Sarah completed her B.S.degree in Agriculture Economics from Purdue University in December of 2013.
yields continue to increase at a declining rate despite higher research
investment and more intensive farm management, it is increasingly important to
understand how we can best manage our farm inputs to maximize grain yield.
Nitrogen has been one of the key nutrients in the management conversation
because it represents the largest share of a grower’s fertilizer costs and it
is one the most soil-mobile nutrients utilized in agriculture, leading to environmental
interested in ascertaining how we can increase yields of current hybrids
through improved nutrient management, particularly nitrogen. My current
research focuses on the potential benefit of ensuring nitrogen availability in
the soil during the reproductive stages by applying a supplemental rate of
nitrogen late in the growing season (V12-V14). I am also interested in the
change over time in how much nitrogen is taken up post-silking in modern
hybrids compared to hybrids of previous eras, and how we can apply these
changes to improve current management. To investigate these questions we are
utilizing both current hybrids and hybrids released 20 years ago, and
conducting intensive biomass sampling and phenotype measurements to quantify
how these hybrids respond to different nitrogen treatments.