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Warmer autumns hardly help the growth of spring crops in Finland

Warmer autumns hardly help the growth of spring crops in Finland

Climate change means the growing seasons are getting longer at both ends. The earlier start of the growing season in spring means that crops can be sown earlier. The longer growing season extending into the autumn, however, does not really help growers of spring crops.

In autumn the lack of light restricts crop growth, but a bigger problem for the crops is the wet weather associated with that season. Rainfall in future is predicted to increase, at least to some extent, and the meagre sunlight of autumn will be unable to dry out the crop sufficiently for threshing to take place, although temperatures will be higher than they are now. Consequently, in the warmer climate of the future, threshing will have to be done more or less at the same time as now.

More information:

Professor Pirjo Peltonen-Sainio, Suomen luonnonvarakeskus,

Peltonen-Sainio, P.,  T. Palosuo, K. Ruosteenoja, L. Jauhiainen & H. Ojanen, 2018: Warming autumns at high latitudes of Europe: an opportunity to lose or gain in cereal production?  Regional Environmental Change, 18, 1453-1465.  DOI: 10.1007/s10113-017-1275-5.

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