A Multi-Criteria Evaluation of the Effectiveness of Nitrogen and Sulfur Fertilization in Different Cultivars of Winter Rapeseed—Productivity, Economic and Energy Balance

Dariusz Antoni Groth, Mateusz Sokólski and Krzysztof Józef Jankowski
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Dariusz Antoni Groth: Department of Agrotechnology, Agricultural Production Management and Agribusiness, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
Mateusz Sokólski: Department of Agrotechnology, Agricultural Production Management and Agribusiness, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
Krzysztof Józef Jankowski: Department of Agrotechnology, Agricultural Production Management and Agribusiness, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland

Energies, 2020, vol. 13, issue 18, 1-38

Abstract: This article presents the results of a three-year experiment involving a multi-criteria evaluation (productivity, economic and energy balance) of the effectiveness of nitrogen (N) and sulfur (S) fertilization in different cultivars of winter oilseed rape (open-pollinated, semi-dwarf hybrid, long-stem hybrid) grown in north-eastern (NE) Poland. The yield of the semi-dwarf cultivar was 11% lower than the yield of the long-stem hybrid cultivar and 18% higher than the yield of the open-pollinated cultivar. In all cultivars, N fertilization improved yields up to a rate of 180 kg ha −1 and up to a rate of 230 kg ha −1 in years with low precipitation in spring and summer. Seed yield increased in all cultivars in response to S fertilization at 40 kg ha −1 . Higher rates of N fertilizer decreased the content of crude fat and glucosinolates (GLS) and increased the concentration of total protein in all cultivars. Sulfur fertilization increased the content of total protein (in long-stem cultivars) and GLS (in all cultivars). Production costs ranged from €542–624 ha −1 (≤130 kg N ha −1 ) to €619–697 ha −1 (≥180 kg N ha −1 ). The demand for energy in the production of winter rapeseed ranged from 14.5–19.3 GJ ha −1 (≤130 kg N ha −1 ) to 22.4–27.0 GJ ha −1 (≥180 kg N ha −1 ).

Keywords: Brassica napus L.; cultivar; fertilization; biomass yield and quality; profitability; energy balance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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