In the bottom of the fertilizer box, diamond shape holes are made. The quantity of fertilizer is adjusted by adjusting the size of these holes. Star shaped agitators are provided to avoid the bridging of fertilizer and to feed fertilizer continuously through the holes. The fertilizer setting handle/lever with scale is provided to adjust the required quantity of fertilizer. The fertilizer passes through the hole, into a funnel, to deliver fertilizer into the slit/ furrow opener boots. In other machines, fertilizer box delivers the material to a cup fitted with rotating cells The rotating cells pick up the fertilizer granules (small or large) and deliver them to the fertilizer tubes. This mechanism has the advantage of handling small or large sized fertilizer granules such as urea supergranules (USG) and place them at desired soil depth. Deep placement of USG in rice culture is known to improve efficiency by 20%. Also there is no free flow of fertilizers on turnings of the tractor at field corners.