Nobile, Cécile ;
Houben, D. ;
Michel, E. ;
Firmin, S. ;
Lambers, Hans ;
Kandeler, Ellen ;
Faucon, M.-P.
Phosphorus-acquisition strategies of canola, wheat and barley in soil amended with sewage sludges
Bitte beziehen Sie sich beim Zitieren dieses Dokumentes immer auf folgende
URN: urn:nbn:de:bsz:100-opus-16779
URL: http://opus.uni-hohenheim.de/volltexte/2020/1677/
pdf-Format:
|
|
|
Gedruckte Ausgabe: |
|
|
Dokument in Google Scholar suchen: |
|
|
Social Media: |
|
|
Export: |
|
|
Abrufstatistik: |
|
|
SWD-Schlagwörter: |
| Phosphor , Gärrest , Boden , Nährstoffaufnahme |
Freie Schlagwörter (Englisch): |
| organic P fertilizer, mineral P fertilizer, carboxylate, phosphatase activity |
Institut: |
| Institut für Bodenkunde und Standortslehre |
DDC-Sachgruppe: |
| Landwirtschaft, Veterinärmedizin |
Dokumentart: |
| ResearchPaper |
Sprache: |
| Englisch |
Erstellungsjahr: |
| 2019 |
Publikationsdatum: |
| 03.02.2020 |
|
Lizenz: |
|
Dieser Inhalt ist unter einer Creative Commons-Lizenz lizenziert.
|
|
Kurzfassung auf Englisch: |
| Crops have different strategies to acquire poorly-available soil phosphorus (P) which are dependent on their architectural, morphological, and physiological root traits, but their capacity to enhance P acquisition varies with the type of fertilizer applied. The objective of this study was to examine how P-acquisition strategies of three main crops are affected by the application of sewage sludges, compared with a mineral P fertilizer. We carried out a 3-months greenhouse pot experiment and compared the response of P-acquisition traits among wheat, barley and canola in a soil amended with three sludges or a mineral P fertilizer. Results showed that the P-acquisition strategy differed among crops. Compared with canola, wheat and barley had a higher specific root length and a greater root carboxylate release and they acquired as much P from sludge as from mineral P. By contrast, canola shoot P content was greater with sludge than with mineral P. This was attributed to a higher rootreleased acid phosphatase activity which promoted the mineralization of sludge-derived P-organic. This study showed that contrasted P-acquisition strategies of crops allows increased use of renewable P resources by optimizing combinations of crop and the type of P fertilizer applied within the cropping system. |
© 1996 - 2016 Universität
Hohenheim. Alle Rechte vorbehalten.
15.04.15 |