NRCS FOTG Update: Notice WI-80

WISCONSIN FIELD OFFICE TECHNICAL GUIDE

450-11-TECHNICAL GUIDE

FOTG NOTICE WI-80

SUBJECT:  WISCONSIN FIELD OFFICE TECHNICAL GUIDE

Purpose.  Revisions to Wisconsin Conservation Practice Standards and Specifications

Explanation of Changes.

Section IV: Conservation Practice Standards and Specifications:

Clearing and Snagging (Code 326) – The changes were made to provide better clarity and include the use of active voice and the removal of all occurrences of the word “shall.” The References section remains unchanged; however, one of the references, 210-NEH, Part 654, “Stream Restoration Design,” now appears in the “Considerations” section, where it specifically identifies Technical Supplement 14E of this reference for use in determining the forces acting on woody debris and the necessary anchoring.

 

Contour Orchard and Other Perennial Crops (Code 331) – Removed wind erosion as one of the purposes and the technology addresses only sheet and rill erosion from water. Provided edits to the purposes to align with the NRCS list of natural resource concerns. Added the criteria for additional temporary erosion control measures on sites that are disturbed. Reduced the allowable contour row grade from 10% to 4%. Added criteria for inward sloping benches to improve sediment trapping on the slopes. Added minor edits throughout the standard to improve clarity.

 

Cross Wind Ridges (Code 588) –Revised the definition to ridges formed by tillage, planting or other operations and aligned perpendicular to prevailing wind direction during critical wind erosion periods and revised the purpose to reduce soil particulate emissions to the air to reduce soil particulate emissions effecting air quality. Added the implementation requirement document to the specifications and plans.

 

Cross Wind Trap Strips (Code 589C) – Removed the purpose to induce windborne sediment deposition as this is covered under the purpose to reduce soil erosion and induce windblown sediment deposition. Deleted the purpose to provide food and cover for pollinators and wildlife. In the general criteria for the practice, changed the language from using university extension guides to NRCS approved technical references for seeding and establishment.

 

Field Border (Code 386) – Revised the condition where the practice applies to cover only existing cropland and pastureland and deleted the purpose to manage pest populations. Added the implementation requirement document to the specifications and plans.

 

Fish Raceway or Tank (Code 398) – The purpose was refined, the criteria was modified, and the references were updated. Other changes improved the clarity of the language used in the standard.

 

Herbaceous Weed Control (Code 315) – Minor updates to bring the WI standard current.

 

Mulching (Code 484) – Deleted the purpose to moderate soil temperature and suppress weeds as these do not address a resource concern and revised the “Conditions where practice applies” to remove this practice from being used for weed control for production agriculture. Added the implementation requirement document to the specifications and plans.

 

Residue and Tillage Management, Reduced Till (Code 345) – Incorporated “346 Residue and Tillage Management, Ridge Till” into this standard; changed the name from Residue and Tillage Management, Mulch Till; added criteria to establish a maximum soil tillage intensity value of 80; clarified the air quality purpose to reduce tillage-induced particulate emissions vs. only PM-10 emissions; revised the criteria for energy savings to a 25-percent reduction from the current baseline; and added implementation requirements to the specifications and plans.

 

Saturated Buffer (Code 604) – This is a new conservation practice standard developed from an existing interim conservation practice standard Saturated Buffer (Code 739).

 

Stripcropping (Code 585) – Revised the definition to stress alternating strips of erosion susceptible crops and revised the wind erosion purpose to reduce wind erosion and associated transport of sediment and other wind borne contaminants. Added the implementation requirement document to the specifications and plans.

 

The following revisions to the Wisconsin FOTG have been posted on the Wisconsin e-FOTG website:

Remove the following outdated Standards and Specifications from any printed copies of the WI FOTG:

  • Index
  • Clearing and Snagging (Code 326)
  • Contour Orchard and Other Perennial Crops (Code 331)
  • Cross Wind Ridges (Code 588)
  • Cross Wind Trap Strips (Code 589C)
  • Field Border (Code 386)
  • Fish Raceway or Tank (Code 398)
  • Herbaceous Weed Control (Code 315)
  • Mulching (Code 484)
  • Residue and Tillage Management, Reduced Till (Code 345)
  • Stripcropping (Code 585)

 

Add the following Standards and Specifications to any printed copies of the WI FOTG:

  • Index
  • Clearing and Snagging (Code 326)
  • Contour Orchard and Other Perennial Crops (Code 331)
  • Cross Wind Ridges (Code 588)
  • Cross Wind Trap Strips (Code 589C)
  • Field Border (Code 386)
  • Fish Raceway or Tank (Code 398)
  • Herbaceous Weed Control (Code 315)
  • Mulching (Code 484)
  • Residue and Tillage Management, Reduced Till (Code 345)
  • Saturated Buffer (Code 604)
  • Stripcropping (Code 585)

 

A link to the Wisconsin FOTG is located on the Wisconsin NRCS website at:

http://www.nrcs.usda.gov/wps/portal/nrcs/main/national/technical/fotg/

 

/S/

JIMMY BRAMBLETT

State Conservationist

 

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