Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Hannu Ojanen"'
Autor:
Jukka Salonen, Heikki Jalli, Anne Muotila, Mari Niemi, Hannu Ojanen, Pentti Ruuttunen, Terho Hyvönen
Publikováno v:
Agricultural and Food Science, Vol 32, Iss 2 (2023)
Regular weed surveys provide information on changes in weed communities. The composition of weed flora in spring cereal fields was investigated in southern and central Finland during 2020–2022. The survey was conducted in 16 regions, 226 farms and
Externí odkaz:
https://doaj.org/article/a09cdd2d33f24295948f684e93aa4d66
Publikováno v:
Carbon Management, Vol 10, Iss 2, Pp 115-126 (2019)
Cultivated organic soils can be a major source of GHG emissions in countries with high coverage of peat soils. Targeting mitigation measures based on mapping of cultivated organic soils would reduce these emissions and increase sustainability of agri
Externí odkaz:
https://doaj.org/article/bb6efc7664914da4821062b9aa67f31f
Autor:
Pirjo Peltonen-Sainio, Pentti Pirinen, Hanna M Mäkelä, Otto Hyvärinen, Erja Huusela-Veistola, Hannu Ojanen, Ari Venäläinen
Publikováno v:
Agricultural and Food Science, Vol 25, Iss 1 (2016)
Variation in temperature challenges crop production and animal farming. Elevated temperatures are often harmful, though may also open opportunities at high latitudes. Impacts depend on the vulnerability of the object, production system and their resi
Externí odkaz:
https://doaj.org/article/d11ffdfe9d124f07b70c35e1578c3e28
Publikováno v:
Agricultural and Food Science, Vol 25, Iss 1 (2016)
There is great temporal and spatial variation in precipitation in Finland. Both drought episodes and repeated, abundant rains may interfere with crop growth, yield and quality formation, and many agricultural operations (such as tillage, sowing, crop
Externí odkaz:
https://doaj.org/article/41ed92b3148f44b5aabc62892b5cada5
Autor:
Pirjo Peltonen-Sainio, Pentti Pirinen, Mikko Laapas, Hanna M. Mäkelä, Hannu Ojanen, Ari Venäläinen
Publikováno v:
Agricultural and Food Science, Vol 25, Iss 1 (2016)
In the boreal zone of Europe, differences between the four seasons are considerable. Also, the within-season variation in climatic conditions is substantial. This has many impacts on agriculture that are exceptional when compared to any other environ
Externí odkaz:
https://doaj.org/article/7249dbb5d57e4511b35013b3ec07479f
Autor:
Katri Rankinen, Pirjo Peltonen-Sainio, Kirsti Granlund, Hannu Ojanen, Mikko Laapas, Kaija Hakala, Kalle Sippel, Juha Helenius, Martin Forsius
Publikováno v:
Agricultural and Food Science, Vol 22, Iss 3 (2013)
Prolongation of the growing season due to a warming climate could represent new opportunities for northern agriculture. Climatic and biotic constraints may challenge future crop production. The objective of this study was to speculate how a range of
Externí odkaz:
https://doaj.org/article/06fa7636ebee48be81b1e1d667581969
Publikováno v:
Carbon Management. 10:115-126
Cultivated organic soils can be a major source of GHG emissions in countries with high coverage of peat soils. Targeting mitigation measures based on mapping of cultivated organic soils would reduc...
Publikováno v:
Regional Environmental Change. 18:1453-1465
Climate change is projected to prolong Finland’s short growing season at both ends though warming autumns are not expected to benefit arable crops such as cereals, in contrast to warming springs. To test the veracity of this, ex-post and ex-ante ap
Autor:
Erja Huusela-Veistola, Hannu Ojanen, Hanna M. Mäkelä, Mikko Laapas, Perttu Virkajärvi, Kaija Hakala, Panu Korhonen, Marja Jalli, Pirjo Peltonen-Sainio, Timo Kaukoranta, Pentti Pirinen, Lauri Jauhiainen, Ari Venäläinen, Janne Kaseva
Publikováno v:
Climate Research. 67:221-240
Autor:
Pirjo Peltonen-Sainio, Juha Helenius, Katri Rankinen, Mikko Laapas, Hannu Ojanen, Kaija Hakala, Kalle Sippel, Martin Forsius, Kirsti Granlund
Publikováno v:
Agricultural and Food Science
Scopus-Elsevier
Agricultural and Food Science, Vol 22, Iss 3 (2013)
University of Helsinki
Scopus-Elsevier
Agricultural and Food Science, Vol 22, Iss 3 (2013)
University of Helsinki
Prolongation of the growing season due to a warming climate could represent new opportunities for northern agriculture. Climatic and biotic constraints may challenge future crop production. The objective of this study was to speculate how a range of