Agri-View article highlights research on nitrogen use efficiency
A recent article in Agri-View highlights key research findings on nitrogen crediting from cover crops, use of polymer-coated and nitrification inhibitors, and managing nitrogen on tile drained land. Research was presented at the 2013 Soil, Water, and Nutrient Management Meetings and presentations will be made available shortly.
Full article can be found here.
Nitrogen efficiency: Products, cover crops can improve system
Efficient use of nitrogen in corn production makes sense.
That was evident from the big audience UW-Madison soil scientist Matt Ruark had at Corn-Soy Expo in Wisconsin Dells when he addressed the topic, including use of controlled release fertilizers and nitrogen stabilizers and cover crops that supply nitrogen to the next crop.
Noting that nitrogen use efficiency has been on a steady climb upward since the mid-1970s, Ruark still thinks growers should be tracking their nitrogen use efficiency by simply dividing grain produced by nitrogen applied, field-to-field and year-to-year.
The number goes up if yield increases with the same nitrogen rate, yield is maintained with less nitrogen, or best yet, yield goes up with less nitrogen.
Full article can be found here.