Large Urea Granules for Broadcast Application in Perennial Forage Grasses

Large and regular sized urea applied with and without urease and nitrification inhibitors, surface applied, or banded, in fall or spring, for perennial forage grasses.

IPNI-2012-CAN-AB30

Engle, R 2008. Study provides a first look at ammonia volatilized from surface applied urea. http://www. montana. edu/cpa/news/nwview. php?article=6007. Engel, R, 2009. On-farm study measures ammonia volatilization losses from urea fertilizer. http://www. montana. edu/cpa/news/nwview. php?article=7286. Goos R. J. and B. E. Johnson. 1993, Effect of urea pellet size and dicyandiamide on residual ammonium in field micro plots. Commus. Soil Sci. Plant Anal. , 24 (5&6), 397-409. Mahli S. S. and M. Nyborg. Read more


Year of initiation:2012
Year of completion:2013
Map:

Interpretive Summary

2013

Urea is the most common N fertilizer for surface broadcast applications for perennial forage grass production in the Northern Great Plains (NGP). There is interest to know whether various N fertilizer additives, specifically a urease inhibitor alone or in conjunction with a nitrification inhibitor, can increase N availability and the production of forage grasses. There is also interest in whether larger urea granules (e. g. 0. 5 in.

2012

This research was conducted using a cool season perennial grass pasture. The grasses have been established for 10 years, and were part of an original pasture rejuvenation project conducted by the Chinook Applied Research Association in cooperation with the land owner. The 2012 growing season was characterized as being close to average in temperature, but much more moist.


Updates & Reports

2012

References

2012

Project Description


Project Leader

Dianne Westerlund, Chinook Applied Research Assn


Project Cooperators

None


IPNI Staff

T. Jensen


Location

Americas \ Northern America \ CAN \ Alberta


Topics

4r place, 4r source, 4r time, nutrient management

forage

Nitrogen (N)