so if i put 6 farmers, all farming and watering the crops, compared to 1 farmer farming and watering the crops, they will come up at the same time!? please confirm this

also, since I am at the subject, once the crops are up out of the ground, if 6 farmers are taking them out and putting them in the food bin, does that make the crops deplete faster than if 1 farmer does it? what I am asking is do the crops stay out of the ground for a certain amount of time, or until they are all picked out?