The effects of cropping sequence, fertilization and straw management on the yield stability of winter wheat (1986–2017) in the Broadbalk Wheat Experiment, Rothamsted, UK

The development of resilient cropping systems with high yield stability is becoming increasingly important due to future climatic and agronomic challenges. Consequently, it is essential to compare the effects of different agronomic management practices, such as cropping sequences and nutrient supply...

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Bibliographic Details
Published in:The Journal of agricultural science 2020-03, Vol.158 (1-2), p.65-79
Main Authors: Macholdt, J., Piepho, H.-P., Honermeier, B., Perryman, S., Macdonald, A., Poulton, P.
Format: Article
Language:English
Subjects:
Agricultural practices
Agricultural production
Agronomy
Archives & records
Corn
Crop resilience
Crop rotation
Crop yield
Cropping sequence
Cropping systems
Crops and Soils Research Paper
Datasets
Experiments
Fertilization
Fertilizers
Management
Manures
Organic fertilizers
Organic wastes
Parameter estimation
Potassium
Rain
Stability
Straw
Triticum aestivum
Wheat
Winter wheat
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Summary:The development of resilient cropping systems with high yield stability is becoming increasingly important due to future climatic and agronomic challenges. Consequently, it is essential to compare the effects of different agronomic management practices, such as cropping sequences and nutrient supply, on the stability of crop yields. Long-term experiments are a valuable resource for investigating these effects, as they provide enough time to accurately estimate stability parameters. The objective of the current study was to compare the effects of different cropping sequencing (#1: continuous v. rotational), fertilization (#2: mineral v. organic) and straw management techniques (in the case of continuous wheat; #3: removal v. incorporation) on the yield stability of winter wheat; yield risk (the probability of yield falling below a threshold yield level) and inter-annual yield variability were used as stability indicators of the effects. Long-term yield data from the Broadbalk Wheat Experiment (Rothamsted, UK) were analysed using a mixed model. Overall, the results showed that rotational cropping combined with sufficient mineral N fertilizer, with or without organic manure, ensured stable wheat yields while reducing yield risk. In contrast, higher yield risks and inter-annual yield variabilities were found in continuous wheat sections with less mineral N fertilizer or with organic manure only.
ISSN:0021-8596
1469-5146
DOI:10.1017/S0021859620000301