_____________________________________________________________________________________________________ *Corresponding author: E-mail: nelwaf@gmail.com; International Journal of Plant & Soil Science 13(3): 1-9, 2016; Article no.IJPSS.29901 ISSN: 2320-7035 SCIENCEDOMAIN international www.sciencedomain.org Phosphorus Influence on Plant Tissue Nitrogen Contents and Yield Attributes of Finger Millet Varieties in Semi-arid Region of Kenya Wekha N. Wafula 1,2* , Nicholas K. Korir 1 , Henry F. Ojulong 2 , Moses Siambi 2 and Joseph P. Gweyi-Onyango 1 1 Department of Agricultural Science and Technology, Kenyatta University, P.O.Box 43844-00100, Nairobi, Kenya. 2 International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), P.O.Box 39063-00623, Nairobi, Kenya. Authors’ contributions This work was carried out in collaboration between all authors. Author WNW designed the study, wrote the protocol and wrote the first draft of the manuscript. Authors HFO, MS and JPGO reviewed the study design and all drafts of the manuscript. Author NKK managed the analyses of the study. Author WNW managed the literature searches. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJPSS/2016/29901 Editor(s): (1) Davide Neri, Polytechnic University of Marche - Via Brecce White, Ancona, Italy. (2) Fatemeh Nejatzadeh, Department of Horticulture, Faculty of Agriculture, Khoy Branch, Islamic Azad University, Iran. Reviewers: (1) Abdulmajeed Hamza, University of Ibadan, Ibadan, Nigeria. (2) Anélia Marais, Western Cape Department of Agriculture, South Africa. (3) Nkeki Kamai, University of Maiduguri, Nigeria. Complete Peer review History: http://www.sciencedomain.org/review-history/16885 Received 3 rd October 2016 Accepted 7 th November 2016 Published 11 th November 2016 ABSTRACT The experiment was conducted with the aim of evaluating the effect of differential levels of P on finger millet accumulation of N and yield components. On-station experiments were conducted at the KALRO-Kiboko crops research station in Makueni County during the short and long rains of 2014 and 2015 respectively. There were 4 levels of P (0, 12.5, 25 and 37.5 kg ha -1 P 2 O 5 ) and three varieties (U-15, P-224 and Ekalakala). Ekalakala was the local check while 0 kg/ha P 2 O 5 was the control. The trial was laid out in a randomized complete block design and fitted in factorial arrangement with three replicates given a total of 36 plots. Soil sampling was at a depth of 0-30 cm on all the plots and analytical results showed moderately available P but very low N, organic carbon Original Research Article