Perttu Virkajärvi

Principal Scientist
  • Phone number +358295326641
  • Email address perttu.virkajarvi@luke.fi
  • Address Halolantie 31 A 71750 MAANINKA

Fifteen-year cattle manure application reshapes phoD-and gcd-harboring microbiomes, enhancing vegetable yields

Refereed scientific publications
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2025

GHG balance, its seasonality and response to soil type and management of northern agricultural grasslands: Eddy-covariance flux measurements from three adjacent fields in Finland

Refereed scientific publications
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2025

DNDC modelling of greenhouse gas exchange from a boreal legume grassland under organic and mineral nitrogen management

Refereed scientific publications
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2025

Fates of nutrient elements and heavy metals during thermal conversion of cattle slurry-derived anaerobic digestates

Refereed scientific publications
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2024

Phosphorus - A key element determining nitrous oxide emissions from boreal cultivated peat soil

Refereed scientific publications
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2024

The effect of slurry-based intensive N fertilisation on yield and N leaching in a four-year-old ley

Refereed scientific publications
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2024

Assessing root biomass in timothy and tall fescue via minirhizotron imaging and core sampling

Refereed scientific publications
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2024

Root growth dynamics and biomass input of four over-wintering herbaceous crops in boreal conditions

Refereed scientific publications
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2024

Increasing soil phosphorus content increased spring barley yield while it had no effect on grass yield

Refereed scientific publications
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2024

Long‐term changes in soil phosphorus in response to fertilization and negative phosphorus balance under grass rotation in mineral soils in Nordic conditions

Refereed scientific publications
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2023

Management practices during the renewal year affect the carbon balance of a boreal legume grassland

Refereed scientific publications
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2023

Optical assessment of the spatial variation in total soil carbon using laser-induced breakdown spectroscopy

Refereed scientific publications
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2023

Biomass, soil profile and C concentration of timothy (Phleum pratense) and tall fescue (Lolium arundinaceum) roots

Other publications
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2022

Effect of nitrogen fertilization and cutting height on greenhouse gas exchange on a boreal grassland

Other publications
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2022

Long-term P fertilization experiment on grass – effects on plant and soil

Refereed scientific publications
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2022

Combination of cattle slurry and mineral N fertilizer for efficient grass production in Finland

Refereed scientific publications
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2022

Stress caused by extreme weather conditions reflects on the nutritive value of grass

Other publications
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2022

Net climate impacts of sustainable intensification measures in Boreal crop-livestock system

Refereed scientific publications
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2022

Modelling studies of beef and dairy farming in boreal environments: a review

Refereed scientific publications
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2022

Use, calibration and verification of agroecological models for boreal environments: A review

Refereed scientific publications
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2022

Environmental life cycle assessment of Finnish beef – cradle-to-farm gate analysis of dairy and beef breed beef production

Refereed scientific publications
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2021

CO2 and N2O balance of a legume-based grassland in eastern Finland

Refereed scientific publications
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2020

Nutritional values of leaf and stem fractions in the second growth of timothy and meadow fescue

Refereed scientific publications
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2020

Nitrogen concentrate from slurry digestate reaches mineral nitrogen efficiency as fertiliser for grass

Refereed scientific publications
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2020