Method to increase N-use efficiency and reduce leaching
摘要
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.
申请公布号
US5913368(A)
申请公布日期
1999.06.22
申请号
US19980118707
申请日期
1998.07.17
申请人
IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人
HORTON, ROBERT;RESSLER, DANIEL E.;KASPAR, THOMAS C.;BAKER, JAMES L.