The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality

Autor: Aleksandar Simić, Violeta Mandić, Vesna Krnjaja, Zorica Tomic, Dragana Ružić Muslić, Zorica Bijelić
Rok vydání: 2016
Předmět:
Zdroj: Tarim Bilimleri Dergisi-Journal of Agricultural Sciences
Tarim Bilimleri Dergisi
Popis: The effect of sward structure of the mixtures and nitrogen fertilization on grass-legume silage quality was investigated over two years. The study included Lucerne ( Medicago sativa ) in monoculture and in mixtures with cocksfoot ( Dactylis glomerata ), tall fescue ( Festuca arundinacea ) and sainfoin ( Onobrychis sativa ). Nitrogen fertilizer was applied to the field plots at four different rates: 0, 70, 140 and 210 kg ha -1 . The quality of lucerne silage was inferior to lucerne silage mixed with grasses due to the greater content of ammonia nitrogen (NH 3 -N), acetic (AA) and butyric acids (BA), and reduced content of the lactic acid (LA). Gradual increase of N fertilization significantly has increased the content of NH 3 -N, AA and BA and decreased the content of LA.
Databáze: OpenAIRE