Effects of nitrogen and harvesting time on chemical composition of biomass of Sudan grass, fodder sorghum, and their hybrid

Dorde GLAMOCLIJA; Snezana JANKOVIC; Sveto RAKIC; Radojka MALETIC; Jela IKANOVIC; Zeljko LAKIC

doi:https://doi.org/10.3906/sag-1202-96

Makale detayları

Effects of nitrogen and harvesting time on chemical composition of biomass of Sudan grass, fodder sorghum, and their hybrid

Yazarlar:

Dorde GLAMOCLIJA | Snezana JANKOVIC | Sveto RAKIC | Radojka MALETIC | Jela IKANOVIC | Zeljko LAKIC

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2011 Vol.35 Issue 2, pp.127-138

Belge Tipi:

Makale

Yayın Tarihi:

1/2011

Belge Dili:

İngilizce

Document ID (Org No.):

2000808143

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

DOI:

https://doi.org/10.3906/sag-1202-96

Anahtar kelimeler:

Özet:

 

The subject of this study is 2-year variability research (2007 and 2008) of the chemical composition of naturally dried biomass samples of 3 different sorghum species, which are widely used in the southeast Balkans. Samples of Sudan grass Zora, fodder sorghum NS-Dzin, and their hybrid Siloking were examined based on the quantity of used nitrogen and the harvest time. Plants were grown in the experimental field of Radmilovac (property of the Faculty of Agriculture in Belgrade) in a randomized block, split-split plot design with 3 replications for 2 years. Naturally dried biomass with the highest amount of total proteins was obtained by mowing during the stem elongation phase (plant height, 100-120 cm). By subsequent mowing in the tasseling phase, the amount of total proteins and mineral substances in the biomass decreased, while the amount of carbohydrates and cellulose significantly increased. The content of lipids in the samples tested differed depending on the cultivar, but this variation was not statistically significant. By increasing the intensity of plant nitrogen nutrition, the total protein content in the tested samples was increased. Due to the large amounts of nonprotein nitrogen compounds, the fraction of digestible proteins did not increase. According to the established chemical composition of the silage sorghum hay, the total digestibility of nutritive components of the tested samples was determined to be satisfactory, above 51%. The highest quality biomass was obtained by mowing the hybrid of sorghum and Sudan grass during the stem elongation phase. The most suitable nitrogen dose of 80-120 kg and harvest during the tasseling period were the best for all 3 cultivars.

 

The subject of this study is 2-year variability research (2007 and 2008) of the chemical composition of naturally dried biomass samples of 3 different sorghum species, which are widely used in the southeast Balkans. Samples of Sudan grass Zora, fodder sorghum NS-Dzin, and their hybrid Siloking were examined based on the quantity of used nitrogen and the harvest time. Plants were grown in the experimental field of Radmilovac (property of the Faculty of Agriculture in Belgrade) in a randomized block, split-split plot design with 3 replications for 2 years. Naturally dried biomass with the highest amount of total proteins was obtained by mowing during the stem elongation phase (plant height, 100-120 cm). By subsequent mowing in the tasseling phase, the amount of total proteins and mineral substances in the biomass decreased, while the amount of carbohydrates and cellulose significantly increased. The content of lipids in the samples tested differed depending on the cultivar, but this variation was not statistically significant. By increasing the intensity of plant nitrogen nutrition, the total protein content in the tested samples was increased. Due to the large amounts of nonprotein nitrogen compounds, the fraction of digestible proteins did not increase. According to the established chemical composition of the silage sorghum hay, the total digestibility of nutritive components of the tested samples was determined to be satisfactory, above 51%. The highest quality biomass was obtained by mowing the hybrid of sorghum and Sudan grass during the stem elongation phase. The most suitable nitrogen dose of 80-120 kg and harvest during the tasseling period were the best for all 3 cultivars.

Makale detayları

Effects of nitrogen and harvesting time on chemical composition of biomass of Sudan grass, fodder sorghum, and their hybrid

Yazarlar:

Dorde GLAMOCLIJA | Snezana JANKOVIC | Sveto RAKIC | Radojka MALETIC | Jela IKANOVIC | Zeljko LAKIC

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2011 Vol.35 Issue 2, pp.127-138

Belge Tipi:

Makale

Yayın Tarihi:

1/2011

Belge Dili:

İngilizce

Document ID (Org No.):

2000808143

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

DOI:

https://doi.org/10.3906/sag-1202-96

Key words: Chemical composition

fodder sorghum

harvest period

nitrogen

Sudan grass

Sayı

Makale detayları

Effects of nitrogen and harvesting time on chemical composition of biomass of Sudan grass, fodder sorghum, and their hybrid

Yazarlar: Dorde GLAMOCLIJA | Snezana JANKOVIC | Sveto RAKIC | Radojka MALETIC | Jela IKANOVIC | Zeljko LAKIC

Yayıncı: TUBITAK

Ana Başlıklar: Tarım

Dergi: Turkish Journal of Agriculture and Forestry 2011 Vol.35 Issue 2, pp.127-138

Belge Tipi: Makale

Yayın Tarihi: 1/2011

Belge Dili: İngilizce

Document ID (Org No.): 2000808143

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

DOI: https://doi.org/10.3906/sag-1202-96

Key words: Chemical composition

fodder sorghum

harvest period

nitrogen

Sudan grass

Sayı

Yazarlar:

Dorde GLAMOCLIJA | Snezana JANKOVIC | Sveto RAKIC | Radojka MALETIC | Jela IKANOVIC | Zeljko LAKIC

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2011 Vol.35 Issue 2, pp.127-138

Belge Tipi:

Makale

Yayın Tarihi:

1/2011

Belge Dili:

İngilizce

Document ID (Org No.):

2000808143

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

DOI:

https://doi.org/10.3906/sag-1202-96