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1033. Bracken, A.. no date. Dry farming.. USU (Logan) Course notes for Agronomy 116.
Describes climatic factors that cause dry lands, the dryland regions of the world, soils of dry areas, organic matter and N relations. Dry farms in northern UT have lost 16% of soil N and 22% of SOM from first foot of soil, after 44 years of cropping.