"Valkama, Elena" - Selaus tekijän mukaan Luonnonvarakeskuksen julkaisut
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Phosphorus fertilization and herbage production in Finland
Valkama, Elena; Virkajärvi, Perttu; Uusitalo, Risto; Ylivainio, Kari; Turtola, Eila
Suomen maataloustieteellisen seuran tiedote : 30 (Suomen Maataloustieteellinen Seura, 2014) -
Phosphorus fertilization and herbage production in Finland
Valkama, Elena; Uusitalo, Risto; Ylivainio, Kari; Virkajärvi, Perttu; Turtola, Eila
Suomen maataloustieteellisen seuran tiedote : 31 (Suomen Maataloustieteellinen Seura, 2014) -
Phosphorus fertilization: a meta-analysis of 80 years of research in Finland
Valkama, Elena; Uusitalo, Risto; Ylivainio, Kari; Virkajärvi, Perttu; Turtola, Eila
Agriculture, ecosystems & environment : 3-4 (Elsevier, 2009) -
Phosphorus fertilization: a meta-analysis of 80-year research in Finland
Valkama, Elena; Uusitalo, Risto; Ylivainio, Kari; Virkajärvi, Perttu; Turtola, Eila
NJF Report : 4 (2008) -
Quality assessment of meta-analyses on soil organic carbon
Fohrafellner, Julia; Zechmeister-Boltenstern, Sophie; Murugan, Rajasekaran; Valkama, Elena
SOIL : 1 (Copernicus GmbH, 2023)Soil organic carbon (SOC) plays a vital role in the global carbon cycle and is a potential sink for carbon dioxide. Agricultural management practices can support carbon sequestration and, therefore, offer potential removal ... -
Soil organic carbon under conservation agriculture in Mediterranean and humid subtropical climates: Global meta‐analysis
Tadiello, Tommaso; Acutis, Marco; Perego, Alessia; Schillaci, Calogero; Valkama, Elena
European Journal of Soil Science : 1 (Wiley, 2023)Conservation agriculture (CA) is an agronomic system based on minimum soil disturbance (no-tillage, NT), permanent soil cover, and species diversification. The effects of NT on soil organic carbon (SOC) changes have been ... -
The combined effects of enhanced UV-B radiation and selenium on growth, chlorophyll fluorescence and ultrastructure in strawberry (Fragaria x ananassa) and barley (Hordeum vulgare) treated in the field
Valkama, Elena; Kivimäenpää, Minna; Hartikainen, Helinä; Wulff, Anu
Agricultural and Forest Meteorology (Elsevier Science, 2003) -
The impact of reed management on wildlife: A meta-analytical review of European studies
Valkama, Elena; Lyytinen, Sami; Koricheva, Julia
Biological Conservation (Elsevier Science, 2008) -
Trade‐offs and synergies of soil carbon sequestration: Addressing knowledge gaps related to soil management strategies
Maenhout, Peter; Di Bene, Claudia; Cayuela, Maria Luz; Diaz‐Pines, Eugenio; Govednik, Anton; Keuper, Frida; Mavsar, Sara; Mihelic, Rok; O'Toole, Adam; Schwarzmann, Ana; Suhadolc, Marjetka; Syp, Alina; Valkama, Elena
European journal of soil science : 3 (Wiley-Blackwell, 2024)Soil organic carbon (SOC) sequestration in agricultural soils is an important tool for climate change mitigation within the EU soil strategy for 2030 and can be achieved via the adoption of soil management strategies (SMS). ... -
Typpitaselaskurin käyttöohje
Turtola, Eila; Salo, Tapio; Miettinen, Antti; Jauhiainen, Lauri; Kaseva, Janne; Ketoja, Elise; Valkama, Elena; Savela, Pertti; Peltonen, Sari; Heikkinen, Janne; Isolahti, Mika; Rajala, Ari; Alhainen, Virpi; Heinimäki, Teemu J.
Luonnonvara- ja biotalouden tutkimus : 67/2020 (Luonnonvarakeskus, 2020)Typpitaselaskuri on tarkoitettu työkaluksi, jolla viljelijät ja neuvojat voivat laskea ja tulkita peltolohkojen typpitaseita sekä soveltaa tietoa viljelyn kehittämiseksi ympäristöä ja taloudellista tulosta silmällä pitäen. ... -
Yield response models to phosphorus application: a research synthesis of Finnish field trials to optimize fertilizer P use of cereals
Valkama, Elena; Uusitalo, Risto; Turtola, Eila
Nutrient Cycling in Agroecosystems : 1 (2011) -
Yields, nitrogen balance and leaching of grass leys as effected by nitrogen fertilization
Valkama, Elena; Virkajärvi, Perttu; Salo, Tapio; Kapuinen, Petri; Rankinen, Katri; Turtola, Eila
Suomen maataloustieteellisen seuran tiedote : 32 (Suomen Maataloustieteellinen Seura, 2016)