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Clover content and yield of swards on organic farms - maintenance and estimation Organic Eprints
Nykänen, A.; Leinonen, P.; Väisänen, J..
Grassland production based on legumes is an essential part of the productivity and economy of the organic farming systems. The clover content is an important factor in organic grassland management to optimize the yield, feed value and pre-crop effect of ley. The ley yield and clover content of one-, two- and three-year-old leys were determined on eight organic farms in 1998. Two-year-old leys produced the highest (6500 kg/ha dm) and three-year-old leys (4900 kg/ha dm) the lowest yields, with no significant differences between one- and two-year-old leys. The clover content (20-80 % of dm) diminished to the same extent as the yields. Because the ley samples from the organic farms gave strong evidence of decreasing yield level and clover content in the...
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems.
Ano: 2000 URL: http://orgprints.org/4080/1/4080.pdf
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Terminating ley with mid-summer bare fallow controls Elymus repens Organic Eprints
Kakriainen-Rouhiainen, S.; Väisänen, J.; Vanhala, P.; Lötjönen, T..
The results of this study suggest that mid-summer bare fallow is a relative effective way to reduce the amount of Elymus repens when terminating ley. Early started stubble cultivation is also less sensitive to moist weather, leaving more time for exhausting the rhizome reserves of E. repens. Stubble cultivation and catch crop do increase the costs but not as much as bare fallowing for the whole summer would do. Additionally, mid summer bare fallow allows harvesting one forage yield prior to bare fallowing.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2004 URL: http://orgprints.org/15780/1/Lillehammer.pdf
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