Abstract:
Fertilizing hops improves yield and quality by supplying the crop with ample nutrition in advance of demand. Producers must combine this
goal with production costs and environmental stewardship. Fertilization should be based on yield and quality response, experience, and economics. Unfortunately, limited experimental data exist linking modern cultural practices, current varieties, and hop yield in Oregon. The recommendations given in this guide are based on Oregon research, publications from other hop producing areas, and grower experience.
This fertilizer guide provides general information for hop fertilization. Growers, with the assistance of county Extension agents and field representatives, should consider the fertilizer needs of individual hop yards. Routinely sample soil and petioles (stems) for analysis. Record soil and tissue data as well as other management practices, weather records, yield, quality, disease problems, and fertilizer rates and timing. Long-term production records then can be compared to changes in fertilization or other practices. Fertilization is only one practice a grower must consider in hop production. The fertilizer recommendations in this guide assume adequate weed, insect, and disease control, and timely irrigation.
