Claim · model-written summary
Complete stover removal decreased soil organic matter by 5.2%.
- Taxon
- stovere0
- Treatment
- Removing all stovere0
- Outcome
- soil organic matter (SOM) contente0
- Direction
- decreasede0
- Value
- 5.2e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Verbatim
e0“Removing all stover significantly decreased soil organic matter (SOM) content and extractable P and K by 5.2, 10.0, and 4.0%, respectively, but did not affect soil microaggregation.”
Title
Sorghum Stover Removal Effects on Soil Organic Matter content, Extractable Nutrients, and Crop Yield
J. M. Powell; F. M. Hons Journal of Sustainable Agriculture 1992. doi:10.1300/j064v02n01_04
Other claims from this paper (8)
- Intervention effect Sorghum cultivar did not influence soil pH, microaggregation, organic C, or extractable nutrients.
- Intervention effect Fertilizer N did not influence soil pH, microaggregation, organic C, or extractable nutrients.
- Intervention effect Complete stover removal decreased extractable P by 10.0%.
- Intervention effect Complete stover removal decreased extractable K by 4.0%.
- Intervention effect Complete stover removal did not affect soil microaggregation.
- Observation Sorghum yields increased over time with annual complete stover removal and no fertilizer N.
- Mechanism Stover removal possibly caused extra annual net nitrogen release estimated at 14 to 35 kg N.
- Mechanism Stover removal possibly caused extra annual net phosphorus release estimated at 1.7 to 4.1 kg P ha−1.