A tool bar for placement of a band of fertilizer in soil has a vertical knife with a horizontal blade thereon to create an inverted T-shaped slot in the soil. A band of fertilizer is placed in the bottom of the slot through a tube on the knife. A first coulter fills the slot with soil and compacts the soil above the band. A second coulter forms a mound of soil over the compacted soil and creates an elongated furrow in the soil above and laterally removed from the band. The method of placement of a band of fertilizer in soil sequentially moves the soil and creates the band as accomplished by the foregoing structure.
ISURF Reference Number
Iowa State University Research Foundation, Inc.,
Horton, Robert Jr.; Ressler, Daniel E.; Kaspar, Thomas C.; and Baker, James L., "Method to increase N-use efficiency and reduce leaching" (1999). Iowa State University Patents. 216.