Effect of controlled release urea on soil nitrogen mineralization and maize yield in Siaya County, Kenya Author/Editor(s): Karanja, A. N.Sommer, S.Onwonga, R.N.Mochoge, B.Shisanya, C.Date of publication: 2018RUFORUM Working document series Read more about Effect of controlled release urea on soil nitrogen mineralization and maize yield in Siaya County, Kenya
