Evaluation of Ammonium Sulfate Nitrate in Virginia Sweet Corn Production

IPNI-2009-USA-VA23

The current N management regime recommended for Virginia sweet corn production includes a total of 125 to 150 lbs. N/acre in two splits. For this study, we will apply ½ of the nitrogen pre-plant incorporated and the remaining ½ N rate in band treatments when corn reaches 12 to 18 inches in height. Methodology Test Material: Sulf-N 26 (26-0-0-14S) Soil: Bojac sandy loam (65% sand, 25% silt, 10% clay; 0. 75% organic matter). Read more


Year of initiation:2009
Year of completion:2012
Map:

Interpretive Summary

Virginia farmers grow over 3,000 acres of fresh market sweet corn. They are interested in exploring sources and rates to improve N use efficiency. This trial compared three N sources (urea-ammonium nitrate, ammonium nitrate, and ammonium sulfate-nitrate) at three rates. The first two N sources were compared with and without S, applied as gypsum, at a rate designed to supply the equivalent amount of S provided by ammonium sulfate-nitrate (65 lb/A).

Virginia farmers grow over 3,000 acres of fresh market sweet corn. They are interested in exploring sources and rates to improve N use efficiency. This trial compared three N sources (urea-ammonium nitrate, ammonium nitrate, and ammonium sulfate-nitrate) at three rates. The first two N sources were compared with and without S, applied as gypsum, at a rate designed to supply the equivalent amount of S provided by ammonium sulfate-nitrate (65 lb/A).

Virginia farmers grow over 3,000 acres of fresh market sweet corn. They are interested in exploring sources and rates to improve N use efficiency. This trial compared three N sources (urea-ammonium nitrate, ammonium nitrate, and ammonium sulfate-nitrate) at three rates. The first two N sources were compared with and without S, applied as gypsum, at a rate designed to supply the equivalent amount of S provided by ammonium sulfate-nitrate (65 lb/A).

Virginia farmers grow over 3,000 acres of fresh market sweet corn. They are interested in exploring sources and rates to improve N use efficiency. This trial compared three N sources (urea-ammonium nitrate, ammonium nitrate, and ammonium sulfate-nitrate) at three rates. The first two N sources were compared with and without S, applied as gypsum, at a rate designed to supply the equivalent amount of S provided by ammonium sulfate-nitrate (65 lb/A).

↑ Show less ↑

Updates & Reports

2013

2013 Annual Report

2010

Project Description


Project Leader

Mark Reiter, Virginia Tech


Project Cooperators

None


IPNI Staff

T. Bruulsema


Location

Americas \ Northern America \ USA \ Virginia


Topics

4r source

maize

Nitrogen (N), Sulfur (S)