Claim · model-written summary
Sulfur rate, source and timing did not affect yield on soils with SOM above 20 g kg −1.
- Taxon
- Spring wheat
Triticum aestivume0 - Treatment
- S rate, source, or timinge0
- Outcome
- grain yielde0
- Direction
- not affectede0
- Qualifier
- soil organic matter (SOM) >20 g kg −1e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Spring wheat grain yield and protein concentration were not affected by S rate, source, or timing with soil organic matter (SOM) >20 g kg −1”
Title
Do Hard Red Spring Wheat Varieties Vary in Their Response to Sulfur?
Daniel E. Kaiser; Apurba K. Sutradhar; Jochum J. Wiersma Agronomy Journal 2019. doi:10.2134/agronj2018.12.0798
Other claims from this paper (9)
- Intervention effect Sulfur rate, source and timing did not affect protein concentration on high SOM soils.
- Intervention effect Eight kg S ha −1 maximized grain yield on low SOM soils.
- Intervention effect Eight kg S ha −1 maximized protein concentration on low SOM soils.
- Observation Flag leaf sulfur concentration varied among varieties independently of sulfur rate.
- Association Yield declined below flag leaf S concentration of 4.1 g S kg −1.
- Association Yield responses were likely below 2.8 g S kg −1 flag leaf sulfur.
- Association Tissue N/S ratios related negatively to grain yield.
- Recommendation Sulfur application should target soils with SOM below 20 g kg −1.
- Recommendation Sulfur rate guidelines should not vary by variety.