@ARTICLE {KANG:1976a, title = {Iron deficiency problems in upland rice in western Nigeria}, author = {Kang, B. T. and Abifarin, A. O. and Sajjapongse, A. }, journal = {Nigerian Agricultural Journal}, year = {1976}, volume = {13}, pages = {3--15}, note = {IITA Journal Series, No. 55}, }