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Effect of organic crop rotations on long-term development of the weed seedbank Organic Eprints
Younie, David; Taylor, Dick; Coutts, Michael; Matheson, Stella; Wright, G; Squire, Geoff.
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...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2002 URL: http://orgprints.org/6171/1/Younie2002Effect.pdf
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Experiences with designing and managing organic rotation trials Organic Eprints
Taylor, Dick; Younie, David; Coutts, Michael; Matheson, Stella; Mayer, Claus.
This report was presented at the UK Organic Research 2002 Conference. Practical problems encountered in two long-term organic rotation trials at Aberdeen and Elgin are discussed. Compromises have had to be made in designing and managing the trials: how to include livestock and measure output, plot size, marking and fencing, discards and paths, replication, rotation length, randomisation of crop sequence, site uniformity, manoeuvrability of machines, soil compaction and exposure to pest damage.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farming Systems; Crop husbandry.
Ano: 2002 URL: http://orgprints.org/8343/1/taylor_experiences__rotation_trials.pdf
Registros recuperados: 2
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