Studies in the variation of soil reaction. II. Seasonal variations at Barooga, NSW

Abstract

The seasonal and spatial contributions to the variation in reaction of two Australian soils have been examined. Experiments described show seasonal effects to be slight and spatial variation contributions large. Exchangeable sodium from soluble salt variations is shown to give rise to the differences in reaction upon one soil while calcium and magnesium relationships may, among other factors, be responsible for those on the other.