Individual skill

fcr-experimental-design

Use when designing or defending the field-experiment or modelling design of a Field Crops Research (FCR) manuscript — multi-environment trials, randomization and replication, blocking and split-plot layouts, genotype-by-environment (G×E) structure, and crop-model calibration/validation. FCR expects field experiments to span at least two seasons and/or multiple environments. Strengthens the design; it does not write code.

Field-Crops-Research-Skills/skills/fcr-experimental-design/SKILL.md

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# Experimental Design (fcr-experimental-design)

FCR is demanding about **field-experimental rigour**. The design must credibly connect the agronomic
question to evidence that generalises across environments. The single most important FCR-specific rule:
field experiments should, unless exceptional circumstances apply, span **at least two seasons and/or
multiple locations/environments**. Design for that from the start.

## When to trigger

- Planning a multi-environment trial (MET) or a season×site×treatment layout
- A reviewer questioned randomization, replication, blocking, or G×E inference
- Deciding how to characterise environments (soil, weather, phenology)
- Designing a crop-modelling study (calibration/validation, scenario design)
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