Effect of Subsoiling and Deep Fertilizer Placement on Yields of Corn in Iowa and Illinois1
- 1 April 1960
- journal article
- research article
- Published by Wiley in Agronomy Journal
- Vol. 52 (4) , 185-189
- https://doi.org/10.2134/agronj1960.00021962005200040002x
Abstract
Synopsis: Subsoiling to 16 and 24 inches depth did not increase corn yields in Iowa during 1955, 1956, and 1957. In Illinois, Subsoiling to 12 and 18 inches depth produced a significant corn yield response at the lower depth in only 2 out of 14 experiments in 1955 and 1956. Fertilizer placed deep in the subsoiled channel was not as effective as fertilizer plowed under in the Iowa experiments.Keywords
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