Job Description:

• 1) Tends machine that mixes nitrogen, phosphate, and potash to produce fertilizer: Pulls lever to feed dry materials from storage hopper into mixer.

• 2) Observes gauges and turns valves to admit specified amounts of liquids, such as ammonia and sulfuric acid, into mixer.

• 3) Stops mixer after specified time and turns handwheel or pulls lever to dump batch onto conveyor.