Apparatus for placement of fertilizer below seed with minimum so

Details Apparatus for placement of fertilizer below seed with minimum so Apparatus for placement of fertilizer below seed with minimum so

1986-06-19

1988-08-23

Johnson, Richard J.

Planting

Drilling

Lister units

111 73, A01C 2302, A01C 500

Patent

active

047652632

ABSTRACT:
An apparatus and method are described which allow for placement of fertilizer at an optimum separation distance below seed at the time of seeding with a minimum of soil disturbance so that the creation of high ridges adjacent to the seed row is avoided. The apparatus includes a narrow first furrow opener for opening a narrow furrow for fertilizer; a wider second furrow opener attached to the first furrow opener for opening a seed furrow above the first furrow simultaneously in time and at a slightly differential position; a feed tube attached to the trailing edge of the first furrow opener for feeding fertilizer into the fertilizer furrow as it is opened, and a seed deflector for deflecting seeds rearward so that they do not fall into the seed furrow before the fertilizer furrow is filled with soil. The device can be used with existing implement shanks such as a grain drill opener shank.

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D. E. Wilkins, G. A. Muilenburg, B. L. Klepper, and P. E. Rasmussen, "Deep Furrow Opener for Placement of Fertilizer," 1981 Research Report-Columbia Basin Agricultural Research Special Report 623, Agricultural Experiment Station Oregon State University, Jun. 1981, pp. 51-55.
B. Klepper, P. E. Rasmussen, and R. W. Rickman, "Fertilizer Placement for Cereal Root Access," Journal of Soil and Water Conservation, vol. 38, pp. 250-252 (1983).

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