Watch both the bed and the crop. Record delayed development, competitor growth, insects, excess wetness and differences between exposed and sheltered areas. Compare these with preparation, rain or watering events and local measurements. If a crop changes rapidly, increase observation rather than assuming the next routine inspection will be soon enough.
When a problem appears, prevent unnecessary movement of suspect material through clean areas and obtain a crop-specific assessment. Do not transfer pesticide or substrate-treatment doses from old training documents directly into a current operating instruction. Safety, current registration, crop use and the exact problem must be checked independently.