Seed yield, quality and correlation of tall fescue from different interrow spacing and application of mineral fertilizer | Prinos, kvalitet i korelativna međuzavisnost semena visokog vijuka iz različitog međurednog rastojanja i primene mineralnih hraniva
2009
Stanisavljević, R., Institut za krmno bilje, Kruševac (Serbia) | Đokić, D., Institut za krmno bilje, Kruševac (Serbia) | Milenković, J., Institut za krmno bilje, Kruševac (Serbia) | Terzić, D., Institut za krmno bilje, Kruševac (Serbia) | Đukanović, L., Laboratorija za kontrolu semena Sirmium-Seme, Sremska Mitrovica (Serbia) | Stevović, V., Agronomski fakultet, Čačak (Serbia) | Beković, D., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
The study of tall fescua seed yield from different interrow spacing and application of fertilizer were conducted in agroecological conditions on vertisol of Serbia. The two-year period results were analyzed. For two interrow spacing used (12.5 cm with 30 kg/ha the sowing amount of seeds, and 25 cm with 15 kg/ha sowing amount of seeds), and quantity and time of mineral fertilizer applied (control-without application of mineral fertilizer; N60:P60:K60 kg/ha applied in the fall, N90:P60:K60 kg/ha applied in the fall, N60:P60:K60 kg/ha applied in early spring; N90:P60:K60 kg/ha applied in early spring), an average seed yield of tall fescue was 579 kg/ha. The highest yield was achieved using 25 cm of interrow spacing and the application of N90:P60:K60 fertilizer in the early spring (632 kg/ha). The lowest yield was achieved using 12.5 cm of interrow spacing and without mineral fertilizer application (381 kg/ha). In contrast to highly significant impact on tall fescue seed yield examined, interrow spacing and the application of mineral fertilizer did not show significant effect on germination energy and total germinability. Although the impact of interrow spacing on the 1000 seeds mass appeared significant, application of mineral fertilizer did not. Seed yield showed a very strong positive correlation with the 1000 seeds mass (r=0.785), as well as strong and also positive correlation with germination energy and germinability (r=0.752 and r=0.611, respectively).
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