Opportunities for Increased Nitrogen Use Efficiency in Wheat for Forage Use.

ABSTRACT: Wheat is a major cool-season forage crop in the southern United States. The objective of this study is to understand the effect of nitrogen (N) fertilization on wheat biomass yield, quality, nitrogen use efficiency (NUE), and nitrogen nutrition index (NNI). The experiments were conducted in a greenhouse and a hoop house in a split-plot design, with three replications. Twenty wheat cultivars/lines were evaluated at four N rates (0, 75, 150, and 300 mg N.kg-1 soil) in the greenhouse and (0, 50, 100, and 200 mg N.kg-1 soil) in the hoop house. In general, high-NUE lines had lower crude protein content than the low-NUE lines. None of the cultivars/lines reached a plateau for biomass production or crude protein at the highest N rate. The line × N rate interaction for NUE was not significant in t

SUBMITTER: Sharma N 

PROVIDER: S-EPMC7764361 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature