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Creator:: Sullivan, Dan M., Cogger, Craig G., Bary, Andrew I., and Myhre, Elizabeth
Abstract:: Credits for available N from past manure applications are often used in nutrient management planning. However, it is difficult to verify the accuracy of these credits. The major objective of this study was to estimate long-term effects of manure application on soil N mineralization. Specific objectives were to: 1) estimate...
Resource Type:: Conference Proceeding and Presentation
Full Text:: non-manured soils D. M. Sullivan*, A. I. Bary, C. G. Cogger and E. A. Myhre. D. M. Sullivan

Creator:: Sullivan, Dan M., Bary, Andrew I., Cogger, Craig G., and Shearin, Todd E.
Abstract:: Predicting agronomic rates is important to derive optimum economic and environmental benefits from biosolids fertilizer applications. We conducted this research to 1) evaluate dryland wheat response to biosolids applications over a range of climate zones in the Pacific Northwest and 2) compare agronomic application rates predicted from yield curves with...
Resource Type:: Conference Proceeding
Full Text:: : Sullivan, D., A. Bary, and C. Cogger. 2007. Agronomic biosolids application rates across a range of

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:: (18-36) 24 (22-26) 1- 1:2 soil to water; 2- 1.7 x total C by combustion; 3- hydrometer method; 4- by

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