Evidence for magnesium-phosphorus synergism and co-limitation of grain yield in wheat agriculture.

ABSTRACT: Modern crop production is characterized by high nitrogen (N) application rates, which can influence the co-limitation of harvested yield by other nutrients. Using a multidimensional niche volume concept and scaling exponents frequently applied in plant ecological research, we report that increased N and phosphorus (P) uptake in a growing wheat crop along with enhanced grain biomass is associated with more than proportional increase of other nutrients. Furthermore, N conversion efficiency and grain yield are strongly affected by the magnesium (Mg) to P ratio in the growing crop. We analyzed a field trial in Central Sweden including nine wheat varieties grown during two years with contrasting weather, and found evidence for Mg co-limitation at lower grain yields and P co-limitation at higher

SUBMITTER: Weih M 

PROVIDER: S-EPMC8079383 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature