Modelling growth and nitrogen balance of barley under ambient and future conditions
According to current scenarios, atmospheric CO2- concentration ([CO2]) and average air temperature will rise in the future. The predicted longer growing season in Finland would imply that more productive cultivars and even new crop species could be grown. Moreover, higher [CO2] is also likely to inc...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Scientific Agricultural Society of Finland
2008-12-01
|
| Series: | Agricultural and Food Science |
| Online Access: | https://journal.fi/afs/article/view/5524 |
| _version_ | 1819037934167261184 |
|---|---|
| author | J. KLEEMOLA T. KARVONEN |
| author_facet | J. KLEEMOLA T. KARVONEN |
| author_sort | J. KLEEMOLA |
| collection | DOAJ |
| description | According to current scenarios, atmospheric CO2- concentration ([CO2]) and average air temperature will rise in the future. The predicted longer growing season in Finland would imply that more productive cultivars and even new crop species could be grown. Moreover, higher [CO2] is also likely to increase dry matter production of crops. This study analyzed the growth of spring barley (Hordeum vulgare L.) under ambient and suggested future conditions, and its response to N fertilization. Model simulations of soil temperature and of snow accumulation and melting were also studied. The calibration and validation results showed that the model performed well in simulating snow dynamics, soil temperature, the growth of barley, and the response of crop growth to N fertilization under present conditions. According to the simulation runs, if a cultivar was adapted to the length of the growing period, the increase in dry matter production was 23% in a low estimate scenario of climate change, and 56% in a high estimate scenario under a high level of nitrogen fertilization. The simulation study showed that the shoot dry weight increased by 43%, on average, under high N fertilization (150-200 kg N/ha), but by less (20%) under a low level of N (25-50 kg N/ha) when the conditions under a central scenario for the year 2050 were compared with the present ones.; |
| first_indexed | 2024-12-21T08:29:18Z |
| format | Article |
| id | doaj.art-619b01d818564b688a2933c177d0db9f |
| institution | Directory Open Access Journal |
| issn | 1459-6067 1795-1895 |
| language | English |
| last_indexed | 2024-12-21T08:29:18Z |
| publishDate | 2008-12-01 |
| publisher | Scientific Agricultural Society of Finland |
| record_format | Article |
| series | Agricultural and Food Science |
| spelling | doaj.art-619b01d818564b688a2933c177d0db9f2022-12-21T19:10:15ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18952008-12-0153Modelling growth and nitrogen balance of barley under ambient and future conditionsJ. KLEEMOLAT. KARVONENAccording to current scenarios, atmospheric CO2- concentration ([CO2]) and average air temperature will rise in the future. The predicted longer growing season in Finland would imply that more productive cultivars and even new crop species could be grown. Moreover, higher [CO2] is also likely to increase dry matter production of crops. This study analyzed the growth of spring barley (Hordeum vulgare L.) under ambient and suggested future conditions, and its response to N fertilization. Model simulations of soil temperature and of snow accumulation and melting were also studied. The calibration and validation results showed that the model performed well in simulating snow dynamics, soil temperature, the growth of barley, and the response of crop growth to N fertilization under present conditions. According to the simulation runs, if a cultivar was adapted to the length of the growing period, the increase in dry matter production was 23% in a low estimate scenario of climate change, and 56% in a high estimate scenario under a high level of nitrogen fertilization. The simulation study showed that the shoot dry weight increased by 43%, on average, under high N fertilization (150-200 kg N/ha), but by less (20%) under a low level of N (25-50 kg N/ha) when the conditions under a central scenario for the year 2050 were compared with the present ones.;https://journal.fi/afs/article/view/5524 |
| spellingShingle | J. KLEEMOLA T. KARVONEN Modelling growth and nitrogen balance of barley under ambient and future conditions Agricultural and Food Science |
| title | Modelling growth and nitrogen balance of barley under ambient and future conditions |
| title_full | Modelling growth and nitrogen balance of barley under ambient and future conditions |
| title_fullStr | Modelling growth and nitrogen balance of barley under ambient and future conditions |
| title_full_unstemmed | Modelling growth and nitrogen balance of barley under ambient and future conditions |
| title_short | Modelling growth and nitrogen balance of barley under ambient and future conditions |
| title_sort | modelling growth and nitrogen balance of barley under ambient and future conditions |
| url | https://journal.fi/afs/article/view/5524 |
| work_keys_str_mv | AT jkleemola modellinggrowthandnitrogenbalanceofbarleyunderambientandfutureconditions AT tkarvonen modellinggrowthandnitrogenbalanceofbarleyunderambientandfutureconditions |