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    Forage yield and yield components of Sudan grass depending on sowing density
    (2023-05-24) Tomić, Dalibor; Stevović, Vladeta; Marković, I; Marjanović, Miloš; Pavlović, Nenad; Petrović, Mirjana; Zornic, Vladimir; Lazarević, Đorđe; Knežević, Jasmina
    The paper analyzes the influence of different sowing densities on the forage yield and yield components of Sudan grass crops in post-harvest sowing. The field trial was staged in Velika Plana in 2020. The Srem cultivar sudan grass is sown on vertisol type of soil. Sowing was done on July 15. The experiment was set up according to the split-plot system by sowing in two densities, 12 and 25 cm row spacing. The seed amount in sowing was 15 and 30 kg ha-1 respectively. Forage yield components were analyzed in the panicle phenophase of the plants, immediately before mowing. After mowing, the forage and hay yield were determined. A significantly higher internodes number per plant (8.3) and plant height (2.12 m) was recorded in the treatment with a higher crop density compared to the treatment with a lower density (7.7 and 1.93 m respectively). A significantly higher leaves number per plant (3.7) was recorded in the treatment with lower crop density compared to the treatment with higher density (3.5). Sowing density had no significant effect on the panicles number per plant. The mass of the above-ground part of the plant was significantly higher in the treatment with higher seeding density. The forage yield was significantly higher in the treatment with a higher sowing density (51.6 t ha-1) compared to the treatment with a lower density (30.4 t ha1). The dry matter yield ranged from 10,184 t ha-1 at lower sowing density to 18,238 t ha-1 at higher density.