Variety and N Management Effects on Grain Yield and Quality of Winter Barley

Abstract

Winter malting barley (Hordeum vulgare L.) is a potential alternative crop for the dryland region of the Pacific Northwest. Nitrogen fertilization can increase grain yield but may also increase lodging and grain protein and reduce test weight. The objectives of this research were to determine the effect of N application rate and timing on grain yield and quality of winter feed and malting barley varieties. Field trials were conducted at Pendleton, OR (17 inches annual precipitation) and Moro, OR (12 inches annual precipitation). Nitrogen was applied at 0, 50, 100, or 150 lb N per acre in the fall and at 0 or 50 lb N per acre in the spring at Pendleton and at 0, 30, 60, or 90 lb N per acre in the fall and at 0 or 30 lb N per acre in the spring at Moro. Nitrogen fertilization increased grain yields at Pendleton to a maximum of 5,800 lb/acre in 2001 and 5,200 lb/acre in 2002 and at Moro to a maximum of 3,000 lb/acre. Nitrogen fertilization increased grain protein and reduced test weights. Yields of the advanced lines of malting barley were about 90% of the yields of feed type barley varieties. Spring N applications did not increase grain yield or protein more than fall N applications.

Canopy reflectance informs in‐season malting barley nitrogen management: An ex‐ante classification approach

“…Baethgen, Christianson, and Lamothe (1995) found that N fertilizer applications split between pre-plant and the end of tillering supported the greatest yields in a trial with 11 field experiments and two varieties of two-row spring malting barley. In an N rate and timing trial conducted on winter malting barley varieties in the Pacific Northwest, Castro et al (2008) found that pre-plant and a late-tillering N fertilizer application affected grain yield and protein to the same extent. These studies and the N fertilization guidelines in regional extension materials are usually qualified based on the expected yield and climate of an area (Baethgen et al, 1995;Castro et al, 2008;Franzen & Goos, 2019;Jacobsen, Jackson, & Jones, 2003).…”

“…In an N rate and timing trial conducted on winter malting barley varieties in the Pacific Northwest, Castro et al (2008) found that pre-plant and a late-tillering N fertilizer application affected grain yield and protein to the same extent. These studies and the N fertilization guidelines in regional extension materials are usually qualified based on the expected yield and climate of an area (Baethgen et al, 1995;Castro et al, 2008;Franzen & Goos, 2019;Jacobsen, Jackson, & Jones, 2003). However, even within a region, there is both spatial and temporal variation in yield and quality potential.…”

“…In an N rate and timing trial conducted on winter malting barley varieties in the Pacific Northwest, Castro et al. (2008) found that pre‐plant and a late‐tillering N fertilizer application affected grain yield and protein to the same extent.…”

“…These studies and the N fertilization guidelines in regional extension materials are usually qualified based on the expected yield and climate of an area (Baethgen et al., 1995; Castro et al., 2008; Franzen & Goos, 2019; Jacobsen, Jackson, & Jones, 2003). However, even within a region, there is both spatial and temporal variation in yield and quality potential.…”

Agronomic Management of Malting Barley and Research Needs to Meet Demand by the Craft Brew Industry

“…3 and 4). Barley grain protein increases with increasing N application rate because barley plants continue to use available N even after yield requirements are met (Batchelder, 1952;Reisenauer and Dickson, 1961;Jackson et al, 1962;Zubriski et al, 1970;Pomeranz et al, 1976;McGuire et al, 1979;Weston et al, 1993;Castro et al, 2008;Sainju et al, 2013).…”