Yields, nitrogen balance and leaching of grass leys as effected by nitrogen fertilization - Valkama, Elena; Virkajärvi, Perttu; Salo, Tapio; Kapuinen, Petri; Rankinen, Katri; Turtola, Eila (Suomen Maataloustieteellinen Seura, 2016)
Keywords: nitrogen balance; meta-analysis; COUP model; yields; grasses