Nitrogen management and biological nitrogen fixation in sorghum/pigeonpea intercropping on Alfisols of the semi-arid tropics
Citation
Adu-Gyamfi, Joseph J.; Ito, O.; Yoneyama, T. and Katayama, K. 1997. Nitrogen management and biological nitrogen fixation in sorghum/pigeonpea intercropping on alfisols of the semi-arid tropics (reprinted from plant nutrition for sustainable food production and environment, 1997). Soil Science and Plant Nutrition, Volume 43 no. sup1 p. 1061-1066