@ARTICLE {KANG:1999, title = {Long-term alley cropping with four hedgerow species on an Alfisol in southwestern Nigeria - effect on crop performance, soil chemical properties and nematode population}, author = {Kang, B. and Caveness, F. E. and Tian, G. and Kolawole, G. }, journal = {Nutrient Cycling in Agroecosystems}, year = {1999}, volume = {54}, number = {2}, pages = {145--155}, issn = {1385-1314}, }