The performance of perennial ryegrass in binary mixtures with lucerne and red clover under n fertilization
Proizvodni rezultati višegodišnjeg ljulja u binarnim smešama sa lucerkom i crvenom detelinom u uslovima đubrenja azotom

2017
Authors
Bijelić, ZoricaMandić, Violeta

Krnjaja, Vesna

Ružić-Muslić, Dragana

Simić, Aleksandar

Cekić, Bogdan

Caro Petrović, Violeta

Article (Published version)
Metadata
Show full item recordAbstract
Perennial ryegrass is a very important and widespread grass species used for livestock nutrition, in particularly ruminants. As a species that is most commonly used on grasslands, it is grown in mixtures with other types of grasses and legumes. The objective of the research was to investigate the performance of perennial ryegrass at various proportions in the mixtures with red clover and lucerne, and how different levels of N fertilization affect its competitiveness. Ryegrass achieved the highest yield with lucerne at seeding rate 50:50 and with red clover at seeding rate 70:30. Relative grass yield (RYg) of mixtures ranged from 1.01 to 1.55 respectively, which means that ryegrass in mixtures achieved 0.1-55% greater yield than pure ryegrass crop. N fertilization increased DMY and RYg, leaf : steam ratio, specific leaf area (SLA), leaf area ratio (LAR) and leaf area index (LAI) in both years thus increasing the competitive capability of perennial ryegrass.
Višegodišnji ljulj je veoma važna i rasprostranjena vrsta trava koja se koristi za ishranu stoke, naročito preživara. Kao vrsta koja se najčešće koristi na travnjacima, ona se uzgaja u mešavinama sa drugim vrstama trava i mahunarki. Cilj istraživanja bio je istražiti proizvodne rezultate višegodišnjeg ljulja u različitim proporcijama u smešama sa crvenom detelinom i lucerkom, kao i kako različiti nivoi N đubrenja utiču na njegovu konkurentnost. Ljulj je postigao najveći prinos sa lucerkom pri razmerisetvenoj of 50:50 i sa crvenom detelinom, 70:30. Relativni prinos trava (RYg) smeša se kretao od 1,01 do 1,55, što znači da je ljulj u smešama postigao 0.1-55% veći prinos od čistog useva. N đubrenje povećalo je DMY i RYIg, odnos lista i stabljike, specifičnu lisnu površinu (SLA), odnos lisnih površina (LAR) i indeks lisnih površina (LAI) u obe godine, čime se povećava konkurentna sposobnost višegodišnjeg ljulja.
Keywords:
perennial ryegrass / red clover / lucerne / performance / competitiveness / višegodišnji ljulj / crvena detelina / lucerka / performanse / konkurentnostSource:
Biotechnology in Animal Husbandry, 2017, 33, 3, 349-360Publisher:
- Institute for Animal Husbandry, Belgrade