1960•Agronomy JournalRequires access
Effect of Subsoiling and Deep Fertilizer Placement on Yields of Corn in Iowa and Illinois1
W. E. Larson, W. G. Lovely, John Pesek, R. E. Burwell
Open publisher page 17 citations
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.