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Effect of organic crop rotations on long-term development of the weed seedbank

Younie, David; Taylor, Dick; Coutts, Michael; Matheson, Stella; Wright, G and Squire, Geoff (2002) Effect of organic crop rotations on long-term development of the weed seedbank. In: Jane, Powell (Ed.) Research in context. Proceedings of the UK Organic Research 2002 Conference, 26-28 March 2002, Aberystwyth, Organic Centre Wales, Aberystwyth, pp. 215-220.

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Online at: http://www.organic.aber.ac.uk/library/Effect%20of%20crop%20rotations%20on%20the%20weed%20seedbank.pdf


Changes in the weed seedbank were monitored between 1991 and 1998 in two experiments that were established to compare organic crop rotations at two sites in NE Scotland. Two rotations, replicated twice at each site, were compared and all courses of both rotations were present every year. There were relatively minor changes in weed species diversity over time, but major changes in seedbank abundance. Weed seed numbers were relatively low in rotations with a high proportion of grass/clover ley. Differences in level of seedbank across the rotation were relatively predictable at Tulloch but much less so at Woodside where factors such as the effect of the grass/clover ley seemed to play a lesser role. Other factors, such as weather and its influence on the effectiveness of weed control operations, and higher populations of ground-living arthropods, may be affecting the Woodside seedbanks.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Weed Seedbank, Organic Farming Rotations, Grass/Clover Leys
Subjects: Crop husbandry > Weed management
Research affiliation: UK > Scottish Rural Colleges (SRUC - previously SAC)
Related Links:http://www.organic.aber.ac.uk/conference/proceedings.shtml
Deposited By: Buchan, Mrs Elizabeth
ID Code:6171
Deposited On:09 Nov 2005
Last Modified:12 Apr 2010 07:31
Document Language:English
Refereed:Not peer-reviewed
Additional Publishing Information:The paper was presented at the biannual Conference of COR - The Colloquium of Organic Researchers, which took place in March 2002 Aberystwyth, Wales

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