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Evaluating the effect of nitrogen fertilizer rate and source on the performance of open-pollinated rye (Secale cereale L.) cultivars in contrasting European environments
Journal article   Peer reviewed

Evaluating the effect of nitrogen fertilizer rate and source on the performance of open-pollinated rye (Secale cereale L.) cultivars in contrasting European environments

Ilme Tupits, Ilmar Tamm, Amelia Magistrali, Leonidas Rempelos, Ismail Cakmak, Carlo Leifert, Heinrich Grausgruber, Andrew Wilkinson, Gillian Butler and Paul Bilsborrow
Crop science, Vol.62(2), pp.928-946
03/2022
DOI: https://doi.org/10.1002/csc2.20687

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#2 Zero Hunger
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Source: InCites

Abstract

Agriculture Agronomy Life Sciences & Biomedicine Science & Technology fertilizer sustainable farming practices
Rye (Secale cereale L.) is a minor cereal with potential to support sustainable farming practices. This study evaluated the performance of four old and modern European open-pollinated winter rye cultivars grown with different nitrogen (N) sources (cattle slurry, farmyard manure, biogas digestate, mineral N) at two rates of N 50 and 100 kg ha(-1) in the United Kingdom and Estonia, in the 2014-2015 and 2015-2016 growing seasons. Grain yield in Estonia was higher than the United Kingdom (6.2 vs. 4.8 t ha(-1)), which was attributed to a higher ear density (409.4 vs. 249.7 ears m(-2)) and grain number per ear (50.2 vs. 43.2), although 1,000-grain weight was higher in the United Kingdom. There were clear differences between sites in the response to N source with significant N source x year interactions. Biogas digestate and mineral N produced higher grain yield than farmyard manure and cattle slurry in the United Kingdom, whereas in Estonia cattle slurry had a lower grain yield than the other N sources. Foliar diseases were absent in Estonia and in the United Kingdom, and N source only affected powdery mildew and leaf blotch on Leaf 2. The response of grain quality to N source and variety was consistent across both sites. The modern variety Elias had the highest Hagberg falling number and specific weight but the lowest protein content, whereas the variety Schlagler had the highest protein content but lowest specific weight. The benefits of selecting cultivars for specific environments are shown by the interactions between genotype and environment.

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