Abstract
Potassium (K) and phosphorus (P) are essential macronutrients for potato (Solanum tuberosum L.); they play crucial roles in photoassimilate production that can also be affected by elevated atmospheric CO2 concentration (e[CO2]). However, the interactive effects of K and P nutrition under e[CO2] in potato have not been investigated. A pot experiment was carried out on potato plants in 1-L pots with five K supply rates at two P supply rates in controlled-environment chambers with ambient CO2 concentrations (a[CO2]) and an e[CO2] level of double a[CO2]. There was a significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE). K supply could remarkably enhance the accumulation of plant biomass under e[CO2] by promoting tuber formation. The maximum total plant biomass increased by approximately 1.3-fold under e[CO2] in this study, while the effect of CO2 was dependent on both P and K supply. Additionally, WUE was increased by e[CO2] and P and K supply. Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption. We concluded that the CO2-fertilization effect and WUE were dependent on both P and K supply. Less biomass accumulation in response to K supply in plants with P deficiency indicates that a balanced nutrient status is crucial for crop production under e[CO2].
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 16
Claim · model-written summary
K and P supply significantly interacted for total potato biomass.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- K supply and P supplye1
- Outcome
- total plant biomasse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE)”
Claim · model-written summary
K and P supply significantly interacted for potato water use.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supply and P supplye1
- Outcome
- water usee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE)”
Claim · model-written summary
K and P supply significantly interacted for potato WUE.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supply and P supplye1
- Outcome
- water-use efficiency (WUE)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE)”
Claim · model-written summary
CO2 and K supply did not significantly interact for potato biomass, water use or WUE.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- CO2 and K supplye1
- Outcome
- total plant biomass, water use as well as water-use efficiency (WUE)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE)”
Claim · model-written summary
K supply enhanced biomass accumulation under elevated CO2.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supplye1
- Outcome
- accumulation of plant biomasse1
- Direction
- enhancee1
- Qualifier
- under e[CO2]e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“K supply could remarkably enhance the accumulation of plant biomass under e[CO2] by promoting tuber formation”
Claim · model-written summary
K supply promoted tuber formation under elevated CO2.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supplye1
- Outcome
- tuber formatione1
- Direction
- promotinge1
- Qualifier
- under e[CO2]e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“K supply could remarkably enhance the accumulation of plant biomass under e[CO2] by promoting tuber formation”
Claim · model-written summary
Maximum total potato biomass increased approximately 1.3-fold under elevated CO2.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- e[CO2]e1
- Outcome
- maximum total plant biomasse1
- Direction
- increasede1
- Value
- approximately 1.3-folde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“The maximum total plant biomass increased by approximately 1.3-fold under e[CO2]”
Claim · model-written summary
The CO2 effect on biomass depended on both P and K supply.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- P and K supplye1
- Outcome
- total plant biomasse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“the effect of CO2 was dependent on both P and K supply”
e2“total plant biomass increased”
Claim · model-written summary
Elevated CO2 increased potato water-use efficiency.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- e[CO2]e1
- Outcome
- WUEe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“WUE was increased by e[CO2] and P and K supply”
Claim · model-written summary
P supply increased potato water-use efficiency.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Pe1
- Outcome
- WUEe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“WUE was increased by e[CO2] and P and K supply”
Claim · model-written summary
K supply increased potato water-use efficiency.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supplye1
- Outcome
- WUEe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“WUE was increased by e[CO2] and P and K supply”
Claim · model-written summary
CO2 enrichment increased biomass accumulation and reduced water consumption.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- CO2 enrichmente1
- Outcome
- biomass accumulatione1
- Direction
- stimulatinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption”
Claim · model-written summary
CO2 enrichment reduced water consumption.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- CO2 enrichmente1
- Outcome
- water consumptione1
- Direction
- reducinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption”
Claim · model-written summary
K supply reduced water consumption.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supplye1
- Outcome
- water consumptione1
- Direction
- reducinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption”
Claim · model-written summary
P deficiency limited potato biomass accumulation in response to K supply.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- K supplye1
- Outcome
- biomass accumulatione1
- Direction
- Lesse1
- Qualifier
- P deficiencye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“Less biomass accumulation in response to K supply in plants with P deficiency”
Claim · model-written summary
Balanced nutrient status was judged crucial for crop production under elevated CO2.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- balanced nutrient statuse1
- Qualifier
- under e[CO2]e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato (Solanum tuberosum L.)”
e1“a balanced nutrient status is crucial for crop production under e[CO2]”
The same questions in other papers
co2 · growth · Solanum tuberosum (potato)Positive and negative results
18 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
18 papers more in this group
See all 22 papers →potassium · growth · Solanum tuberosum (potato)Positive and negative results
20 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
20 papers more in this group
See all 24 papers →phosphorus · physiology: water · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
potassium · physiology: water · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- positive
co2 · physiology: water · Solanum tuberosum (potato)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.