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Cover cropping with oilseed radish (Raphanus sativus) alone does not enhance deep burrowing earthworm (Lumbricus terrestris) midden counts
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Stroud, Jacqueline L., Irons, Daisy E., Watts, Chris W., Storkey, Jonathan, Morris, Nathan L., Stobart, Ron M., Fielding, Hazel A. and Whitmore, Andrew P. (2017) Cover cropping with oilseed radish (Raphanus sativus) alone does not enhance deep burrowing earthworm (Lumbricus terrestris) midden counts. Soil and Tillage Research, 165 . pp. 11-15. doi:10.1016/j.still.2016.07.013 ISSN 01671987.
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Official URL: http://dx.doi.org/10.1016/j.still.2016.07.013
Abstract
Deep burrowing earthworms are important ecosystem service providers but their populations are reduced by arable cultivations. We need to both better understand the impact of changes in crop management on earthworms and implement practices to enhance their in-field populations. Two current trends in arable cropping are the increased use of non-inversion tillage and over winter cover crops. Lumbricus terrestris abundances were estimated using midden counting on two field trials comparing tillage and cover cropping management practices. The long running (8-year) field trial showed that shallow non-inversion tillage had significantly (p < 0.01) greater L. terrestris abundances at 4.3 middens per m2, in comparison to deep (ca. 20 cm) non-inversion tillage (3 middens per m2) and conventional ploughing (ca. 25 cm) (1.9 middens per m2), indicating that it is inversion rather than the depth of soil disturbance that is detrimental to their abundance. All trials showed that cover cropping with oilseed radish had no significant (p > 0.05) effect on L. terrestris midden counts, either during winter cover cropping or within the arable rotation. Field observations identified that 93% of middens were associated with crop leaves (still attached to the stem) incorporated into the burrow which may be a novel route of agrochemical exposure and needs further investigation.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||
Journal or Publication Title: | Soil and Tillage Research | ||||||||
Publisher: | Elsevier B.V. | ||||||||
ISSN: | 01671987 | ||||||||
Official Date: | January 2017 | ||||||||
Dates: |
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Volume: | 165 | ||||||||
Page Range: | pp. 11-15 | ||||||||
DOI: | 10.1016/j.still.2016.07.013 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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