Abstract
The effects of lime and P additions on barley yield from an acid, P-deficient soil from the southeastern United States were examined in this laboratory and glasshouse study. The soil, Brevard, was amended with P in the presence and absence of lime. Six levels of P (50 to 175 μg/g) and three levels of lime (0 to 1350 μg/g were used. At any given level of P addition, increasing levels of lime addition increased plant yield and plant uptake of Ca and P. Associated soil effects were increases in solution P, reductions in the level of Al extractable with 0.01 M CaCl2, and no changes in HCl-H2SO4-NH4F-extractable P. All these effects were examined so that the increases in plant yield might be explained. Calcium was ruled out as a factor in the yield increases, because its concentrations in the plants from the unlimed soil were not growth-limiting. Most likely, the lime applications increased plant yield first by neutralizing Al toxicity in the soil and then by increasing the concentration of solution P. Liming-induced increases in the concentration of solution P, which were evident in this study, have been predicted but largely undemonstrated.
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 8
Claim · model-written summary
At a given phosphorus level, more lime increased barley yield.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Treatment
- increasing levels of lime additione0
- Outcome
- plant yielde0
- Direction
- increasede0
- Comparator
- given level of P additione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“At any given level of P addition, increasing levels of lime addition increased plant yield and plant uptake of Ca and P.”
t0“PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
At a given phosphorus level, more lime increased plant uptake of calcium.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- increasing levels of lime additione0
- Outcome
- plant uptake of Cae0
- Direction
- increasede0
- Comparator
- given level of P additione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At any given level of P addition, increasing levels of lime addition increased plant yield and plant uptake of Ca and P.”
t0“PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
At a given phosphorus level, more lime increased plant uptake of phosphorus.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- increasing levels of lime additione0
- Outcome
- plant uptake of Ca and Pe0
- Direction
- increasede0
- Comparator
- given level of P additione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At any given level of P addition, increasing levels of lime addition increased plant yield and plant uptake of Ca and P.”
t0“PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
Lime increased soil solution phosphorus.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- LIMEt0
- Outcome
- solution Pe0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Associated soil effects were increases in solution P”
t0“LIME, PHOSPHATE FERTILIZER, AND ALUMINUM ON PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
Lime reduced extractable soil aluminum.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- LIMEt0
- Outcome
- Al extractable with 0.01 M CaCl2e0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reductions in the level of Al extractable with 0.01 M CaCl2”
t0“LIME, PHOSPHATE FERTILIZER, AND ALUMINUM ON PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
Lime did not change acid-extractable phosphorus.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- LIMEt0
- Outcome
- HCl-H2SO4-NH4F-extractable Pe0
- Direction
- no changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no changes in HCl-H2SO4-NH4F-extractable P”
t0“LIME, PHOSPHATE FERTILIZER, AND ALUMINUM ON PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
Calcium was ruled out as the yield-increase factor because calcium concentrations in plants from unlimed soil were not growth-limiting.
- Taxon
- barleyHordeum vulgaree1
- Outcome
- yield increasese0
- Qualifier
- not growth-limitinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium was ruled out as a factor in the yield increases, because its concentrations in the plants from the unlimed soil were not growth-limiting.”
t0“PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
Claim · model-written summary
The authors attributed liming-related yield increases first to neutralizing aluminum toxicity and then to raising soil solution phosphorus.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- lime applicationse0
- Outcome
- plant yielde0
- Qualifier
- first by neutralizing Al toxicity in the soil and then by increasing the concentration of solution Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most likely, the lime applications increased plant yield first by neutralizing Al toxicity in the soil and then by increasing the concentration of solution P.”
t0“PLANT YIELD”
e1“barley yield from an acid, P-deficient soil from the southeastern United States”
The same questions in other papers
lime · yield · Hordeum vulgare (barley)Results differ
52 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
50 papers more in this group
See all 54 papers →lime · molecular: metabolites · Hordeum vulgare (barley)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →lime · nutrient: content · Hordeum vulgare (barley)Results agree
13 papers in the same direction as this paper
- positive
- positive
- positive
10 papers more in this group
See all 14 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.