@ARTICLE {AYENI:1984a, title = {Weed interference in maize, cowpea, maize/cowpea intercrop in a subhumid tropical environment. II. Early growth and nutrient content of Crops and weeds}, author = {Ayeni, A. O. and Akobundu, I. and Duke, W. B. }, journal = {Weed Research}, year = {1984}, volume = {24}, pages = {281--290}, issn = {0043-1737}, }