| Hypertensive disorders and severe obstetric morbidity in the United States EV Kuklina, C Ayala, WM Callaghan Obstetrics & Gynecology 113 (6), 1299-1306, 2009 | 801 | 2009 |
| Meta-analysis of the effects of undersown catch crops on nitrogen leaching loss and grain yields in the Nordic countries E Valkama, R Lemola, H Känkänen, E Turtola Agriculture, Ecosystems & Environment 203, 93-101, 2015 | 216 | 2015 |
| Effects of elevated O3, alone and in combination with elevated CO2, on tree leaf chemistry and insect herbivore performance: a meta‐analysis E Valkama, J Koricheva, E Oksanen Global Change Biology 13 (1), 184-201, 2007 | 211 | 2007 |
| Comparative analysis of leaf trichome structure and composition of epicuticular flavonoids in Finnish birch species E Valkama, JP SALMINEN, J Koricheva, K Pihlaja Annals of Botany 91 (6), 643-655, 2003 | 170 | 2003 |
| 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 | 150 | 2009 |
| The combined effects of enhanced UV-B radiation and selenium on growth, chlorophyll fluorescence and ultrastructure in strawberry (Fragaria× ananassa) and barley (Hordeum … E Valkama, M Kivimäenpää, H Hartikainen, A Wulff Agricultural and forest meteorology 120 (1-4), 267-278, 2003 | 140 | 2003 |
| Changes in leaf trichomes and epicuticular flavonoids during leaf development in three birch taxa E Valkama, JP Salminen, J Koricheva, K Pihlaja Annals of Botany 94 (2), 233-242, 2004 | 132 | 2004 |
| The impact of reed management on wildlife: a meta-analytical review of European studies E Valkama, S Lyytinen, J Koricheva Biological conservation 141 (2), 364-374, 2008 | 117 | 2008 |
| Can conservation agriculture increase soil carbon sequestration? A modelling approach E Valkama, G Kunypiyaeva, R Zhapayev, M Karabayev, E Zhusupbekov, ... Geoderma 369, 114298, 2020 | 97 | 2020 |
| Nitrogen balances and yields of spring cereals as affected by nitrogen fertilization in northern conditions: A meta-analysis E Valkama, T Salo, M Esala, E Turtola Agriculture, ecosystems & environment 164, 1-13, 2013 | 86 | 2013 |
| Leaf surface traits: overlooked determinants of birch resistance to herbivores and foliar micro-fungi? E Valkama, J Koricheva, JP Salminen, M Helander, I Saloniemi, ... Trees 19, 191-197, 2005 | 86 | 2005 |
| A meta‐analysis on nitrogen retention by buffer zones E Valkama, K Usva, M Saarinen, J Uusi‐Kämppä Journal of Environmental Quality 48 (2), 270-279, 2019 | 76 | 2019 |
| Cropland soils in China have a large potential for carbon sequestration based on literature survey F Tao, T Palosuo, E Valkama, R Mäkipää Soil and Tillage Research 186, 70-78, 2019 | 73 | 2019 |
| Yield response models to phosphorus application: a research synthesis of Finnish field trials to optimize fertilizer P use of cereals E Valkama, R Uusitalo, E Turtola Nutrient Cycling in Agroecosystems 91, 1-15, 2011 | 68 | 2011 |
| Defensive Effect of Surface Flavonoid Aglycones of Betula pubescens Leaves Against First Instar Epirrita autumnata Larvae M Lahtinen, JP Salminen, L Kapari, K Lempa, V Ossipov, J Sinkkonen, ... Journal of chemical ecology 30, 2257-2268, 2004 | 54 | 2004 |
| Additive and non‐additive effects of birch genotypic diversity on arthropod herbivory in a long‐term field experiment KE Barton, E Valkama, H Vehviläinen, K Ruohomäki, TM Knight, ... Oikos 124 (6), 697-706, 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 | 42 | 2016 |
| Delayed induced responses of birch glandular trichomes and leaf surface lipophilic compounds to mechanical defoliation and simulated winter browsing E Valkama, J Koricheva, V Ossipov, S Ossipova, E Haukioja, K Pihlaja Oecologia 146, 385-393, 2005 | 40 | 2005 |
| New pedotransfer approaches to predict soil bulk density using WoSIS soil data and environmental covariates in Mediterranean agro-ecosystems C Schillaci, A Perego, E Valkama, M Märker, S Saia, F Veronesi, A Lipani, ... Science of the total environment 780, 146609, 2021 | 38 | 2021 |
| Meta‐analysis of grass ley response to phosphorus fertilization in F inland E Valkama, P Virkajärvi, R Uusitalo, K Ylivainio, E Turtola Grass and Forage Science 71 (1), 36-53, 2016 | 36 | 2016 |
