Abstract
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.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
The model performed well for snow dynamics, soil temperature, barley growth and nitrogen response under current conditions.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Outcome
- growth of barley, and the response of crop growth to N fertilizatione0
- Comparator
- present conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“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”
Claim · model-written summary
In a low climate-change estimate, adapted barley cultivar dry matter production rose 23% under high nitrogen.
- Taxon
- spring barleyHordeum vulgaree1
- Treatment
- low estimate scenario of climate changee0
- Outcome
- dry matter productione0
- Direction
- increasee0
- Value
- 23%e0
- Qualifier
- under a high level of nitrogen fertilizatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
e1“spring barley (Hordeum vulgare L.)”
Claim · model-written summary
In a high climate-change estimate, adapted barley cultivar dry matter production rose 56% under high nitrogen.
- Taxon
- spring barleyHordeum vulgaree1
- Treatment
- high estimate scenarioe0
- Outcome
- dry matter productione0
- Direction
- increasee0
- Value
- 56%e0
- Qualifier
- under a high level of nitrogen fertilizatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
e1“spring barley (Hordeum vulgare L.)”
Claim · model-written summary
Under high N, projected 2050 conditions increased barley shoot dry weight by 43% on average against current conditions.
- Taxon
- spring barleyHordeum vulgaree1
- Treatment
- conditions under a central scenario for the year 2050e0
- Outcome
- shoot dry weighte0
- Direction
- increasede0
- Value
- 43%e0
- Qualifier
- under high N fertilization (150-200 kg N/ha)e0
- Comparator
- the present onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
e1“spring barley (Hordeum vulgare L.)”
Claim · model-written summary
Under low N, projected 2050 conditions increased barley shoot dry weight by 20% against current conditions.
- Taxon
- spring barleyHordeum vulgaree1
- Treatment
- conditions under a central scenario for the year 2050e0
- Outcome
- shoot dry weighte0
- Direction
- increasede0
- Value
- 20%e0
- Qualifier
- under a low level of N (25-50 kg N/ha)e0
- Comparator
- the present onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
e1“spring barley (Hordeum vulgare L.)”
The same questions in other papers
climate site · yield · Hordeum vulgare (barley)Positive and negative results
9 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- negative
- negative
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See all 20 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.