Furrow plow ndi pulawo yokhala ndi mawilo anayi okwera thalakitala.Ndi yabwino kwa famu ndi udzu ambiri ndi zimayambira pamwamba ndi zimayambira anabwerera kumunda, si kophweka anaimitsa ndi kukoka, nthaka.Ndi kutembenuza nthaka kugwedezeka, mphamvu yothamanga imakhala yochepa, mphamvu yowonongeka imakhala yochepa kwambiri, choncho mphamvu yake imakhala yochuluka ndipo mafuta otsika amakhala ochepa kuposa gawo la pulawo.