Soil nutrient bioavailability

Assessment of soil nutrient balance Roy, R.N [et al.] Alleviating soil fertility constraints to increased crop production in West Africa Charlotte Jhonson Soils Donahue, Roy Luther Nitrogen turnover in the soil-crop system edited by J.J.R. Groot, P. de Willigen, E.L.J. Verberne Simulation of field water use and crop yield Feddes, R. A. Soil salinity edited by H. Frenkel and A. Meiri Solute movement in the soil-root system Nye, Peter Hague Tracer manual on crops and soils a joint undertaking by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations