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Crop Residue Management Strategies to Reduce Nitrogen Losses during the Winter Leaching Period after Autumn Spinach Harvest

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https://doi.org/10.48693/248
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dc.creatorFrerichs, Christian-
dc.creatorGlied-Olsen, Stephan-
dc.creatorDe Neve, Stefaan-
dc.creatorBroll, Gabriele-
dc.creatorDaum, Diemo-
dc.date.accessioned2023-02-10T10:25:57Z-
dc.date.available2023-02-10T10:25:57Z-
dc.date.issued2022-03-08-
dc.identifier.citationFrerichs C, Glied-Olsen S, De Neve S, Broll G, Daum D: Crop Residue Management Strategies to Reduce Nitrogen Losses during the Winter Leaching Period after Autumn Spinach Harvest. Agronomy. 2022; 12(3):653.ger
dc.identifier.urihttps://doi.org/10.48693/248-
dc.identifier.urihttps://osnadocs.ub.uni-osnabrueck.de/handle/ds-202302108232-
dc.description.abstractIn 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.eng
dc.relationhttps://doi.org/10.3390/agronomy12030653ger
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSpinacia oleracea L.eng
dc.subjectNmin residueeng
dc.subjectbalance sheeteng
dc.subjectnitrate leachingeng
dc.subjecttillage deptheng
dc.subjecttillage dateeng
dc.subjectnitrification inhibitoreng
dc.subject3,4-Dimethylpyrazole phosphateeng
dc.subject.ddc550 - Geowissenschaftenger
dc.titleCrop Residue Management Strategies to Reduce Nitrogen Losses during the Winter Leaching Period after Autumn Spinach Harvesteng
dc.typeEinzelbeitrag in einer wissenschaftlichen Zeitschrift [Article]ger
orcid.creatorhttps://orcid.org/0000-0001-8452-4319-
orcid.creatorhttps://orcid.org/0000-0003-4828-8309-
orcid.creatorhttps://orcid.org/0000-0002-7557-8355-
dc.identifier.doi10.3390/agronomy12030653-
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