Intervention effectmodel-written summary

Cover crop nutrient cycling maintained soil quality and increased soybean leaf nutrient concentrations.

A claim from Cover Crops Optimize Soil Fertility and Soybean Productivity in the Cerrado of MATOPIBA, Brazil · 2025

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cover crop nutrient cycling maintained soil quality and increased soybean leaf nutrient concentrations.

Taxon
soybeansGlycine maxe0
Treatment
CCe0
Outcome
leaf nutrient concentrationse0
Direction
increasese0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Nutrient cycling promoted by CC contributed to the maintenance of soil quality and increases in the leaf nutrient concentrations of soybeans.”

✓ located verbatim in the source · abstract, characters 1090–1231

Title

Cover Crops Optimize Soil Fertility and Soybean Productivity in the Cerrado of MATOPIBA, Brazil

Hosana Aguiar Freitas de Andrade; Edvaldo Sagrilo; José Oscar Lustosa de Oliveira Júnior; et al. Agronomy 2025. doi:10.3390/agronomy15051083

Other claims from this paper (2)

Record rev-71fbd03b25ab786d50d08c6848dbb27c53608a9fc54a144ab308d51413c625d3 · schema claims-v0.9 · position 2 in the model’s answer

cover crop · nutrient: content · Glycine max (soybean)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this claim · 1 in the opposite direction

  1. no effect
    Rye cover cropping had no effect on soybean nitrogen content in 2020.

    Soybean response to cover crop and nitrogen fertilizer timing on sandy soil · 2026

    Opposite direction

  2. positive
    Soybean phosphorus uptake was significantly higher under NTWC than CONT.

    Effect of winter wheat cover cropping with no-till cultivation on the community structure of arbuscular mycorrhizal fungi colonizing the subsequent soybean · 2018 · compared with CONT plots

    Same direction

  3. positive
    Cover crops improved soil total nitrogen by 13 to 29%.

    Cereal rye (Secale cereale L.) cover crop improves soil physico-chemical properties with no influence on soybean (Glycine max L.) root growth parameters · 2022 · compared with NC

    Same direction

  4. positive
    Double-species cover crop treatments were more consistent in increasing activities linked to nutrient cycling.

    Single- versus Double-Species Cover Crop Effects on Soil Health and Yield in Mississippi Soybean Fields · 2021

    Same direction

  5. positive
    Cover crop combinations increased soil calcium and manganese levels.

    Sustainable agricultural practices to improve soil quality and productivity of soybean and upland rice · 2023 · compared with fallow

    Same direction

  6. positive
    Ryegrass cover increased soybean nitrogen absorption to 44.93 ± 2.74 kg ton−1.

    Protein and Oil Contents, Micro- and Macronutrients, and Other Quality Indicators of Soybean Cultivated in Lowland Fields · 2024

    Same direction

  7. positive
    Cover crops contributed up to 202% more nitrogen inputs than fallow and maize.

    Trade-offs of tropical cover crops: enhanced carbon inputs and soybean yield offset higher N2O emissions · 2025 · compared with soybeans followed by fallow and maize

    Same direction

  8. positive
    Legume-mix cover crops had superior soybean nutrient uptake to grass-mix cover crops.

    Winter cover crops impact on soybean yield and quality in Mississippi Delta · 2026 · compared with GM CCs

    Same direction

See all 9 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.