Presented by Don Flaten and Amy Mangin, University of Manitoba
New high-yielding spring wheat varieties being grown across the prairies challenge traditional nitrogen (N) strategies for profitable production of high yielding milling quality wheat. Don and Amy will discuss recent research in Manitoba that evaluated the most effective and efficient combinations of N application rates, timings and sources for spring wheat production at yields up to 130 bushels per acre. The project also evaluated flag leaf N, NDVI canopy reflectance, chlorophyll meters and soil nitrate as tools to predict yield and protein sufficiency during the growing season. In addition, this study evaluated several innovative soil tests for their ability to predict the amount of organic soil N released by mineralization during the growing season.