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Winter-Hardy Vs. Freeze-Killed Cover Crop Mixtures Before Maize On An Organic Farm With Reduced Soil Cultivation

Gollner, Gabriele; Fohrafellner, Julia; Wohlmuth, Marie-Luise and Friedel, Jürgen K. (2021) Winter-Hardy Vs. Freeze-Killed Cover Crop Mixtures Before Maize On An Organic Farm With Reduced Soil Cultivation. Paper at: Organic World Congress 2021, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB, Rennes, France, 8 - 10 September, 2021. [Completed]

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Summary

The advantages and disadvantages of a winter-hardy vs. a freeze-killed cover crop (CC) mixture were studied on an organic farm in Lower Austria in two consecutive experiments. Effects on soil inorganic nitrogen contents, weed density and the yield of a following maize crop were assessed. The winter-hardy compared to freeze-killed CC mixture, both consisting of legumes and non-legumes, reduced soil nitrate contents over winter, leading to a reduced nitrate leaching risk, whereas the yield of a following grain maize crop was not significantly affected. Weed density was high in both CC treatments, presumably due to a reduced, non-inverting soil cultivation before maize, and higher in the winter-hardy CC treatment at one of the assessment dates. Combined with an adapted soil cultivation, both winter-hardy and freeze-killed CC mixtures were suitable CCs before grain maize.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:catch crops, grain maize, legumes, non-inverting cultivation, weed density
Subjects: Crop husbandry
Soil
Research affiliation: International Conferences > 2021: Organic World Congress, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB > Ecological approaches to systems' health
Austria
Deposited By: rey, m. frederic
ID Code:42113
Deposited On:07 Sep 2021 13:12
Last Modified:07 Sep 2021 13:12
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:A book of abstracts of papers of the Science Forum at the Organic World Congress 2021, September 8-10, Online and on-site in Rennes, France '6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB' has been published

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