Maize and Bean Yield Response to Lime Application in Zambia

Zambia is the geographic scope for this dataset of plot-level maize and common bean yields from on-farm trials. It was generated by the Guiding Acid Soil Management Investments in Africa (GAIA) project, with data collected in the first year after trial establishment. The dataset includes yield measurements from 15 farms testing four lime application rates each.

Use Cases

• Modeling crop yield response curves based on lime application rates.
• Analyzing spatial variability in soil acidity treatment effects across farms.
• Linking agronomic trial data with external soil property datasets using the soil sample identifier (SSN).

Strengths

• Data originates from a structured experimental design (randomized complete block design) with 15 replications (farms).
• Includes a lookup table mapping variable names to a standardized agronomic terminology repository (terminag).
• Can be linked to external predicted soil property datasets via a unique identifier.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Contains only first-year yield data; long-term effects of lime application are not included.

Provenance

Source

CIMMYT Harvested Dataverse, author Kamaluddin Tijani ALIYU.

Collection Method

Researcher-managed on-farm trials following a randomized complete block design.

Time Range

Data collected in the first year after trial establishment.

Freshness

Last updated 2026-06-02 09:10:08; freshness should be verified.

Geography

Zambia.