Useful for those who plant their fields in "blocks" or "sections" to avoid readiness of maturity so that everything is not all ready at the same time. Then there is no rush to harvest everything at once, you have enough workers to do the harvest for that space in between growth. That said, spray is then spaced out for that one field and there is now a need to keep track of that. Ex: Foliar 1st Set/section/block, Foliar 2nd Set/section/block.
