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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:: Hybrids Measuring Ammonia Loss Using Field-scale And Laboratory Techniques Aaron Heinrich and Dan M

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:: . Reno, NV. MEASURING AMMONIA LOSS USING FIELD-SCALE AND LABORATORY TECHNIQUES Aaron Heinrich and

Creator:: Sullivan, Dan M. and Heinrich, Aaron
Abstract:: The market for organic vegetables is increasing. As conventional farmers transition fields to organics to meet this demand, there is a need for better organic nutrient management guidance, especially for nitrogen (N). Organic N management is more challenging than conventional N management due to a higher level of uncertainty surrounding...
Resource Type:: Technical Report
Full Text:: -PI: Aaron Heinrich, Dept. of Horticulture Organization: Oregon State University Telephone

Creator:: Sullivan, Dan M., Heinrich, Aaron, and Peachey, Ed
Abstract:: Urea is a common nitrogen fertilizer for sweet corn production. This two year project evaluated commercially available urea additives for their potential to provide crop production and environmental benefits. Specifically, experiments were designed to evaluate the efficacy of urea fertilizer products containing a urease inhibitor (Agrotain Ultra), or nitrification inhibitors,...
Resource Type:: Technical Report
Full Text:: ) PI: Dan M. Sullivan, Dept. Crop & Soil Science Co-PI: Aaron Heinrich, Dept. of Horticulture Co-PI

Creator:: Peachey, Ed, Sullivan, Dan M., and Heinrich, Aaron
Abstract:: The overall objective of this multi-year project is to maximize nutrient use efficiency without compromising bean yield and quality. This year’s project objectives were to: 1) evaluate crop response to P fertilizer at current soil P test levels in grower fields; 2) generate phosphorus (P) potassium (K), and nitrogen (N)...
Resource Type:: Technical Report
Full Text:: @oregonstate.edu 4017 Ag & Life Sciences Bldg. Corvallis, OR 97331 Co-PI Aaron Heinrich OSU Department

Creator:: Sullivan, Dan M., Heinrich, Aaron, and Peachey, Ed
Abstract:: Enhanced efficiency fertilizer (EEF) technologies have the potential to improve the crop N use efficiency (NUE) as well as minimize negative environmental losses compared to conventional fertilizers. The EEF fertilizer products consist of urea plus additives (to inhibit N loss). The major pathways for N loss in our sweet corn...
Resource Type:: Technical Report
Full Text:: sweet corn (2014) PI: Dan M. Sullivan, Dept. Crop & Soil Science Co-PI: Aaron Heinrich, Dept. of

Creator:: Heinrich, Aaron, Peachey, Ed, and Sullivan, Dan M.
Abstract:: Although Oregon is the #2 snap bean producer in the US, yield of snap beans per acre is greater in Oregon than any other state (USDA NASS 2012). Despite the scale and importance of snap bean production in Oregon, almost no research has been done on phosphorus (P) utilization over...
Resource Type:: Technical Report
Full Text:: Commission Predicting Phosphorus Needs in Snap Beans Aaron Heinrich, Ed Peachey, and Dan M. Sullivan

Creator:: Heinrich, Aaron, Sullivan, Dan M., and Peachey, Ed
Abstract:: The enhanced efficiency (EEF) products we tested in our study hold the potential to increase the nitrogen utilization efficiency of sweet corn as well as reduce nitrate leaching when all N fertilizer is applied before planting. However, this potential is limited by weather (i.e. large early season rainfall events), irrigation...
Resource Type:: Technical Report
Full Text:: Commission Improving fertilizer P and N use efficiency in sweet corn Aaron Heinrich, Dan Sullivan, and

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