Elena Valkama

Elena Valkama

Natural Resources Institute, Finland - Helsinki / Finland
Agriculture & Forestry / Agriculture
AD Scientific Index ID: 4982141
person_outline Elena Valkama's MOST POPULAR ARTICLES
1-) Hypertensive disorders and severe obstetric morbidity in the United StatesEV Kuklina, C Ayala, WM CallaghanObstetrics & Gynecology 113 (6), 1299-1306, 20097422009
2-) Meta-analysis of the effects of undersown catch crops on nitrogen leaching loss and grain yields in the Nordic countriesE Valkama, R Lemola, H Känkänen, E TurtolaAgriculture, Ecosystems & Environment 203, 93-101, 20152142015
3-) Effects of elevated O3, alone and in combination with elevated CO2, on tree leaf chemistry and insect herbivore performance: a meta‐analysisE Valkama, J Koricheva, E OksanenGlobal Change Biology 13 (1), 184-201, 20072102007
4-) Comparative analysis of leaf trichome structure and composition of epicuticular flavonoids in Finnish birch speciesE Valkama, JP SALMINEN, J Koricheva, K PihlajaAnnals of Botany 91 (6), 643-655, 20031712003
5-) Phosphorus fertilization: A meta-analysis of 80 years of research in FinlandE Valkama, R Uusitalo, K Ylivainio, P Virkajärvi, E TurtolaAgriculture, ecosystems & environment 130 (3-4), 75-85, 20091532009