Abstract
Abstract Potassium (K) fertilization is important to maintain adequate concentrations of plant available K in agricultural soils to achieve best yields and improve crop stress tolerance and water‐use efficiency ( WUE ). Water‐use efficiency ( WUE ) can be expressed on various spatiotemporal scales, and it is known that responses of WUE to external stress are not uniform across scales. Multiscale evaluations of the impact of varying K fertilization on the WUE of C 3 crops under field conditions are missing so far. In the present field study, we evaluated effects of K fertilization on WUE of sugar beet ( Beta vulgaris L.) on short‐termed leaf‐ ( WUE L eaf ) and canopy‐scales (WUE Canopy ) and as the agronomic ratio of white sugar yield ( WSY ) to in‐season water use (i.e. WUE WSY ). In K‐fertilized plots, WUE WSY was enhanced by 15.9%. This effect is attributed to increased beet yield and WSY , as no differences in total in‐season water use between fertilized and unfertilized plots were observed. Potassium (K) fertilization significantly enhanced the leaf area index, resulting in a more efficient depletion of soil moisture by roots in K‐fertilized plots. As a consequence, WUE L eaf was increased due to stomatal adjustment. Potassium (K) improved WUE C anopy only by tendency. It is concluded that K fertilization improves the WUE of field‐grown sugar beet across scales, but processes that regulate WUE are highly scale dependent.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Potassium fertilization enhanced agronomic white sugar yield water-use efficiency by 15.9%.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise1 - Treatment
- K‐fertilizede0
- Outcome
- WUE WSYe0
- Direction
- enhancede0
- Value
- 15.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In K‐fertilized plots, WUE WSY was enhanced by 15.9%.”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Potassium fertilization increased beet yield and white sugar yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- fertilizede0
- Outcome
- beet yield and WSYe0
- Direction
- increasede0
- Comparator
- unfertilized plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect is attributed to increased beet yield and WSY , as no differences in total in‐season water use between fertilized and unfertilized plots were observed.”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Total in-season water use did not differ between fertilized and unfertilized plots.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- fertilizede0
- Outcome
- total in‐season water usee0
- Direction
- no differencese0
- Comparator
- unfertilized plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no differences in total in‐season water use between fertilized and unfertilized plots were observed”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Potassium fertilization significantly enhanced leaf area index.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- Potassium (K) fertilizatione0
- Outcome
- leaf area indexe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium (K) fertilization significantly enhanced the leaf area index”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Potassium fertilization led to more efficient depletion of soil moisture by roots.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Organ / stage
- rootse0
- Treatment
- Potassium (K) fertilizatione0
- Outcome
- more efficient depletion of soil moisture by rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium (K) fertilization significantly enhanced the leaf area index, resulting in a more efficient depletion of soil moisture by roots in K‐fertilized plots.”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Leaf-scale water-use efficiency increased due to stomatal adjustment.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Outcome
- WUE L eafe0
- Direction
- increasede0
- Qualifier
- stomatal adjustmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a consequence, WUE L eaf was increased due to stomatal adjustment.”
e1“WUE of sugar beet ( Beta vulgaris L.)”
Claim · model-written summary
Potassium improved canopy-scale water-use efficiency only by tendency.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- Potassium (K)e0
- Outcome
- WUE C anopye0
- Direction
- improvede0
- Qualifier
- only by tendencye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium (K) improved WUE C anopy only by tendency.”
e1“WUE of sugar beet ( Beta vulgaris L.)”
The same questions in other papers
fertilization · quality: sugar starch · Beta vulgaris (beet)Results differ
87 papers in the same direction as this paper · 17 in the opposite direction
- negative
- no effect
- no effect
101 papers more in this group
See all 105 papers →fertilization · physiology: water · Beta vulgaris (beet)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →potassium · growth · Beta vulgaris (beet)Positive and negative results
35 papers in the same direction as this paper · 4 in the opposite direction
- positive
- negative
- negative
36 papers more in this group
See all 40 papers →fertilization · growth · Beta vulgaris (beet)Positive and negative results
96 papers in the same direction as this paper · 12 in the opposite direction
- negative
- no effect
- negative
105 papers more in this group
See all 109 papers →potassium · physiology: water · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- positive
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.