farm sprayer 1.applied to spray herbicide,insecticide, liqid fertilizer for corn, wheat, soybean and etc Farm tractor ... with rear PTO shaft ,mainly applied to spray herbicide ,insecticide ,liqid fertilizer for corn ,wheat ,soybean,aslo used to clean ... and implement ,all vehicles and livestock shed by connecting with spray gun (optional) , this machine has simple structure ,convenient operation & ...