Contour Farming Farming with row patterns nearly level around the hill—not up and down hill.

How it helps
Contouring can reduce soil erosion by as much as 50% from up and 
    down hill farming. *
By reducing sediment and runoff, and increasing water infiltration, 
    contouring promotes better water quality.

Planning ahead
Will more than one key contour line be needed because of steep or 
    irregular slopes?
Are terraces or stripcropping needed for steeper slopes?
Are field borders needed to replace end rows in the contouring system 
    to control sheet and rill erosion?

Tech notes
Establish a key line around the hill by using a hand level or contour 
    gauge.
Contour key line grade should not exceed 2% except within 100 feet of 
    an outlet. In that case, the grade can be a 3% slope.
Perform all tillage and planting operations parallel to the key contour line.
Contouring is less effective in preventing soil erosion on steeper or longer
    slopes.
Replace end rows with field borders to reduce erosion.
Topography may be too steep and/or irregular to contour.

Maintenance
Use grassed waterways in areas where runoff is concentrated to prevent
    gully erosion.
Contoured rows should enter the grassed area of waterways on the 
    level, but should direct water into the grass.
To avoid having to lay out new key contour lines every year, establish a
    narrow permanent strip of grass along each key contour line.

* Check local figures.

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