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Filtering by: Subject Urea as fertilizer Creator Sullivan, Dan M.

Measuring ammonia loss using field-scale and laboratory techniques

Creator:

Heinrich, Aaron and Sullivan, Dan M.

Abstract:

Following the surface application of urea to soil, there is the potential for nitrogen (N) loss from ammonia (NH3) volatilization until sufficient rain or irrigation has moved it into the soil. Many studies measuring NH3 loss have used laboratory and microplot field studies. The limitation of these techniques is that...

Resource Type:

Presentation

Full Text:

330 ft Passive flux field results • <2% of applied fertilizer urea was lost as NH3 • Agrotain did
Measuring ammonia loss using field-scale and laboratory techniques

Creator:

Heinrich, Aaron and Sullivan, Dan M.

Abstract:

Following the surface application of urea to soil, there is the potential for nitrogen (N) loss from ammonia (NH3) volatilization until sufficient rain or irrigation has moved it into the soil. Many studies measuring NH3 loss have used laboratory and microplot field studies. The limitation of these techniques is that...

Resource Type:

Conference Proceeding

Full Text:

research on problems in the use of urea as a nitrogen fertilizer Nutrient cycling in Agroecosystems. 42:21
Biosolids Fertilization for Dryland Pacific Northwest Wheat Production

Creator:

Sullivan, Dan M., Bary, A. I., Kropf, J. A., and Granatstein, D. M.

Abstract:

The fertilizer value of anaerobically-digested, dewatered biosolids in dryland cereal cropping systems was evaluated at six locations in central and eastern Washington (25 to 35 cm annual precipitation zone). Biosolids were applied at rates of 3 to 20 Mg/ha (approximately 150 to 900 kg N/ha). We measured increases in soil...

Resource Type:

Conference Proceeding

Full Text:

locations as main plots and fertilizer treatments as subplots. Statistical analyses within a location