Authors: Nyborg, M Malhi, SS Mumey, G Kryzanowski, L Penny, DC Laverty, DH

Citation: M. Nyborg et al., Economics of nitrogen fertilization of barley and rapeseed as influenced by nitrate-nitrogen level in soil, COMM SOIL S, 30(5-6), 1999, pp. 589-598

Authors: Nyborg, M Malhi, SS Mumey, G Penney, DC Laverty, DH

Citation: M. Nyborg et al., Economics of phosphorus fertilization of barley as influenced by concentration of extractable phosphorus in soil, COMM SOIL S, 30(11-12), 1999, pp. 1789-1795