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Vanhala, Petri; Lötjönen, Timo; Hurme, Timo; Salonen, Jukka. |
Perennial sow-thistle (Sonchus arvensis L.) represents an increasing problem in Finland. Options for mechanical and cultural control of S. arvensis were studied in a field experiment on clay soil under organic production. The experiment consisted of different crop sequences: spring cereal (barley, Hordeum vulgare L., in 2001, oats, Avena sativa L., in 2002) with or without inter-row hoeing and/or stubble cultivation, bare fallow, fibre hemp (Cannabis sativa L.), and ley with mowing. In 2003 the entire field was sown to spring wheat. Crop plant and Sonchus shoot density and dry mass prior to cereal harvest and crop yield were assessed. The control effect was rated: bare fallow > ley > cereal with or without inter-row hoeing > poor growth fibre... |
Tipo: Journal paper |
Palavras-chave: Weed management. |
Ano: 2006 |
URL: http://orgprints.org/16758/1/vanhala2.pdf |
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Vanhala, Petri; Lötjönen, Timo. |
Fleråriga rotogräs har ökat i mängd både i konventionell och ekologisk odling i Finland. I synnerhet har åkermolke (Sonchus arvensis) och åkertistel (Cirsium arvense), som båda tål jordbearbetning, förökats. Eftersom de vanligtvis växer från rotutlöpare, har ögräsharvning bara liten effekt på rotogräs. Det behövs antingen kraftigare mekaniska åtgärder eller utnyttjande av grödans konkurrenskraft och andra odlingstekniska metoder. |
Tipo: Journal paper |
Palavras-chave: Weed management. |
Ano: 2004 |
URL: http://orgprints.org/5794/1/fnytt404.pdf |
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Vanhala, Petri; Lötjönen, Timo; Salonen, Jukka. |
In order to study the biology and non-chemical control of perennial weeds, a three-year field experiment was established in 2001 at Vihti, southern Finland. The experiment was placed in a clay soil field under organic production, infested moderately with Cirsium arvense, Elymus repens and Stachys palustris, and heavily with Sonchus arvensis. |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
Ano: 2003 |
URL: http://orgprints.org/11140/1/NJF1.pdf |
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