Claim · model-written summary
Predicted median relative yield under N limitation was 0.51, over 44% of upland dry-season cropland.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirection
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Verbatim
e0“The predicted median RY of N, P, K, and Zn, representing average soil fertility, was 0.51, 0.84, 0.87, and 0.97, accounting for 44, 54, 54, and 48% upland dry season crop area of Bangladesh, respectively”
t0“maize yield”
Title
Zia Uddin Ahmed; Timothy J. Krupnik; Jagadish Timsina; et al. Artificial Intelligence in Agriculture 2024. doi:10.1016/j.aiia.2024.08.001
Other claims from this paper (15)
- Method / resource A stack-ensemble model performed best for predicting relative yield for N, P, and Zn.
- Method / resource Deep learning outperformed all base learners in predicting relative yield for K.
- Method / resource The best model had an RMSE of 0.122 for relative yield under N limitation.
- Method / resource The best model had an RMSE of 0.105 for relative yield under P limitation.
- Method / resource The best model had an RMSE of 0.123 for relative yield under K limitation.
- Method / resource The best model had an RMSE of 0.104 for relative yield under Zn limitation.
- Association Soil pH was the most important variable controlling maize relative yields under N and P limitation.
- Association Maize relative yield under K limitation was lower toward the east.
- Association Soil N and Zn were associated with maize relative yield under Zn limitation.
- Observation Predicted median relative yield under P limitation was 0.84, over 54% of upland dry-season cropland.
- Observation Predicted median relative yield under K limitation was 0.87, over 54% of upland dry-season cropland.
- Observation Predicted median relative yield under Zn limitation was 0.97, over 48% of upland dry-season cropland.
- Intervention effect More than 70% of fields showed a positive maize-yield response to N, P, K, and Zn.
- Observation Median nutrient-limited relative yields ranked Zn above K above P above N.
- Recommendation The authors call for updated land, soil, and indigenous nutrient supply databases combined with management data to refine maize nutrient guidelines.