Zorica BIJELI?, Zorica TOMI?, Violeta MANDI?, Dragana RU?I?-MUSLI?, Aleksandar SIMI?, Vesna KRNJAJA

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

Silaj karışımındaki çim yapısı ve N gübrelemesinin silaj kalitesine etkisi 2 yıllık bir çalışma ile araştırılmıştır. Çalışmada monokültür olarak adi yonca (Medicago sativa) ve karıım olarak da kamışsı yumak (Festuca arundinacea) domuz ayrığı (Dactylis glomerata) ve korunga (Onobrychis sativa) bulundurulmuştur. Azotlu gübre 0, 70, 140 ve 210 kg ha-1dozlarında uygulanmıştır. Yüksek düzeyde amonyak azotu (NH-N), asetik asit (AA), butirik asit (BA) ve daha düşük laktik asit (LA) içeriği nedeniyle adi yonca silajının kalitesi, adi yonca ile çim karışımı silajlarından düşük olmuştur. Artan miktarda N uygulamaları NH3-N, AA ve BA miktarında önemli düzeyde artışa LA miktarında ise önemli düzeyde azalışa neden olmuştur

Çim Yapısı ve N Gübrelemesinin Çim-Baklagil Silaj Kalitesine Etkisi

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 (NH3-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 NH3-N, AA and BA and decreased the content of LA

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