Study Concerning Nitrogen Balance in Some Fodder Systems II: The Silo Maize Based Fodder System.

Nitrogen balance in silo maize based fodder systems that also contain some species of fodder legumes (red clover and winter vetch) is positive and it ensures some nitrogen amounts remained in the soil for the crops to follow in the crop rotation. Among the studied fodder systems, we noticed the fodder system Wf (winter fodder) → Sm (silo maize) → Wf (winter fodder) → Sm (silo maize) cultivated successively for two years; in this fodder system, we obtained an extra 40 kg/ha nitrogen in the variant not fertilised with nitrogen and 167 kg/ha in the variant fertilised with nitrogen. [ABSTRACT FROM AUTHOR]