_____________________________________________________________________________________________________ *Corresponding author: E-mail: b.bofana@gmail.com; Journal of Experimental Agriculture International 36(5): 1-7, 2019; Article no.JEAI.46780 ISSN: 2457-0591 (Past name: American Journal of Experimental Agriculture, Past ISSN: 2231-0606) Evaluation of Grain Yield of Two Varieties of Cowpea (Vigna unguiculata) Subjected to Four Agricultural Practices in Gùrué District, Mozambique Germias Horácio António 1 , José Bofana 1,2* , Francisco Gimo 3 and Sueco Albino Cipriano 1,2 1 Universidade Católica de Moçambique-Faculdade de Agricultura, Cuamba-Niassa, Mozambique. 2 Centro de Investigação Agraria e Desenvolvimento Sustentável, Cuamba-Niassa, Mozambique. 3 National Cooperative Business Association, CLUSA International, Gùrué, Mozambique. Authors’ contributions This work was carried out in collaboration among all authors. Author GHA designed the study and the experimental protocol and conducted the field experiment. Author JB designed the topic, managed the analysis of the study and prepared the manuscript. Author FG assisted in the conduction of the experiment and author SAC contributed to the statistical analyses and revision of the manuscript. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JEAI/2019/v36i530247 Editor(s): (1) Dr. Mohamed Fadel, Professor, Microbial Chemistry, Department Genetic Engineering and Biotechnology, Division National Research Center, Egypt. Reviewers: (1) Raúl Leonel Grijalva-Contreras, Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Mexico. (2) Dr. Virendra Singh, School of Agricultural Science and Engineering, IFTM University, India. Complete Peer review History: http://www.sdiarticle3.com/review-history/46780 Received 25 November 2018 Accepted 03 February 2019 Published 29 May 2019 ABSTRACT To evaluate the effect of four agricultural practices on grain yield, two varieties (IT-16 and IT-18) of cowpeas were tested in the agricultural year 2016/2017 an experimental field where the following agricultural practices were tested: tillage, tillage + mulch, zero tillage and zero tillage + mulch. The randomized complete blocks design, a scheme consisting of two factors: agronomic practices and varieties was used. The plant height, number of pods per plant, weight of 100 seeds and grain yield in kg ha -1 were considered as parameters for analysis. From the results, it was concluded that for the yield of grain of different varieties under study, the variety IT-18 subjected to zero tillage + mulch and the variety IT-16 subjected to tillage had better performance achieving 2600.00 kg ha -1 and 1725.00 kg ha -1 respectively; therefore, recommended to the farmers. Original Research Article