Effect of Nitrogen and Seeding Rate on Plant Height, Seed Maturity and Seed Yield of Quinoa and Hulless Barley Grown in No-till in the Palouse.

Quinoa (Chenopodium quinoa) and hulless barley (Hordeum vulgare) are important crops with versatile application in food productions. To date, minimal research has been conducted on the agronomy of quinoa and hulless barley with nitrogen application rate and seeding rate treatments in the dryland wheat-based cropping systems of the Palouse bioregion of the U.S. The objectives of this study were to evaluate agronomic traits of quinoa and hulless barley with five different N application rates: 0, 62, 96, 130 and 164 kg/ha and three seeding rates: 5.6, 11 and 17 kg/ha for quinoa and 2.5, 3.1 and 3.75 mil/ha for hulless barley grown in no-till farms. One variety of quinoa (Jesse) and two varieties of barley (Julie and Havener) were grown under no-till farms in Genesee, ID and Almota, WA in Summer 2016. N and seeding rates had significant effects on yield of quinoa (p<0.05). N rate had a significant effect on barley yield, however, seeding rate did not result in differences in barley yield. There were varietal differences in barley, with Havener performed best in both locations and across all treatments. This experiment is being repeated in this Spring 2017. In our next steps, seeds from all treatments will be tested for micronutrient concentration, protein content, amino acid content (quinoa) and beta-glucan content (barley).