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.

A - Papers appearing in refereed journals

Macholdt, J., Piepho, H-P., Honermeier, B., Perryman, S. A. M., Macdonald, A. J. and Poulton, P. R. 2020. 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 Journal of Agricultural Science. 158 (1-2), pp. 65-79. https://doi.org/10.1017/S0021859620000301

AuthorsMacholdt, J., Piepho, H-P., Honermeier, B., Perryman, S. A. M., Macdonald, A. J. and Poulton, P. R.
Abstract

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 be able to evaluate the effects of differing 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, providing a sufficient number of years for accurate stability parameter estimation. The objective of the current study was to evaluate the effects of cropping sequence (#1: continuous vs rotational), fertilization (#2: mineral vs organic) and straw management in the case of continuous wheat (#3: removal vs 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, United Kingdom) were analysed using a mixed model. Overall, the results showed that rotational cropping combined with supply of sufficient nutrients (N, P, and K) from mineral fertilizers, especially mineral N supply, ensured stable wheat yields whilst reducing the yield risk.

KeywordsYield risk; Inter-annual yield variability; Long-term field experiment; Agronomic management; Cropping sequencing; Mineral fertilizer; Rotational cropping; Straw management
Year of Publication2020
JournalThe Journal of Agricultural Science
Journal citation158 (1-2), pp. 65-79
Digital Object Identifier (DOI)https://doi.org/10.1017/S0021859620000301
Open accessPublished as green open access
FunderBiotechnology and Biological Sciences Research Council
Lawes Agricultural Trust
Funder project or codeThe Rothamsted Long Term Experiments [2017-2022]
Publisher's version
Accepted author manuscript
Output statusPublished
Publication dates
Online31 Mar 2020
Publication process dates
Accepted26 Mar 2020
PublisherCambridge University Press (CUP)
ISSN0021-8596

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