Department of Agronomy
Some results of an experiment conducted from 1953 through 1962 at the Redfield Development Farm are compiled in this bulletin. The experiment evaluated various fertilizer rates and times of application in two irrigated rotations.
Yield results are taken from 1957, 1958, 1960, and 1962. The information gathered prior to 1957 is omitted because one of the rotations was still in the first cycle. Data from 1959 are excluded because insufficient quantities of irrigation water produced uncommonly low crop yields. The 1961 data are discarded since technological difficulties abnormally affected crop yield measurements. Discarding these data is justified as these problems likely would not be encountered by farmers who eventually will irrigate similar soils.
Oahe Irrigation Area fertilization rotations
South Dakota Experiment Station, South Dakota State University
Eveson, P. D. and Fine, L. O., "Fertilizing Irrigated Rotations in the Proposed Oahe Irrigation Area" (1964). Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011). 516.