Kamoni, P., Mburu, M. and Gachene, C. (2008) “Influence of irrigation and nitrogen fertiliser on maize growth, nitrogen”, East African Agricultural and Forestry Journal, 69(1&2). Available at: https://www.kalro.org/www.eaafj.or.ke/index.php/path/article/view/53 (Accessed: 28January2022).