Dry-land farming is a system of land use, crop management, and timing of operations that are designed to cope with the conditions of climate and rainfall of a semiarid land. Experiments began on dry-land techniques as early as the 1860s and the methods became well-known in the Great Plains by the end of the 1880s. A major component of dry farming, which is a term (along with dry-land farming) of western American origin, is the conservation of soil moisture during dry weather by special methods of tillage and plant adaptation. It is not farming without moisture, but farming where moisture is insufficient; often permitting agriculture to be practiced successfully in areas where rainfall is less than ten to twelve inches.
Williams, Jerry L.. "Dry-Land Farming." (2020). https://digitalrepository.unm.edu/homestead_pubs/11