Abstract
Crop root growth and grain yield can be affected by chemical modifications in the soil profile due to surface lime application. A field trial was carried out on a loamy dystrophic Typic Hapludox at Ponta Grossa, State of Paraná, Brazil, to evaluate root growth and grain yield of wheat (Triticum aestivum L. cv. CD 104, moderately susceptible to Al), about 10 years after surface liming (0, 2, 4, and 6 Mg ha-1) and three years after surface re-liming (0 and 3 Mg ha-1), in a long-term no-till cultivation system. Soil acidity limited wheat root growth and yield severely, probably as a result of extended water deficits during the vegetative stage. Surface liming caused increases up to 66% in the root growth (0-60 cm) and up to 140% in the grain yield. Root density and grain yield were correlated positively with soil pH and exchangeable Ca2+, and negatively with exchangeable Al3+ and Al3+ saturation, in the surface and subsurface layers.
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Claims 7
Claim · model-written summary
Soil acidity severely limited wheat root growth and yield.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- wheat root growth and yielde0
- Direction
- limitede0
- Setting
- Soil aciditye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Soil acidity limited wheat root growth and yield severely”
Claim · model-written summary
Surface liming increased wheat root growth by up to 66%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Surface liminge0
- Outcome
- root growthe0
- Direction
- increasese0
- Value
- 66%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Surface liming caused increases up to 66% in the root growth (0-60 cm) and up to 140% in the grain yield”
Claim · model-written summary
Surface liming increased wheat grain yield by up to 140%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Surface liminge0
- Outcome
- grain yielde0
- Direction
- increasese0
- Value
- 140%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Surface liming caused increases up to 66% in the root growth (0-60 cm) and up to 140% in the grain yield”
Claim · model-written summary
Wheat root density and grain yield correlated positively with soil pH.
- Taxon
- wheatTriticum aestivumt0
- Compound
- soil pHe0
- Outcome
- Root density and grain yielde0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Root density and grain yield were correlated positively with soil pH and exchangeable Ca2+, and negatively with exchangeable Al3+ and Al3+ saturation, in the surface and subsurface layers”
Claim · model-written summary
Wheat root density and grain yield correlated positively with exchangeable Ca2+.
- Taxon
- wheatTriticum aestivumt0
- Compound
- exchangeable Ca2+e0
- Outcome
- Root density and grain yielde0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Root density and grain yield were correlated positively with soil pH and exchangeable Ca2+, and negatively with exchangeable Al3+ and Al3+ saturation, in the surface and subsurface layers”
Claim · model-written summary
Wheat root density and grain yield correlated negatively with exchangeable Al3+.
- Taxon
- wheatTriticum aestivumt0
- Compound
- exchangeable Al3+e0
- Outcome
- Root density and grain yielde0
- Direction
- negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Root density and grain yield were correlated positively with soil pH and exchangeable Ca2+, and negatively with exchangeable Al3+ and Al3+ saturation, in the surface and subsurface layers”
Claim · model-written summary
Wheat root density and grain yield correlated negatively with Al3+ saturation.
- Taxon
- wheatTriticum aestivumt0
- Compound
- Al3+ saturatione0
- Outcome
- Root density and grain yielde0
- Direction
- negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Root density and grain yield were correlated positively with soil pH and exchangeable Ca2+, and negatively with exchangeable Al3+ and Al3+ saturation, in the surface and subsurface layers”
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See all 173 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.