Abstract
The paper investigated the production properties of three sorghum genotypes: NS-Dzin (forage sorghum), Zora (Sudan grass) and Siloking (interspecies hybrid) in terms of different nitrogen rates used in side dressing in 2009 and 2010. The subject of study was green biomass and dry matter yield in the stages of intensive growth and tasseling. The results have shown that there have been significant fluctuations in production indicators between the genotypes. In the total average, the lowest yield was recorded for the Sudan grass (85.41 t ha-1). Significantly higher yields were recorded for the interspecies hybrid (90.22 t ha-1) and the forage sorghum (93.51 t ha-1). Although the effect of nitrogen rates depended on weather conditions, i.e. rainfall distribution, the optimal nitrogen rate in both years was 180 kg ha-1.
Highlights
IntroductionSorghum species are becoming popular nowadays, especially as fodder crops, because they regenerate well under favourable weather conditions and give more cuts in a production year, depending on water regime (Glamočlija et al, 2010)
Sorghum species are becoming popular nowadays, especially as fodder crops, because they regenerate well under favourable weather conditions and give more cuts in a production year, depending on water regime (Glamočlija et al, 2010).Beside water regime, what greatly affects the productivity and quality of green biomass is crop nutrition
Higher green biomass yield was obtained in all genotypes in the stage of growth, while higher dry matter yield was obtained in the stage of tasseling
Summary
Sorghum species are becoming popular nowadays, especially as fodder crops, because they regenerate well under favourable weather conditions and give more cuts in a production year, depending on water regime (Glamočlija et al, 2010). What greatly affects the productivity and quality of green biomass is crop nutrition. Previous studies on this topic have confirmed the positive effect of side dressing on the quality of forage sorghum. The optimal nitrogen supply makes plants intensively form nitrogen compounds to synthetize storage proteins (Glamočlija et al, 2011). Using nitrogen mineral fertilizers in the right way should enable better and more efficient utilisation of the environment (agroecological and soil conditions) and crop potential of this plant for higher yields of animal feed per unit area. Yield reflects the potential of a plant to accumulate dry matter and its adaptability to different agro-ecological conditions
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
