Irrigation scheduling and row configurations for corn in the southeastern coastal plain
1985
Camp, C.R. | Karlen, D.L. | Lambert, J.R.
This study was conducted to determine whether different irrigation scheduling methods, row configurations, plant populations, or fertilization programs could improve energy or water efficiency or improve corn yields. Nonirrigated production was compared to irrigated production where irrigation was scheduled by two methods. Irrigated treatments produced an overall average corn yield of 12. 08 Mg/ha while the nonirrigated treatment produced an average yield of 6. 70 Mg/ha. There were no significant differences in corn yield between scheduling methods, but, compared to nonirrigated treatments, irrigation increased yields 150, 161, and 8 percent in 1980, 1981, and 1982, respectively. The twin-row configuration significantly increased corn grain yield each year by an average of 0. 64 Mg/ha presumably because of reduced intrarow competition for water and increased light interception.
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