Simulation of nitrogen behaviour of soil-plant systems: Papers of a workshop models for the behaviour of nitrogen in soil and uptake by plant. Comparison between different appproaches Wageningen, the Netherl ands January 28-February1, 1980 - Frissel, M. J.; Van Veen, J. A. (Wageningen: Pudoc, Centre for Agricultural Publishing and Documen tation, 1981)
Keywords: Nitrogen -- Fixation -- Congresses