Defoliation and patchy nutrient return drive grazing effects on plant and soil properties in a dairy cow pasture J Mikola, H Setälä, P Virkajärvi, K Saarijärvi, K Ilmarinen, W Voigt, ... Ecological Monographs 79 (2), 221-244, 2009 | 194 | 2009 |
Phosphorus fertilization: A meta-analysis of 80 years of research in Finland E Valkama, R Uusitalo, K Ylivainio, P Virkajärvi, E Turtola Agriculture, ecosystems & environment 130 (3-4), 75-85, 2009 | 149 | 2009 |
Fluxes of nitrous oxide and nitric oxide from experimental excreta patches in boreal agricultural soil M Maljanen, M Martikkala, HT Koponen, P Virkajärvi, PJ Martikainen Soil Biology and Biochemistry 39 (4), 914-920, 2007 | 110 | 2007 |
How can forage production in Nordic and Mediterranean Europe adapt to the challenges and opportunities arising from climate change? Å Ergon, G Seddaiu, P Korhonen, P Virkajärvi, G Bellocchi, M Jørgensen, ... European Journal of Agronomy 92, 97-106, 2018 | 95 | 2018 |
N2O emissions from boreal grass and grass-clover pasture soils P Virkajärvi, M Maljanen, K Saarijärvi, J Haapala, PJ Martikainen Agriculture, ecosystems & environment 137 (1-2), 59-67, 2010 | 94 | 2010 |
Nitrous oxide production in boreal soils with variable organic matter content at low temperature–snow manipulation experiment M Maljanen, P Virkajärvi, J Hytönen, M Öquist, T Sparrman, ... Biogeosciences 6 (11), 2461-2473, 2009 | 76 | 2009 |
Key challenges and priorities for modelling European grasslands under climate change RP Kipling, P Virkajärvi, L Breitsameter, Y Curnel, T De Swaef, ... Science of the Total Environment 566, 851-864, 2016 | 72 | 2016 |
Neglecting diurnal variations leads to uncertainties in terrestrial nitrous oxide emissions NJ Shurpali, Ü Rannik, S Jokinen, S Lind, C Biasi, I Mammarella, ... Scientific Reports 6 (1), 25739, 2016 | 71 | 2016 |
Modeling European ruminant production systems: Facing the challenges of climate change RP Kipling, A Bannink, G Bellocchi, T Dalgaard, NJ Fox, NJ Hutchings, ... Agricultural Systems 147, 24-37, 2016 | 66 | 2016 |
Harmfulness of weather events and the adaptive capacity of farmers at high latitudes of Europe P Peltonen-Sainio, A Venäläinen, HM Mäkelä, P Pirinen, M Laapas, ... Climate Research 67 (3), 221-240, 2016 | 53 | 2016 |
Nitrogen dynamics of cattle dung and urine patches on intensively managed boreal pasture K Saarijärvi, P Virkajärvi The Journal of agricultural science 147 (4), 479-491, 2009 | 53 | 2009 |
Ammonia volatilization from artificial dung and urine patches measured by the equilibrium concentration technique (JTI method) K Saarijärvi, PK Mattila, P Virkajärvi Atmospheric Environment 40 (27), 5137-5145, 2006 | 53 | 2006 |
Effect of herbage allowance on pasture utilization, regrowth and milk yield of dairy cows in early, mid and late season P Virkajärvi, A Sairanen, JI Nousiainen, H Khalili Animal Feed Science and Technology 97 (1-2), 23-40, 2002 | 53 | 2002 |
Managing resilience of forage crops to climate change through response diversity H Mäkinen, J Kaseva, P Virkajärvi, H Kahiluoto Field Crops Research 183, 23-30, 2015 | 48 | 2015 |
Nitrogen fertilization of grass leys: Yield production and risk of N leaching E Valkama, K Rankinen, P Virkajärvi, T Salo, P Kapuinen, E Turtola Agriculture, Ecosystems & Environment 230, 341-352, 2016 | 44 | 2016 |
Concentrate supplementation responses of the pasture-fed dairy cow A Sairanen, H Khalili, P Virkajärvi Livestock Science 104 (3), 292-302, 2006 | 44 | 2006 |
N and P leaching and microbial contamination from intensively managed pasture and cut sward on sandy soil in Finland K Saarijärvi, P Virkajärvi, H Heinonen-Tanski, I Taipalinen Agriculture, ecosystems & environment 104 (3), 621-630, 2004 | 42 | 2004 |
Shoot growth and phosphorus–nitrogen relationship of grassland swards in response to mineral phosphorus fertilization G Bélanger, N Ziadi, J Lajeunesse, C Jouany, P Virkajarvi, S Sinaj, ... Field Crops Research 204, 31-41, 2017 | 41 | 2017 |
Soil test phosphorus and cumulative phosphorus budgets in fertilized grassland AJ Messiga, N Ziadi, C Jouany, P Virkajärvi, R Suomela, S Sinaj, ... Ambio 44, 252-262, 2015 | 39 | 2015 |
A model of critical phosphorus concentration in the shoot biomass of wheat G Bélanger, N Ziadi, D Pageau, C Grant, M Högnäsbacka, P Virkajärvi, ... Agronomy Journal 107 (3), 963-970, 2015 | 38 | 2015 |