Supplemental irrigation is the delivery of additional water above what is received through precipitation to encourage plant growth and production.
Hops are a high value crop, with both yield and quality affected when subjected to water stress. Therefore, in many climates including the Mid-Atlantic region of the U.S., supplemental irrigation is required for economical productions of hops. However, there are many factors that affect the amount and frequency of supplemental irrigation required, including the climate, soil characteristics, and plant-specific characteristics such as stage of development.
This publication provides an overview of the many factors that influence the irrigation management decisions for hops, as well as a guide to developing an irrigation program for the commercial hop yard.