Sustainable Agriculture Practices as a Driver for Increased Harvested Cropland among Large‐Scale Growers in Arizona: A Paradox for Small‐Scale Growers

Abstract Extreme climate variability is a major factor threatening crop production in Arizona State. However, limited information exists on how growers are adapting with land‐use practices. Using data from the National Oceanic and Atmospheric Administration and the Agricultural Census (2012 and 2017) of the US Department of Agriculture, this study investigates trends of land‐use practices among small‐ and large‐scale growers and their possible effects on harvested cropland. From 2012 to 2017, there are reductions in total farmlands (−0.5%) and vegetable production lands (−4%) with varying temperatures, precipitation, and drought severity index. However, harvested crop‐ and vegetable land increased by 3% and 11%, respectively, which was mainly influenced by large‐scale growers. This coincided with an increase in sustainable land‐use practices such as conservation agriculture no‐till (103%), reduced tillage (71%), and cover cropping (123%) which are most popular among large‐scale growers. Manure application also increased by 30%. However, there were reductions in other practices such as intensive tillage (−9%), use of commercial fertilizers (−0.2%), nematicides (−63%), and chemical diseases control (−16%). Unfortunately, non‐sustainable practices (irrigation, insecticide, and herbicide application increased by 27%, 39%, and 10%, respectively. This study reveals potential benefits of sustainable agricultural practices in Arizona and a need for increased adoption among small‐acreage growers.