Spring camelina: Effect of mineral fertilization on the energy efficiency of biomass production

Krzysztof J. Jankowski and Mateusz Sokólski

Energy, 2021, vol. 220, issue C

Abstract: The aim of this study was to determine the effect of nitrogen (0, 40, 80, 120, 160 kg ha−1) and sulfur (0, 15, 30 kg ha−1) fertilization on the energy efficiency ratio of spring camelina produced in north-eastern Poland. The energy inputs in the production of camelina ranged from 5.1 (without nitrogen and sulfur fertilization) to 17.7 GJ ha−1 (160 kg N ha−1 and 30 kg S ha−1). The energy output of camelina produced without nitrogen or sulfur fertilizers was determined at 28.38 (seeds) and 61.53 GJ ha−1 (seeds and straw). High rates of nitrogen and sulfur fertilization increased the energy output of camelina seeds and biomass by up to 186% and 155%, respectively. Nitrogen fertilizer applied at 120 kg ha−1 decreased the energy efficiency ratio by 49% in seeds and by 55% in total biomass. The application of sulfur increased the energy efficiency ratio of seeds by 1–8%, and the energy efficiency ratio of total biomass by 1–5%. Sulfur enhanced the energy efficiency ratio of camelina in production technologies with high rates of nitrogen fertilization.

Keywords: Camelina sativa (L.) Crantz; Nitrogen; Sulfur; Energy balance (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:220:y:2021:i:c:s0360544220328383

DOI: 10.1016/j.energy.2020.119731

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