The present invention relates to a weeder which is mounted on a front side or a rear side of an agricultural tractor to cut stems of crops such as underground crops and others, and particularly, to a tractor weeder having a furrow stem cutting unit including a second stem cutting unit installed on the rear such that the second stem cutting unit is separated from a first stem cutting unit to cut stems within a furrow. The purpose of the present invention is to provide a tractor weeder having a furrow stem cutting unit that is capable of solving various problems generated by uncut crops in furrows during a crop harvesting operation by placing the furrow stem cutting unit on the furrows between ridges, thereby cutting the uncut crop stems. In a tractor weeder installed in the front or rear of a tractor to cut crop stems, a tractor weeder having a furrow stem cutting unit according to the present invention includes: a weeder body having a connecting unit to be mounted on a tractor a first stem cutting unit which is installed at one side of the weeder body and cuts crop stems within ridges and furrows a second stem cutting unit which is placed within the furrows to cut uncut stems among crop stems cut by the first stem cutting unit a power transmission unit which transmits power from the tractor to the first and second stem cutting units an auxiliary wheel for movement which includes a vertical shaft installed on the weeder body to be rotated around a hinge shaft and formed to be expanded by a handle installed at the upper side, and a wheel installed at the bottom of the vertical shaft such that the auxiliary wheel for movement is capable of adjusting the height of the weeder body while moving the weeder along the furrows and a rotation adjusting unit which adjusts a gap between the ground and a second cutting blade for furrows of the second stem cutting unit by rotating the hinge shaft to an arbitrary angle.COPYRIGHT KIPO 2016본 발명은 농업용 트랙터의 일측인 전방 또는 후장에 장착되어 땅속작물 등의 작물
