it is understood that the forwardmost portion of this tongue 12 attaches to a standard towing hitch of a tractor not shown the planter 10 is a standard item and generally comprises storage means for seeds and fertilizer means to automatically create a furrow in the ground means to automatically dispense the seeds into the furrow and means to cover the deposited seeds all of these elements are well known in the art and none are to be considered as part of this invention the coulters 34 are attached to the planter by way of framework assemblies 14 attached to either side of tongue 12 as shown in fig1 a detailed view of one of these framework assemblies 14 is shown in fig2 4 it being understood that the framework assembly 14 on the opposite side is a mirror image of this and that the constructional details are the same in each case framework assembly 14 comprises lateral member 16 having one end attached to mounting plate 18 by any convenient means such as welding bolting or the like lateral member 16 may be fabricated of any material having suitable strength but has been found that steel tubing having a generally square cross section of 31 2 inches on a side and a 3 8 inch wall thickness possesses sufficient strength and rigidity mounting plate 18 may be steel plate of 1 4 inch thickness or any other suitable material mounting plate 18 is attached to the sides of tongue 12 by way of bolts 20 located near each corner of the.