Claim · model-written summary
Straw return increased soil available Cd by 12.7% versus no-straw controls.
- Taxon
- rice
Oryza sativat0 - Treatment
- straw returne0
- Outcome
- soil available Cde0
- Direction
- increasede0
- Value
- 12.7%e0
- Comparator
- no-straw controlse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“straw return significantly increased soil available Cd by 12.7% (95% CI: 8.0%–16.7%) and total Cd by 7.7% (95% CI: 3.5%–12.0%) relative to no-straw controls”
Title
Aikui Guo; Hongfang Ren; Xingyu Hao Frontiers in Environmental Science 2026. doi:10.3389/fenvs.2026.1779574
Other claims from this paper (13)
- Intervention effect Straw return increased soil total Cd by 7.7% versus no-straw controls.
- Intervention effect Straw return elevated soil organic matter by 12.3%.
- Intervention effect Straw return elevated soil pH by 1.8%.
- Association Acidic starting pH gave the strongest enhancement of available Cd, which weakened as pH rose.
- Intervention effect Rice straw increased available Cd by 20.0%.
- Intervention effect Rice straw increased total Cd by 10.1%.
- Intervention effect Wheat straw had negligible effects on soil Cd.
- Intervention effect Rapeseed straw had negligible effects on soil Cd.
- Association Soil available Cd was positively correlated with grain Cd concentration.
- Association Soil available Cd was positively correlated with straw Cd concentration.
- Association Soil available Cd was positively correlated with root Cd concentration.
- Association Total Cd had no significant association with rice tissue Cd concentrations.
- Recommendation The authors call for site-specific straw management to limit Cd risk in rice production.