the present invention relates to a knife for and a method of zero till or minimum till seeding and fertilizing . the knife is particularly adapted for dry land conditions producing minimum solid disturbance and very shallow operation . the knife has a high penetration angle preferably of 45 degrees which permits the blade to enter high trash surface cover with little tendency to plug due to trash accumulation . the blade has a forward angle of attack , the lower cutting edge advancing before the upper cutting edge , serving to make a clean cut in the soil surface without accumulating trash . seed and / or fertilizer conduits are attached to or incorporated in the trailing face of the blade in which the outlets may be spaced for controlled placement of the materials . by the method a furrow is cut having a substantial transverse component in an operation with a substantial forward component . a preferred embodiment includes a horizontal extension blade for cutting a horizontal swath at a shallow depth through weed growth . conduits may be secured to the extension to allow greater separation and control of material placement . the knives may be arranged in overlapping configuration on the draw bar to affect weed cutting , seeding and fertilizing of a complete with of soil in a single pass .