Literaturrecherche

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The nitrogen balance of agriculturally used water catchment areas

Literatur Sauerbeck D, Hersemann H (1990) The nitrogen balance of agriculturally used water catchment areas. In: Merckx R, Vereecken H, Vlassak K (eds) Fertilization and the environment. Leuven: Leuven University Press, pp 225-232

Nitrogen discharge from drains and ditches in an agriculturally used watershed

Literatur Lammel J, Sauerbeck D (1990) Nitrogen discharge from drains and ditches in an agriculturally used watershed. In: Merckx R, Vereecken H, Vlassak K (eds) Fertilization and the environment. Leuven: Leuven University Press, pp 330-339