Crop Residue Management Strategies to Reduce Nitrogen Losses during the Winter Leaching Period after Autumn Spinach Harvest
Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
https://doi.org/10.48693/76
https://doi.org/10.48693/76
Titel: | Crop Residue Management Strategies to Reduce Nitrogen Losses during the Winter Leaching Period after Autumn Spinach Harvest |
Sonstige Titel: | Ernterückstandsmanagement nach Herbstspinat zur Minderung von Stickstoffverlusten über die Sickerwasserperiode im Winter |
Autor(en): | Frerichs, Christian Glied-Olsen, Stephan De Neve, Stefaan Broll, Gabriele Daum, Diemo |
ORCID des Autors: | https://orcid.org/0000-0001-8452-4319 https://orcid.org/0000-0002-7557-8355 https://orcid.org/0000-0003-4828-8309 |
Zusammenfassung: | In open-field vegetable production, high quantities of soil mineral nitrogen (Nmin) and N-rich crop residues often remain in the field at harvest. After the harvest of crops in autumn, this N can lead to considerable nitrate (NO3-) losses during the subsequent winter leaching period. In four field trials, different tillage depths (3–4, 10, 30 cm) and dates (early autumn, late autumn, early spring) were investigated to reduce N losses after growing spinach in the autumn. In a further treatment, the nitrification inhibitor 3,4-Dimethylpyrazole phosphate (DMPP) was directly applied to the crop residues. Potential N losses were calculated by a balance sheet approach based on Nmin concentration (0–90 cm), measured N mineralization and N uptake by catch crops. By postponing the tillage date from early to late autumn or spring, resprouting spinach stubbles acted as a catch crop, reducing N losses by up to 61 kg ha-1. However, if the spinach biomass collapsed, the N losses increased by up to 33 kg ha-1 even without tillage. The application of DMPP as well as the tillage depth were less effective. Overall, postponing tillage to spring seems to be the most promising approach for reducing N losses during the off-season. |
Bibliografische Angaben: | Agronomy, 12, 653, MDPI, 2022,1-20 |
URL: | https://doi.org/10.48693/76 https://osnadocs.ub.uni-osnabrueck.de/handle/ds-202203166447 |
Schlagworte: | Spinacia oleracea L.; Nmin residue; Balance sheet; Nitrate leaching; Tillage depth; Tillage date; Nitrification inhibitor; 3,4-Dimethylpyrazole phosphate |
Erscheinungsdatum: | 8-Mär-2022 |
Lizenzbezeichnung: | Attribution 3.0 Germany |
URL der Lizenz: | http://creativecommons.org/licenses/by/3.0/de/ |
Publikationstyp: | Einzelbeitrag in einer wissenschaftlichen Zeitschrift [article] |
Enthalten in den Sammlungen: | FB01 - Hochschulschriften Open-Access-Publikationsfonds |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
Agronomy_12_653_2022_Frerichs_etal.pdf | 7,47 MB | Adobe PDF | Agronomy_12_653_2022_Frerichs_etal.pdf Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons