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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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| Alakukku, Laura; Ristolainen, Antti; Sarikka, Ilkka; Hurme, Timo. |
| Surface water ponding and crop hampering due to soil wetness was monitored in order to evaluate the effects of conservation tillage practices and perennial grass cover on soil infiltrability for five years in situ in gently sloping clayey fields. Thirteen experimental areas, each having three experimental fields, were established in southern Finland. The fields belonged to: autumn mouldboard ploughing (AP), conservation tillage (CT) and perennial grass in the crop rotation (PG). In the third year, direct drilled (DD) fields were established in five areas. Excluding PG, mainly spring cereals were grown in the fields. Location and surface area of ponded water (in the spring and autumn) as well as hampered crop growth (during June-July) were determined in... |
| Tipo: Journal paper |
Palavras-chave: Soil tillage. |
| Ano: 2010 |
URL: http://orgprints.org/18182/1/alakukku.pdf |
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