Rice Nitrogen Rate and Timing Field Trials in Northwestern Ethiopia

A two-year field experiment across four sites in Ethiopia evaluated nitrogen application rates and split-timing schedules for lowland rice. The dataset likely contains measurements of grain yield, biomass, chlorophyll content (SPAD), nitrogen use efficiency, and economic returns. It was authored by Abebe Getu Asfaw and last updated on 2026-05-25.

Use Cases

• Modeling optimal nitrogen application rates based on grain yield and economic return data.
• Analyzing the impact of split-application timing on nitrogen use efficiency metrics.
• Comparing crop productivity (yield, biomass) across different nitrogen management strategies.
• Conducting cost-benefit analysis for fertilizer use in resource-constrained farming systems.

Strengths

• Results are based on a two-year, multi-site field experiment with a factorial randomized complete block design.
• The description provides specific, quantitative findings, such as a maximum grain yield of 7.70 t ha⁻¹ and a net return of 238,336 ETB ha⁻¹.
• Economic analysis includes detailed metrics like Value-Cost Ratio (8.7) and Marginal Rate of Return (765.8%).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is small (105.2 KB), indicating limited scope.

Provenance

Source

figshare

Collection Method

Field experiment employing a factorial randomized complete block design.

Time Range

Two-year study period.

Freshness

Last updated 2026-05-25 09:17:20; freshness should be verified.

Geography

Four sites in lowland agroecosystems of Northwestern Ethiopia.