Hasil Pencarian - Perttu Virkajärvi

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  1. 1
    The effect of cutting times on goat’s rue (Galega orientalis Lam.) leys

    The effect of cutting times on goat’s rue (Galega orientalis Lam.) leys oleh Perttu Virkajärvi, Eero Varis

    Diterbitkan 1991-12-01
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  2. 2
    Predicting herbage mass of Phleum pratense L. pastures with a disk meter

    Predicting herbage mass of Phleum pratense L. pastures with a disk meter oleh Perttu Virkajärvi, Kaisa Matilainen

    Diterbitkan 1995-12-01
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  3. 3
    Effect of nitrogen fertilization, grass species and cultivar on sod production on Valkeasuo peat bog - a case study

    Effect of nitrogen fertilization, grass species and cultivar on sod production on Valkeasuo peat bog - a case study oleh Perttu Virkajärvi, Harri Huhta, Hannu Tuuri

    Diterbitkan 1997-09-01
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  4. 4
    The flows and balances of P, K, Ca and Mg on intensively managed Boreal high input grass and low input grass-clover pastures

    The flows and balances of P, K, Ca and Mg on intensively managed Boreal high input grass and low input grass-clover pastures oleh Kirsi Järvenranta, Perttu Virkajärvi, Helvi Heinonen-Tanski

    Diterbitkan 2014-06-01
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  5. 5
    Dairy cow excreta patches change the boreal grass swards from sink to source of methane

    Dairy cow excreta patches change the boreal grass swards from sink to source of methane oleh Marja Elisa Maljanen, Perttu Virkajärvi, Pertti J. Martikainen

    Diterbitkan 2012-06-01
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  6. 6
    Root growth dynamics and biomass input of four over-wintering herbaceous crops in boreal conditions

    Root growth dynamics and biomass input of four over-wintering herbaceous crops in boreal conditions oleh Laura Alakukku, Perttu Virkajärvi, Sanna Kykkänen, Liisa Pietola

    Diterbitkan 2024-04-01
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  7. 7
    Nitrogen Fertilization of Grass Leys: Yield Production and Risk of Nitrogen Leaching

    Nitrogen Fertilization of Grass Leys: Yield Production and Risk of Nitrogen Leaching oleh Elena Valkama, Katri Rankinen, Perttu Virkajärvi, Tapio Salo, Petri Kapuinen, Eila Turtola

    Diterbitkan 2019-04-01
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  8. 8
    Management practices during the renewal year affect the carbon balance of a boreal legume grassland

    Management practices during the renewal year affect the carbon balance of a boreal legume grassland oleh Yuan Li, Yuan Li, Panu Korhonen, Sanna Kykkänen, Marja Maljanen, Perttu Virkajärvi, Narasinha J. Shurpali

    Diterbitkan 2023-06-01
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  9. 9
    Use, calibration and verification of agroecological models for boreal environments: A review

    Use, calibration and verification of agroecological models for boreal environments: A review oleh Daniel Forster, Samuli Helama, Matthew T. Harrison, Clarence Alan Rotz, Jinfeng Chang, Phillippe Ciais, Elizabeth Pattey, Perttu Virkajärvi, Narasinha Shurpali

    Diterbitkan 2022-03-01
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  10. 10
    Biodiversity in intensive and extensive grasslands in Finland: the impacts of spatial and temporal changes of agricultural land use

    Biodiversity in intensive and extensive grasslands in Finland: the impacts of spatial and temporal changes of agricultural land use oleh Juha Tiainen, Terho Hyvönen, Marleena Hagner, Erja Huusela-Veistola, Pauliina Louhi, Antti Miettinen, Tiina Nieminen, Ansa Palojärvi, Tuomas Seimola, Pauliina Taimisto, Perttu Virkajärvi

    Diterbitkan 2020-05-01
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