Large Urea Granules for Broadcast Application for No-till Cropping - University of Alberta, Ellerslie, AB

Large and regular sized urea applied with and without urease and nitrification inhibitors, surface applied in fall or spring under no-till cropping.

IPNI-2009-CAN-AB27

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:2009
Year of completion:2013
Map:

Interpretive Summary

It is generally accepted in the Canadian prairies that the use of so called “double-shoot” air-drill planting equipment capable of planting and banding fertilizer in one field operation is the most effective way to apply N fertilizer. Granular urea is the most widely used N fertilizer in this type of operation. The urea is sideband placed (1. 5 in. to the side and 1. 5 in. deeper) than the bottom of the seed furrow.

This experiment with related research at other locations is being done to compare the effectiveness of broadcast urea fertilizer compared to the common standard of side-banded urea at planting. There is a trend in some areas to use broadcast N applications in no-till or direct seeded cropping as a way to save time and speed up planting. To help reduce the chance of losses a few technologies are being evaluated.

This is the third year of an experimental study that was initiated to evaluate the potential use of two technologies for broadcast urea granules prior to no-till planting of small grain cereals in the Northern Great Plains region of North America. This is seen as a possibility to allow N application with less energy required during planting compared to banding N at planting.

This experimental study was initiated to evaluate the potential use of two technologies for broadcast urea granules prior to no-till planting of small grain cereals in the Northern Great Plains region of North America. This is seen as a possibility to allow N application with less energy required during planting compared to banding N at planting. The two technologies being evaluated are: 1) the size of the urea granules, comparing regular size granules (approximately 3 mm, or 1/8 in.

Spring wheat was grown for the N experiment at Ellerslie, Alberta, but cool and dry conditions experienced Research in Alberta and North Dakota has supported the use of urea granules larger than regular, ag-grade urea as a means of increasing crop yield and reducing the potential for denitrification losses.

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Updates & Reports

2009

References

2009

Project Description


Project Leader

Dick Puurveen, University of Alberta


Project Cooperators

None


IPNI Staff

T. Jensen


Location

Americas \ Northern America \ CAN \ Alberta


Topics

4r place, 4r source, 4r time, nutrient management, soil fertility and productivity

barley

Nitrogen (N)