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Fluid Journal : Fluid Journal 1999-2001
2 Fluid Journal Winter 2001 1. Compile data that will form the basis of planning and decision-making, such as soil grid tests, yield monitor data, soil surveys, and yield goals. This information is critical to establish the baseline for the nutrients that should be applied on each field in order to achieve agronomic and environmental objectives. 2. Use appropriate data management software to analyze the compiled data. Include recommendations from local agronomists, incorporate lagoon and pit testing results, and budget in nutrients required to achieve yield goals. Software should be programmed to generate an application map for use with the on- board controller, which will indicate the precise amount of manure to be applied across the field as part of the nutrient management plan for that specific field. 3. Apply manure accurately and efficiently to the field. Select toolbars and injectors that accurately address cropping area needs-from deep to minimum disturbance injection, and from heavy-duty to minimum residual disturbance incorporation. Because some regions require injection or incorporation while others need only surface application, each toolbar and injector should be designed for quick, easy attachment. If needed, the nutrient management system should be able to quickly and efficiently place manure into the subsoil to minimize nitrogen volatilization and odor, plus reduce the risk of runoff and eliminate the need of second-pass incorporation. The on- board controller should be adaptable with all these components and enable the application of manure at variable or pre-selected rates with a coefficient of variation of less than 5 percent, regardless of vehicle speed. It should be capable of accurately controlling up to 200 different product rates, which means the amount of manure applied equals the crop requirement or maximum nutrients allowed for each part of the field. 4. Generate an electronic record of what, when, and where the manure was applied. This "as-applied" report is a historical record of what was actually applied rather than what was intended. It is automatically regenerated by the on-board controller and used within the software to create a permanent record of the application as well as reanalyze, if necessary, the rates of supplemental commercial fertilizers that will be needed to achieve yield goals. Attendto stewardship The public has a growing awareness about the connection between animal waste disposal as it may relate to crop production and contamination of water resources. In response, state and federal agencies, most notably the EPA, have become more aggressive in regulating nutrients applied in cropping regions. The clear trend is that there will be an ever- increasing demand for technologies and processes that are earth-friendly. The good news is that accomplishing earth- friendly manure nutrient management can be cost-effective, efficient, and easy. Jorgensen is manager of Manure Applications Systems at Ag-Chem Equipment Co., Inc. of Minnetonka, MN.
Fluid Journal 1996-1998
Fluid Journal 2002-2004