Claim · model-written summary
Top growth and nodule number rose when Al saturation fell from 28% to 4%.
- Taxon
- soybean
Glycine maxe1 - Treatment
- Al saturation was reduced from 28 to 4%e0
- Outcome
- Top growth and nodule numbere0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Top growth and nodule number increased as the Al saturation was reduced from 28 to 4%”
e1“soybean [ Glycine max (L.) Merr.]”
Title
Effect of Soil Al Saturation on Nutrient Concentration of Soybean Tops, Roots, and Nodules1
J. B. Sartain; E. J. Kamprath Agronomy Journal 1977. doi:10.2134/agronj1977.00021962006900050029x
Other claims from this paper (15)
- Intervention effect Soil Al saturation did not affect phosphorus concentration in soybean tops.
- Intervention effect Root phosphorus concentration was significantly higher at 81% Al saturation than at 28% and 4%.
- Observation Nodules had much higher phosphorus concentration than other soybean parts.
- Intervention effect More calcium carbonate increased calcium concentration in all soybean parts.
- Observation Soybean tops had the highest calcium concentration and nodules the lowest.
- Intervention effect Al saturation of 81% versus 28% did not significantly affect magnesium in tops and primary roots.
- Association Nodule magnesium concentration declined as Al saturation decreased.
- Observation Tops and nodules had about twice the magnesium of root components.
- Intervention effect Reducing Al saturation from 81% to 28% lowered top Al concentration by 53%.
- Intervention effect Reducing Al saturation from 81% to 28% lowered root Al concentration by 30%.
- Observation At 81% Al saturation, top Al concentration was 6% of primary-root concentration.
- Observation At 81% Al saturation, top Al concentration was 2% of lateral-root concentration.
- Observation At 81% Al saturation, top Al concentration was 8% of nodule concentration.
- Association Top Al concentration changed very little across the 28% to 4% Al-saturation range.
- Mechanism Authors attributed growth response below 28% Al saturation to pH effects or calcium supply.