By Sabri Ben-AchourMaryland's Governor Martin O'Malley says farmers in his state are taking steps to reduce runoff from their fields.Almost 1700 farmers in Maryland are going to plant a half million acres of Cover Crops this fall.Cover crops in this case are things such as rye, barley, or wheat.They are planted after a farmer's regular crops are done, and they act like a sponge to soak up extra fer