1112.
Mugendi DN, Nair PKR, Mugwe JN, Nei UM, Woomer P. Alley cropping of maize with callianda and lecaena in the soil humid highlands of Kenya. Part I.: Soil fertility changes and maize yield. Agroforestry System. 1999;46:39- 50.