ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785


Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Adrian Gheorghe BĂȘA , Viorel ION , Marin DUMBRAVĂ , Nicoleta ION , Lenuța Iuliana EPURE

Sorghum (Sorghum bicolor (L.) Moench) is among the most important energy crops used for biomass production as substrate for obtaining biogas which is converted by combustion into power energy and heat. The importance of sorghum as an energy crop is given by some advantages such as the drought tolerance, the great potential to produce biomass even under less favorable growing conditions, and the easiness to be cultivated. For sorghum energy crops aimed to produce biomass, already there are created specialized hybrids for this purpose, but there is necessary also a specific crop technology according to this purpose. Among the important elements of the crop technology there are counted the plant density. From this perspective, the aim of this paper is to present the biomass yields of two sorghum hybrids at different plant densities. In view to accomplish this aim, a field experiment was performed in the specific conditions from South Romania and under the climatic conditions of 2016, with two sorghum hybrids (BMR Gold X and EUG 542 F) sown under three plant densities: 22 plants.m-2, 28 plants.m-2, and 34 plants.m-2. The biomass determinations were performed in the early dough – dough plant growth stage. For each experimental variant, there was calculated the fresh and dry biomass yield which was expressed in tons.ha-1.

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