Abstract
Information on the fate of micronutrients in plant tissue and total uptake from soil upon exposure to elevated carbon dioxide (CO2) is meager. Hence, this field study was conducted in open top field chambers to investigate the effects of elevated CO2 and applied nitrogen (N) on partitioning and uptake of zinc (Zn), copper (Cu), iron (Fe), and manganese (Mn) in soybean crop under two CO2 and four N levels during 2016 and 2018 crop seasons. The two CO2 concentrations were ambient and elevated (∼550 µmol mol−1). Nitrogen treatments included application at 0, 50, 100, and 150% of the recommended dose. Significant effects of CO2 and N were observed on grain yield, biomass and uptake of the four micronutrients. Seed Fe concentration was significantly increased by 12% under CO2 enrichment. Tukey’s post-hoc test revealed significantly higher grain yield, biomass and uptake of micronutrients in seed and straw under CO2 elevation and at higher N application. Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2. Total uptake of Fe, Zn, Cu, and Mn increased by 39, 38, 34, and 29%, respectively. Nitrogen at 100% level enhanced uptake of Fe, Zn, Cu, and Mn by 25, 20, 32, and 28%. The study bears implications in micronutrient management for sustaining soil health under changing climate.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 19
Claim · model-written summary
Elevated CO2 and higher N increased grain yield significantly.
- Taxon
- soybean
Glycine maxt0 - Treatment
- CO2 elevatione0
- Outcome
- grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher grain yield, biomass and uptake of micronutrients in seed and straw under CO2 elevation and at higher N application”
t0“soybean”
Claim · model-written summary
Elevated CO2 and higher N increased biomass significantly.
- Taxon
- soybeanGlycine maxt0
- Treatment
- CO2 elevatione0
- Outcome
- biomasse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher grain yield, biomass and uptake of micronutrients in seed and straw under CO2 elevation and at higher N application”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased seed iron concentration by 12%.
- Taxon
- soybeanGlycine maxt0
- Treatment
- CO2 enrichmente0
- Outcome
- Seed Fe concentratione0
- Direction
- increasede0
- Value
- 12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed Fe concentration was significantly increased by 12% under CO2 enrichment”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased seed iron uptake by 53%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seede0
- Treatment
- elevated CO2e0
- Outcome
- Uptake of Fee0
- Direction
- increasede0
- Value
- 53e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased seed zinc uptake by 42%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seede0
- Treatment
- elevated CO2e0
- Outcome
- Uptake of Fe, Zne0
- Direction
- increasede0
- Value
- 42e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased seed copper uptake by 36%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seede0
- Treatment
- elevated CO2e0
- Outcome
- Cue0
- Direction
- increasede0
- Value
- 36e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased seed manganese uptake by 41%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seede0
- Treatment
- elevated CO2e0
- Outcome
- Mne0
- Direction
- increasede0
- Value
- 41%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased straw iron uptake by 25%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- strawe0
- Treatment
- elevated CO2e0
- Outcome
- Uptake of Fee0
- Direction
- increasede0
- Value
- 25e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased straw zinc uptake by 26%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- strawe0
- Treatment
- elevated CO2e0
- Outcome
- Zne0
- Direction
- increasede0
- Value
- 26e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased straw copper uptake by 31%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- strawe0
- Treatment
- elevated CO2e0
- Outcome
- Cue0
- Direction
- increasede0
- Value
- 31e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased straw manganese uptake by 18%.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- strawe0
- Treatment
- elevated CO2e0
- Outcome
- Mne0
- Direction
- increasede0
- Value
- 18%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe, Zn, Cu, and Mn increased by 53, 42, 36, and 41%, respectively, in seed and by 25, 26, 31, and 18% in straw under elevated CO2”
t0“soybean”
Claim · model-written summary
Elevated CO2 increased total iron uptake by 39%.
- Taxon
- soybeanGlycine maxt0
- Treatment
- CO2 enrichmente1
- Outcome
- Total uptake of Fee0
- Direction
- increasede0
- Value
- 39e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total uptake of Fe, Zn, Cu, and Mn increased by 39, 38, 34, and 29%, respectively”
t0“soybean”
e1“Seed Fe concentration was significantly increased by 12% under CO2 enrichment”
Claim · model-written summary
Elevated CO2 increased total zinc uptake by 38%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total uptake of Fe, Zn, Cu, and Mn increased by 39, 38, 34, and 29%, respectively”
t0“soybean”
e1“Seed Fe concentration was significantly increased by 12% under CO2 enrichment”
Claim · model-written summary
Elevated CO2 increased total copper uptake by 34%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total uptake of Fe, Zn, Cu, and Mn increased by 39, 38, 34, and 29%, respectively”
t0“soybean”
e1“Seed Fe concentration was significantly increased by 12% under CO2 enrichment”
Claim · model-written summary
Elevated CO2 increased total manganese uptake by 29%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total uptake of Fe, Zn, Cu, and Mn increased by 39, 38, 34, and 29%, respectively”
t0“soybean”
e1“Seed Fe concentration was significantly increased by 12% under CO2 enrichment”
Claim · model-written summary
Recommended-dose nitrogen increased iron uptake by 25%.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Nitrogen at 100% levele0
- Outcome
- uptake of Fee0
- Direction
- enhancede0
- Value
- 25e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen at 100% level enhanced uptake of Fe, Zn, Cu, and Mn by 25, 20, 32, and 28%”
t0“soybean”
Claim · model-written summary
Recommended-dose nitrogen increased zinc uptake by 20%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen at 100% level enhanced uptake of Fe, Zn, Cu, and Mn by 25, 20, 32, and 28%”
t0“soybean”
Claim · model-written summary
Recommended-dose nitrogen increased copper uptake by 32%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen at 100% level enhanced uptake of Fe, Zn, Cu, and Mn by 25, 20, 32, and 28%”
t0“soybean”
Claim · model-written summary
Recommended-dose nitrogen increased manganese uptake by 28%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen at 100% level enhanced uptake of Fe, Zn, Cu, and Mn by 25, 20, 32, and 28%”
t0“soybean”
The same questions in other papers
nitrogen · nutrient: content · Glycine max (soybean)Results differ
72 papers in the same direction as this paper · 20 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
90 papers more in this group
See all 94 papers →altitude · growth · Glycine max (soybean)Positive and negative results
3 in the opposite direction
- no effect
- negative
- no effect
altitude · yield · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →co2 · nutrient: content · Glycine max (soybean)Positive and negative results
11 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
23 papers more in this group
See all 27 papers →co2 · yield · Glycine max (soybean)Positive and negative results
85 papers in the same direction as this paper · 10 in the opposite direction
- positive
- no effect
- negative
92 papers more in this group
See all 96 papers →co2 · growth · Glycine max (soybean)Positive and negative results
82 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- negative
97 papers more in this group
See all 101 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.