The Sickle is now available for farmers only.
To use the sickle, all you have to do is right click instead of left clicking as you harvest. This will automatically replant your crops as you farm.
If you are confused, here's a video tutorial.
With Regards to Pumpkins/Melons, They are classified as fruit bearing plants xD you dont need to replant the seeds in order to get the vegetation. Unlike wheat,carrots,potabo.
With Regards to Pumpkins/Melons, They are classified as fruit bearing plants xD you dont need to replant the seeds in order to get the vegetation. Unlike wheat,carrots,potabo.