use m to change whether your equipment is down(being used) or up(not being used) use 1 to equip the plow use 2 to equip the sower use 3 to equip the harvester use s to sell your grain for money plant seeds with the sower to start a harvest. once the crop is a yellow(not a light green), use the harvester to get the grain. press s to sell the crops, plow the wheat stalks to start planting again.