Work out transplanting requirement instantly with clear inputs, formula shown and shareable results.
Seedling requirement is area x target population, raised by a gap-filling allowance because some transplants always fail in the first fortnight and must be replaced from held-back stock. Dividing by the planting rate per worker per day gives the labour to book for the operation.
Seedling requirement
Seedlings = area (ha) x population (per ha) x (1 + gap-filling %)
Labour
Man-days = seedlings / seedlings planted per worker per day
Within 7-14 days of transplanting, while the replacement can still catch up with the main crop. Later gap filling produces uneven maturity at harvest.
The seedling requirement is the same, but a rice transplanter needs mat-type nursery trays and covers 2-4 hectares a day, so replace the per-worker rate with the machine's field capacity.