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Properties of the Galva and Moody Series of Northwestern Iowa¹

ABSTRACT

The purpose of this investigation was to study soil development in relation to loess thickness and annual precipitation in northwestern Iowa. From a study of six profiles located along two traverses, it was concluded that soil properties were related to both loess thickness and annual precipitation on the basis of the amount and distribution of clay, percentage of total nitrogen, base saturation and depth to secondary lime.

¹ Journal Paper No. J-2316, Iowa Agr. Exp. Sta., Ames, Iowa, Project No. 1151.

² Former Instructor of Soils, Department of Agronomy, Iowa State College, Ames, now Associate Professor of Agronomy at the A. & M. College of Texas, College Station, Texas; and Professor of Soils, Iowa State College, Ames, Iowa, respectively.

Received for publication May 15, 1953.