We use cookies on our website. Some are necessary for the operation of the website. You can also allow cookies for statistical purposes. You can adjust the data protection settings or agree to all cookies directly.
Data Protection Declaration
Imprint
Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 3 (StaPlaRes)
Project
Project code: 2818102415
Contract period: 25.07.2016
- 30.06.2020
Budget: 383,120 Euro
Purpose of research: Experimental development
The R&D project STAPLARES investigates and evaluates innovative systems of urea fertilization with the intention to figure out most sustainable strategies for German sites. The project deals with two frequently mentioned options for NH3 mitigation following urea fertilization: (1) Stabilization: A combined use of urease and nitrification inhibitors is seen to reduce N losses significantly avoiding pollution swapping and providing further agronomic benefit. (2) Subsurface placement: A special side dressing technology injecting granular urea in combination with a mechanic weed control is seen to reduce NH3 emissions and, in addition, to improve soil properties and crop development. These effects will be examined in a three-year crop rotation under practice related conditions. Accompanying tests in laboratories, green houses and on field sites complete the crop rotation trials to validate the findings and to clarify crucial N converting processes. Key objectives are the increase of NUE and the reduction of N loss. Calculations of field-related N balances as well as product-related life cycle assessments are intended to ensure a proper scientific validation of the compared urea fertilization technologies. A timely implementation of results in the agricultural practices is planned. Thus the R&D project will make a significant contribution to develop optimum strategies for a resource efficient and environmentally sound urea fertilization. The R&D project STAPLARES will provide a systematic approach to evaluate two innovative technologies of urea fertilization: (1) the combined use of urease and nitrification inhibitors; (2) injection of urea. These technologies will be compared with the common standard (broadcast application). The analysis includes determinations of N losses and yield parameters, calculations of N uptake and N use efficiency and the valuation of technology based on N balance and Life Cycle assessment. Six working packages (WP) were defined to organize the project work corresponding to scientific and logistic aspects: Key element of the experimental design is an agronomic crop rotation (WP 1) with integrated NH3 and N2O measurements (WP 2 and WP 3) performing the different urea fertilization technologies. Corresponding greenhouse, lab and lysimeter tests will show impacts of N stabilization and injection on yield, N uptake, NH3 loss and NO3- leaching under defined conditions. In addition, data sets of field, greenhouse and lab tests will be used in modeling approaches describing N loss processes (WP 4). Calculations of NUE, emission factors (NH3, N2O) and three-year N balances as well as life cycle assessments (WP 5) will be based on the findings in WP 1 to 4. Finally, STAPLARES provides educational and consulting instruments to promote the transfer and implementation of outcomes from WP 1 to 5 in the agricultural practice (WP 6). Assuming positive results and a stable economic and political framework, a commercial utilization of the tested innovations is intended. A high quality of project management and a continuous exchange between all project partners is guaranteed by at least two project meetings per year.
Section overview
Subjects
- Plant Nutrition
- Resource management
Framework programme
Funding programme
Excutive institution
Funding institution
Project management agencies
Associated projects: StaPlaRes
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 6
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 1
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 2
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 4
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 5
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 7
- Collaborative project: Nitrogen Stabilization and Subsurface Placement as Innovative Technologies Enhancing the Resource Efficiency of Fertilized Urea - subproject 8
