Voltr, Václav; Leština, Jan; Froněk, Pavel - In: Acta Universitatis Bohemiae Meridionales 12 (2009) 2, pp. 99-104
The article is dealing with the relation of the soil value and nitrogen needs as the major intensification factor jointly affecting the quality of the environment. According to the obtained data and knowledge from about 500 surveyed plots, the premises of production function proposals are...