Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.3389/fpls.2024.1346729 |
Lizenz  |
|
| Titel (primär) | Two-way NxP fertilisation experiment on barley (Hordeum vulgare) reveals shift from additive to synergistic N-P interactions at critical phosphorus fertilisation level |
| Autor | Clayton, J.; Lemanski, K.; Solbach, M.D.; Temperton, V.M.; Bonkowski, M. |
| Quelle | Frontiers in Plant Science |
| Erscheinungsjahr | 2024 |
| Department | BOSYS |
| Band/Volume | 15 |
| Seite von | art. 1346729 |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Supplements | https://www.frontiersin.org/api/v3/articles/1346729/file/1346729_supplementary-materials_datasheets_1_pdf/1?isPublishedV2=false |
| Keywords | synergistic effects; N-P interactions; barley; nutrient limitation; shoot:root ratio; fertilisation; stoichiometry; critical P level |
| Abstract | In a pot experiment, we investigated synergistic interaction of N and P fertilisation on barley biomass (Hordeum vulgare) on both shoot and root level with the aim to determine whether N-P interaction would be the same for all levels of N and P fertilisation. We further aimed to determine whether there was a critical level of N and/or P fertilisation rate, above which, a decrease in resource allocation to roots (as nutrient availability increased) could be demonstrated. Barley plants were grown from seed on a nutrient poor substrate and subjected to a two-way NxP fertilisation gradient using a modified Hoagland fertilisation solution. We observed N-P interactions in shoot and root biomass, and N and P use-efficiencies. A synergistic response in biomass was observed only above a critical level of P fertilisation when P was not limiting growth. Furthermore, we found that the same incremental increase in N:P ratio of applied fertiliser elicited different responses in shoot and root biomass depending on P treatment and concluded that barley plants were less able to cope with increasing stoichiometric imbalance when P was deficient. We provide, for the first time, stoichiometric evidence that critical levels for synergistic interactions between N-P may exist in crop plants. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28841 |
| Clayton, J., Lemanski, K., Solbach, M.D., Temperton, V.M., Bonkowski, M. (2024): Two-way NxP fertilisation experiment on barley (Hordeum vulgare) reveals shift from additive to synergistic N-P interactions at critical phosphorus fertilisation level Front. Plant Sci. 15 , art. 1346729 10.3389/fpls.2024.1346729 |
|