Lime microdosing: A new liming strategy for increased productivity in acid soils
Sampson Agyin‐Birikorang, Raphael Adu‐Gyamfi, Davie M. Kadyampakeni, Rachel A. Chambers, Ignatius Tindjina, Haruna W. Dauda
Soil Science Society of America Journal 2024 DOI: 10.1002/saj2.20610 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Field experiment Peer reviewed |
|---|---|
| Population | Corn (Zea mays L.) cropping systems at four sites across the United States, Ghana, and Burkina Faso |
| Interventions | Lime microdosing (LMD) Traditional lime broadcasting |
| Dose | 5%, 10%, 25%, and 50% of the calculated lime-requirement rate (LR) for LMD; 75% and 100% LR for traditional lime broadcasting |
| Duration | 3-year study |
| Topics | Microdosing |
| Key findings | Lime microdosing at 25% of the calculated lime-requirement rate produced corn grain yield, nitrogen, phosphorus, and potassium recovery efficiency, and rhizosphere aluminum saturation similar to traditional lime broadcasting at 100% LR, and better than broadcasting at 75% LR. Rates below 25% LR were not agronomically effective. The authors suggest LMD could be an efficient liming technique, but economic analyses are needed to determine profitability. |
Abstract
Abstract Despite the effectiveness of the fertilizer microdosing technique, lime microdosing (LMD) to alleviate the negative impacts of soil acidity has not been comprehensively assessed. In a 3‐year study at four sites across three countries (one in the United States, two in Ghana, and one in Burkina Faso), we evaluated the effectiveness of the microdosing technique for lime application to alleviate the adverse effects of soil acidity in cropping systems, using corn ( Zea mays L.) as the study crop. LMD was evaluated at four lime application rates, including 5%, 10%, 25%, and 50% of the calculated lime‐requirement rate (LR), which was compared to the traditional lime broadcasting strategy using 75% and 100% LR. Averaged across all experimental sites for the duration of the study, LMD with 25% LR resulted in similar grain yield, and nitrogen, phosphorus, and potassium recovery efficiency as those of the traditional lime broadcast techniques with 100% LR, but significantly greater than those of the lime broadcast techniques with 75% LR. Postharvest rhizosphere aluminum saturation percentage of the LMD with 25% LR was similar to that of the traditional lime broadcast techniques with 100% LR. However, LMD with lime application rates lower than 25% LR was not agronomically effective. The combined results suggest that LMD could be an efficient liming technique, and that with this technique, as little lime material as 25% LR could be used to mitigate the negative impacts of Al toxicity associated with soil acidity. Nevertheless, economic analyses are required to determine the profitability of utilizing the LMD technique to mitigate the negative impacts of soil acidity on crop production relative to the traditional lime‐broadcast approach.
Comparable studies
Other experimental studies on microdosing, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Microdosing Clinical Study: Pharmacokinetic, Pharmacogenomic (SLCO2B1), and Interaction (Grapefruit Juice) Profiles of Celiprolol Following the Oral Microdose and Therapeutic Dose Healthy volunteers matched for SLCO2B1 genotype | 2011 | Pharmacokinetic study | n = 30 |
| Microdosing psychedelics has no impact on cognitive function in naturalistic settings Participants during their microdosing regimen | 2023 | Observational within-subjects design | n = 17 |
| PK and PK / PD Modeling of Bcl2 Inhibitor S65487 in Patients With AML and Investigation of Nonlinearity With Microdosing Phase I/II cancer patients and healthy volunteers | 2026 | Pharmacokinetic/pharmacodynamic modeling study | |
| Technical pen-based printhead for high-precision microdosing of personalized therapies. | 2026 | Experimental study | |
| Analysis of Serotonin in Caenorhabditis Elegans Subjected to Micro-Dosing with Psilocybin| Iris Publishers Caenorhabditis elegans | 2025 | Experimental study |