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| Tamm, L.; Smit, A. B.; Hospers, M.; Janssens, S.R.M.; Buurma, J.S.; Molgaard, J.-P.; Laerke, P.E.; Hansen, H. H.; Hermans, A.; Bodker, L.; Bertand, C.; Lambion, J.; Finckh, M.R.; Schüler, Chr.; Lammerts van Bueren, E.; Ruissen, T.; Nielsen, B. J.; Solberg, S.; Speiser, B.; Wolfe, M. S.; Phillips, S.; Wilcoxon, S. J.; Leifert, C.. |
| In Europe, late blight, caused by Phytophthora infestans, is the most devastating disease affecting organic (and conventional) potato production. Under suitable environmental conditions the disease can spread rapidly and it can cause complete crop loss. The extent of damage due to late blight depends on several factors: in organic production systems these factors include climate, choice of variety, soil management and use of crop protection agents such as copper. Therefore, the extent of economic damage varies between European regions. This report presents the results of a detailed survey that has been conducted in 7 European countries in the year 2001: (i) statistics on yields, farm gate prices, and production techniques, (ii) an analysis offarmer... |
| Tipo: Report |
Palavras-chave: Farm economics; Root crops. |
| Ano: 2004 |
URL: http://orgprints.org/25358/1/1340-late-blight.pdf |
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| Haigh, Z. E. L.; Baddeley, J. A.; Boyd, H. E.; Clarke, S.; Jones, H.; Rees, R. M.; Wolfe, M. S.. |
| Data from the second year of experiments at three sites (Wakelyns in SE and Sheepdrove in SW England; and Chapel Farm in SE Scotland) to investigate the effects of interactions among a range of agronomic practices (row spacing, seed density, weeding and undersowing with clover) on winter wheat performance are presented, and compared with first year results. Trends seen at all years and sites indicate that narrow row drill arrangements with high seed rates result in the highest yields. This combination also performed well for emergence and establishment. The effect of drill arrangement was significant (P<0.05) at two of the three experimental sites with establishment of 282 and 232 plants m-2 at Sheepdrove and Chapel farm respectively. There were... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Weed management. |
| Ano: 2008 |
URL: http://orgprints.org/11908/1/Haigh_11908_ed.doc |
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