Abstract
The relationship of N to some other anions was investigated for plants grown in infertile soil low in soil organic matter from bare desert areas compared with plants grown in more fertile soil from around natural shrub clumps. The objective was to determine nutrient relationships in the infertility of desert soils even when supplied with N. Range grass (Hilaria rigida (Thurb.) Benth. ex Scribn.), barley (Hordeum vulgare L. 'Atlas 57'), and bush beans (Phaseolus vulgaris L. 'Improved Tendergreen') were grown in such soils in a glasshouse. The latter two were with and without addition of N fertilizer. Plants grown in the infertile soil compared with the fertile soil had greatly decreased yields, were low in N, generally had increased concentrations of Si, and had slightly less total cation concentrations. Nitrogen fertilizer improved yields only slightly in the infertile soil but it increased N concentration and decreased that of Si in plants. The Si seemed to enter into the cation-anion balance in the plants.
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Claims 8
Claim · model-written summary
Plants in infertile soil had greatly decreased yields relative to fertile soil.
- Taxon
- Hilaria rigida
Hilaria rigidae1 - Treatment
- infertile soile0
- Outcome
- yieldse0
- Direction
- decreasede0
- Comparator
- fertile soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants grown in the infertile soil compared with the fertile soil had greatly decreased yields”
e1“Range grass (Hilaria rigida (Thurb.) Benth. ex Scribn.), barley (Hordeum vulgare L. 'Atlas 57'), and bush beans (Phaseolus vulgaris L. 'Improved Tendergreen')”
Claim · model-written summary
Plants in infertile soil had low nitrogen concentrations.
- Taxon
- Hilaria rigidaHilaria rigidae1
- Outcome
- Ne0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were low in N”
e1“Range grass (Hilaria rigida (Thurb.) Benth. ex Scribn.)”
Claim · model-written summary
Plants in infertile soil generally had increased silicon concentrations.
- Taxon
- Hilaria rigidaHilaria rigidae2
- Treatment
- infertile soile1
- Outcome
- concentrations of Sie0
- Direction
- increasede0
- Comparator
- fertile soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“generally had increased concentrations of Si”
e1“Plants grown in the infertile soil compared with the fertile soil”
e2“Range grass (Hilaria rigida (Thurb.) Benth. ex Scribn.)”
Claim · model-written summary
Plants in infertile soil had slightly lower total cation concentrations.
- Taxon
- Hilaria rigidaHilaria rigidae2
- Treatment
- infertile soile1
- Outcome
- total cation concentrationse0
- Direction
- lesse0
- Comparator
- fertile soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had slightly less total cation concentrations”
e1“Plants grown in the infertile soil compared with the fertile soil”
e2“Range grass (Hilaria rigida (Thurb.) Benth. ex Scribn.)”
Claim · model-written summary
Nitrogen fertilizer improved yields only slightly in infertile soil.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Treatment
- Nitrogen fertilizere0
- Outcome
- yieldse0
- Direction
- improvede0
- Qualifier
- only slightly in the infertile soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Nitrogen fertilizer improved yields only slightly in the infertile soil”
e1“barley (Hordeum vulgare L. 'Atlas 57')”
Claim · model-written summary
Nitrogen fertilizer increased plant nitrogen concentration.
- Taxon
- barleyHordeum vulgaree2
- Treatment
- Nitrogen fertilizere1
- Outcome
- N concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it increased N concentration”
e1“Nitrogen fertilizer improved yields only slightly in the infertile soil”
e2“barley (Hordeum vulgare L. 'Atlas 57')”
Claim · model-written summary
Nitrogen fertilizer decreased plant silicon concentration.
- Taxon
- barleyHordeum vulgaree2
- Treatment
- Nitrogen fertilizere1
- Outcome
- Si in plantse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased that of Si in plants”
e1“Nitrogen fertilizer improved yields only slightly in the infertile soil”
e2“barley (Hordeum vulgare L. 'Atlas 57')”
Claim · model-written summary
Silicon appeared to contribute to plant cation-anion balance.
- Taxon
- barleyHordeum vulgaree1
- Compound
- Sie0
- Outcome
- cation-anion balancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Si seemed to enter into the cation-anion balance in the plants.”
e1“barley (Hordeum vulgare L. 'Atlas 57')”
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- no effect
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472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative
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See all 550 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.