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Agronomy

Agronomy

New! 
The Integrated Erosion Tool (IET) combines the current wind and water erosion prediction technologies into a single interface within Customer Service Toolkit and works as a plug-in to ArcGIS.  The IET is unique by combining wind and water erosion into one interface, and utilizing databases housed within the Land Management Operations Database (LMOD).  Through the use of LMOD, a user will no longer need to manage databases for the erosion prediction tools.  LMOD is the agency’s single authoritative database for erosion prediction databases.  Soils data will utilize the Soil Survey Geographic Database (SSURGO).  Both SSURGO and LMOD will be cloud-based services.

Click here to download the IET Add-In.

Click here to download the IET Installation Instructions

References


Agronomy Information in eFOTG 

  • Crop Management Zone Maps (Sec I)
  • Precipitation Maps (Sec I)
  • R/Req Map (Sec I)
  • Highly Erodible Land Lists (Sec II, Soils Information)
  • Planning Criteria (Sec III)
  • Reference Conservation System Guidesheets (Sec III)
  • Current  Agronomic Practice Standards, Job Sheets, Statements of Work (Sec IV)
    • USLE2 Resources
      • RUSLE2 is an upgrade of the text-based RUSLE DOS version 1. It is a computer model containing both empirical and process-based science in a Windows environment that predicts rill and interrill erosion by rainfall and runoff. The USDA-Agricultural Research Service (ARS) is the lead agency for developing the RUSLE2 model. The ARS, through university and private contractors, is responsible for developing the science in the model and the model interface.
  • NRCS RUSELE2 Website
  • Purdue RUSELE2 Website
  • Using RUSELE2 in Organic Systems 
  • Users Guide‚Äč
  • Tillage Equipment Identification PowerPoint Presentations

Wind Erosion

The Wind Erosion Prediction System (WEPS) combines the latest in wind erosion science and technology with databases and computers, to develop what should be a significant advancement in wind erosion prediction technology. WEPS incorporates this new technology and is designed to replace the Wind Erosion Equation WEQ method of wind erosion prediction used by USDA-NRCS.

WEPS is a process-based, continuous, daily time-step model that simulates weather, field conditions, crop growth, hydrology and wind erosion.   Saltation, creep, suspension, and PM10 components of wind erosion are simulated and reported for a crop system. WEPS is designed to be used under a wide range of land use conditions in the U.S. and easily adapted to other parts of the world.

Follow this link to the NRCS WEPS website to download the software, and link to databases and training materials.

Soils

Follow this link for a list of soils laboratories successfully meeting the requirements and performance standards of the North American Proficiency Testing Program, Performance Assessment Programj (NAPT-PAP) under the auspices of the Soil Science Society of America.  

Follow this link for a list of certified manure testing laboratories. Nutrient Transport Risk Assessment

In Oregon, the Nitrogen Leaching Index and the Phosphorus Index are used to assess the potential for nutrients to move off site (through leaching and runoff), on all land uses where fertilizers/organic amendments are applied.  

The Phosphorus Index

The Phosphorus Index is used to assess the potential for P to move off site.  It evaluates transport and source factors.  Where manures are used, the resulting risk category dictates whether the manure application will be nitrogen-based or phosphorus-based.   Oregon Technical Note #26, dated June 2013, describes each component of the Phosphorus Index in detail.  

Technical Note #26, PDF
Phosphorus Index- Example West Side, PDF
Phosphorus Index- Worksheet West Side, PDF
Phosphorus Index- Example East Side, PDF
Phosphorus Index- Worksheet East side, PDF

The Nitrogen Leaching Index

The Nitrogen Leaching Index is used to assess the potential for nitrogen to move off-site through leaching.  It is a report available in Web Soil Survey (“Nitrate Leaching Potential” under Land Management in Soil Data Explorer) or as a Soil Interpretation that can be queried from the Access Soils Database (for NRCS employees).  High nitrate leaching potentials indicate a potential resource concern to be addressed in the conservation planning process.

Integrated Pest Management Resources

‚ÄčOrganic Resources

Click here to go to the NRCS Organic Farming page with links to NRCS Organic publications and other resources

Food Safety

Click here to go to the FDA’s Food Safety and Modernization Act (FSMA) page for information and resources.

Contact

Denise Troxell
Agronomist
Phone: 503-414-3232
Email: Denise.Troxell