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Grain legume yields are as stable as other spring crops in long-term experiments across northern Europe.
Agronomy for Sustainable Development ( IF 7.3 ) Pub Date : 2018-11-02 , DOI: 10.1007/s13593-018-0541-3
Moritz Reckling 1, 2 , Thomas F Döring 3, 4 , Göran Bergkvist 2 , Frederick L Stoddard 5 , Christine A Watson 2, 6 , Sylvia Seddig 7 , Frank-M Chmielewski 3 , Johann Bachinger 1
Affiliation  

Grain legumes produce high-quality protein for food and feed, and potentially contribute to sustainable cropping systems, but they are grown on only 1.5% of European arable land. Low temporal yield stability is one of the reasons held responsible for the low proportion of grain legumes, without sufficient quantitative evidence. The objective of this study was to compare the yield stability of grain legumes with other crop species in a northern European context and accounting for the effects of scale in the analysis and the data. To avoid aggregation biases in the yield data, we used data from long-term field experiments. The experiments included grain legumes (lupin, field pea, and faba bean), other broad-leaved crops, spring, and winter cereals. Experiments were conducted in the UK, Sweden, and Germany. To compare yield stability between grain legumes and other crops, we used a scale-adjusted yield stability indicator that accounts for the yield differences between crops following Taylor’s Power Law. Here, we show that temporal yield instability of grain legumes (30%) was higher than that of autumn-sown cereals (19%), but lower than that of other spring-sown broad-leaved crops (35%), and only slightly greater than spring-sown cereals (27%). With the scale-adjusted yield stability indicator, we estimated 21% higher yield stability for grain legumes compared to a standard stability measure. These novel findings demonstrate that grain legume yields are as reliable as those of other spring-sown crops in major production systems of northern Europe, which could influence the current negative perception on grain legume cultivation. Initiatives are still needed to improve the crops agronomy to provide higher and more stable yields in future.

中文翻译:

在整个北欧的长期试验中,豆类谷物的产量与其他春季作物一样稳定。

豆类谷物生产用于食品和饲料的高质量蛋白质,并有可能促进可持续的种植系统,但它们仅在1.5%的欧洲耕地上生长。暂时的产量稳定性差是造成谷物豆类比例低的原因之一,没有足够的定量证据。这项研究的目的是在北欧背景下比较豆类和其他作物品种的产量稳定性,并在分析和数据中考虑规模的影响。为了避免产量数据中的聚合偏差,我们使用了长期田间试验的数据。实验包括豆类谷物(羽扇豆,豌豆和蚕豆),其他阔叶作物,春季和冬季谷物。在英国,瑞典和德国进行了实验。为了比较豆类和其他农作物之间的产量稳定性,我们使用了按比例调整的产量稳定性指标,该指标说明了遵循泰勒幂定律的农作物之间的产量差异。在这里,我们表明,豆类作物的暂时产量不稳定性(30%)高于秋季播种的谷物(19%),但低于其他春季播种的阔叶作物(35%),并且仅略微高于春季播种的谷物(27%)。通过规模调整的产量稳定性指标,我们估计谷物豆类的产量稳定性比标准稳定性指标高21%。这些新颖的发现表明,豆类谷物的产量与北欧主要生产系统中其他春季播种的作物一样可靠,这可能会影响当前对豆类作物种植的负面看法。
更新日期:2018-11-02
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