Sledovat
Juha Helenius
Juha Helenius
Professor of Agroecology, University of Helsinki
E-mailová adresa ověřena na: helsinki.fi - Domovská stránka
Název
Citace
Citace
Rok
Agroecology: The ecology of food systems
C Francis, G Lieblein, S Gliessman, TA Breland, N Creamer, R Harwood, ...
Journal of sustainable agriculture 22 (3), 99-118, 2003
11232003
Agricultural drainage ditches, their biological importance and functioning
I Herzon, J Helenius
Biological conservation 141 (5), 1171-1183, 2008
3632008
Short-term effects of biochar on soil properties and wheat yield formation with meat bone meal and inorganic fertiliser on a boreal loamy sand
P Tammeorg, A Simojoki, P Mäkelä, FL Stoddard, L Alakukku, J Helenius
Agriculture, Ecosystems & Environment 191, 108-116, 2014
1662014
Biochar application to a fertile sandy clay loam in boreal conditions: effects on soil properties and yield formation of wheat, turnip rape and faba bean
P Tammeorg, A Simojoki, P Mäkelä, FL Stoddard, L Alakukku, J Helenius
Plant and soil 374 (1), 89-107, 2014
1522014
Revisiting the species–area relationship in a semi-natural habitat: floral richness in agricultural buffer zones in Finland
M Ma, S Tarmi, J Helenius
Agriculture, ecosystems & environment 89 (1-2), 137-148, 2002
1242002
Density estimation for invertebrate predators in agroecosystems
KD Sunderland, GR De Snoo, A Dinter, T Hance, J Helenius, P Jepson, ...
Arthropod natural enemies in arable land 1, 133, 1995
1201995
Dietary choices and greenhouse gas emissions–assessment of impact of vegetarian and organic options at national scale
H Risku-Norja, S Kurppa, J Helenius
Progress in Industrial Ecology, an International Journal 6 (4), 340-354, 2009
972009
Multi‐species richness of boreal agricultural landscapes: effects of climate, biotope, soil and geographical location
S Kivinen, M Luoto, M Kuussaari, J Helenius
Journal of Biogeography 33 (5), 862-875, 2006
902006
Do inspection practices in organic agriculture serve organic values? A case study from Finland
L Seppänen, J Helenius
Agriculture and human values 21 (1), 1-13, 2004
852004
Effects of biochar on earthworms in arable soil: avoidance test and field trial in boreal loamy sand
P Tammeorg, T Parviainen, V Nuutinen, A Simojoki, E Vaara, J Helenius
Agriculture, Ecosystems & Environment 191, 150-157, 2014
782014
Impacts and adaptation options of climate change on ecosystem services in Finland: a model based study
M Forsius, S Anttila, L Arvola, I Bergström, H Hakola, HI Heikkinen, ...
Current Opinion in Environmental Sustainability 5 (1), 26-40, 2013
602013
Value of semi-natural areas as biodiversity indicators in agricultural landscapes
R Hietala-Koivu, T Järvenpää, J Helenius
Agriculture, Ecosystems & Environment 101 (1), 9-19, 2004
592004
Measures of the EU Agri-Environmental Protection Scheme (GAEPS) and their impacts on the visual acceptability of Finnish agricultural landscapes
L Tahvanainen, M Ihalainen, R Hietala-Koivu, O Kolehmainen, ...
Journal of environmental management 66 (3), 213-227, 2002
592002
Localization of primary food production in Finland: production potential and environmental impacts of food consumption patterns
H Risku-Norja, R Hietala, H Virtanen, H Ketomäki, J Helenius
Agricultural and Food Science 17 (2), 127-145, 2008
572008
Meat bone meal as fertiliser for barley and oat
L Chen, J Kivelä, J Helenius, A Kangas
MTT Agrifood Research Finland, 2011
552011
Correlations in species richness between taxa depend on habitat, scale and landscape context
J Ekroos, M Kuussaari, J Tiainen, J Heliölä, T Seimola, J Helenius
Ecological Indicators 34, 528-535, 2013
532013
Challenges in designing ecological agriculture education: A Nordic perspective on change
CA Francis, G Lieblein, J Helenius, L Salomonsson, H Olsen, J Porter
American Journal of Alternative Agriculture 16 (2), 89-95, 2001
532001
Effect of epigeal predators on infestation by the aphid Rhopalosiphum padi and on grain yield of oats in monocrops and mixed intercrops
J Helenius
Entomologia experimentalis et applicata 54 (3), 225-236, 1990
511990
Yield advantage and competition in intercropped oats (Avena sativa L.) and faba bean (Vicia faba L.): Application of the hyperbolic yield-density model
J Helenius, K Jokinen
Field Crops Research 37 (2), 85-94, 1994
501994
Toxicity of plant extracts to three storage beetles (Coleoptera)
BT Niber, J Helenius, AL Varis
Journal of Applied Entomology 113 (1‐5), 202-208, 1992
481992
Systém momentálně nemůže danou operaci provést. Zkuste to znovu později.
Články 1–20