Fertilizer and intercropped legumes as nitrogen source for Jerusalem artichoke (Helianthus tuberosus L.) tops for bioenergy
| Autor: | Arja Santanen, Frederick L. Stoddard, Pirjo Mäkelä, Kenedy Etone Epie |
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| Přispěvatelé: | Department of Agricultural Sciences, Helsinki Institute of Sustainability Science (HELSUS) |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
legumes Biomass Biology engineering.material 7. Clean energy 01 natural sciences 4111 Agronomy lcsh:Agriculture Crop COMBUSTION synthetic nitrogen fertilizer Bioenergy QUALITY mineral element composition lcsh:Agriculture (General) Nitrogen source Helianthus 2. Zero hunger biomass STEMS Helianthus tuberosus lcsh:S CROP Intercropping Articles 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification lcsh:S1-972 SOIL YIELD 416 Food Science Agronomy INULIN 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Fertilizer intercropping 010606 plant biology & botany Food Science Jerusalem artichoke |
| Zdroj: | Agricultural and Food Science Agricultural and Food Science, Vol 27, Iss 3 (2018) |
| ISSN: | 1795-1895 1459-6067 |
| Popis: | Jerusalem artichoke (Helianthus tuberosus L.) produces substantial shoots not used as food. To test its potential as a sustainable bioenergy crop, we studied the effects of synthetic fertilizer and intercropped legumes as nitrogen (N) sources on the growth, aboveground biomass dry matter yield and energy qualities of this crop. Plant height, leaf area index (LAI), SPAD-value, biomass yield, ash content and mineral element composition were determined. Mean aboveground biomass yields were not significantly affected by N source (legume intercrops and synthetic fertilizer) and ranged from 13 to 17 t ha(-1). Remarkably, plants given no fertilizer yielded equally to plants given 90 N kg ha(-1). These results confirm that Jerusalem artichoke, compared to other energy crops, have less need for N and can potentially be sustained by N fixing legumes in an intercropped system. This could reduce or eliminate production and environmental cost in cultivation of biomass feedstock for energy use. |
| Databáze: | OpenAIRE |
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