Alfalfa intercropping maintains intermediate wheatgrass grain yield relative to nitrogen fertilization across site conditions and stand ages
Intermediate wheatgrass (IWG; Thinopyrum intermedium) is a promising perennial grain crop, but yield instability remains a major challenge. We compared effects of nitrogen fertilization and intercropping with alfalfa (Medicago sativa L.) on IWG biomass, grain yield, and root traits across three stand ages at two nearby sites in eastern Missouri differing in soil properties (Planthaven Farms and…
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