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Acidification Of Soil In A Dry Land Winter Wheat-Sorghum/Corn-Fallow Rotation In The Semiarid U.S. Great Plains, David D. Tarkalson, Jose O. Payero, Gary W. Hergert, Kenneth G. Cassman
Acidification Of Soil In A Dry Land Winter Wheat-Sorghum/Corn-Fallow Rotation In The Semiarid U.S. Great Plains, David D. Tarkalson, Jose O. Payero, Gary W. Hergert, Kenneth G. Cassman
Department of Agronomy and Horticulture: Faculty Publications
Soil pH is decreasing in many soils in the semiarid Great Plains of the United States under dry land no-till (NT) cropping systems. This study was conducted to determine the rate of acidification and the causes of the acidification of a soil cropped to a winter wheat (Triticum aestivum L.)-grain sorghum [Sorghum bicolor (L.) Moench]/corn (Zea mays L.)-fallow rotation (W-S/C-F) under NT. The study was conducted from 1989 to 2003 on soil with a long-term history of either continuous NT management [NT(LT)] (1962–2003) or conventional tillage (CT) (1962–1988) then converted to NT [NT(C)] (1989–2003). Nitrogen was applied …