Trends in cotton yields and yield variability in the Texas High Plains: an irrigated versus dryland comparison

摘要

This paper investigates the 30 year trends in cotton yield and yield variability for three crop reporting districts in the Texas High Plains. Irrigated and dryland yield comparisons are made between the three crop reporting districts. Cotton yields significantly increased on both irrigated and dryland acreage in two of the three districts. In all districts, irrigated yield variability increased over time but dryland yield variability has remained constant.