[1]
N. Z. Sosibo, P. Muchaonyerwa, L. Visser, A. Barnard, E. Dube, and T. J. Tsilo, “Soil fertility constraints and yield gaps of irrigation wheat in South Africa”, S. Afr. J. Sci., vol. 113, no. 1/2, p. 9, Jan. 2017, doi: 10.17159/sajs.2017/20160141.