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Effects of extreme weather on yields of major cereal crops in Sweden: Analysis of long-term experiment data
Department of Crop Production Ecology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
Department of Crop Production Ecology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
Linköping University, Department of Mathematics, Mathematical Statistics . Linköping University, Faculty of Science & Engineering. Department of Crop Production Ecology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
Department of Crop Production Ecology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
2015 (English)In: Aspects of Applied Biology, ISSN 0265-1491, Vol. 128, p. 165-172Article in journal (Refereed) Published
Abstract [en]

Weather is one of the key factors controlling crop growth and development. To support decision making, it is essential to know how often extreme weather events have affected crop production and the weather indices that cause them. We used long-term experiment data at four locations in Sweden to evaluate the effects of extreme weather on four major cereal crops: winter wheat, spring wheat, barley and oats. Yield reductions during 1965-2010 differed between crops and locations; with greater variation for spring cereals than winter wheat. For about 2-8 years and 1-2 years, out of the 45 years, yield reductions were 30% and 50%, respectively. For these years the total precipitation during early growth and/or harvest time deviated more than 30% from normal more often, than for years with yield reductions less than 30% (or higher yields). However, such deviations in precipitation were common for the whole 46 year period, and using these weather indices as single predictors of yield reductions would fail in the majority of years.

Place, publisher, year, edition, pages
Warwick, United Kingdom: Association of Applied Biologists / Horticultural Research International , 2015. Vol. 128, p. 165-172
National Category
Other Agricultural Sciences not elsewhere specified
Identifiers
URN: urn:nbn:se:liu:diva-152258OAI: oai:DiVA.org:liu-152258DiVA, id: diva2:1258258
Available from: 2018-10-24 Created: 2018-10-24 Last updated: 2018-11-09Bibliographically approved

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von Rosen, Dietrich

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CiteExportLink to record
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