Tag: Yeomans Keyline

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Valentine Artist Boyd Elder Sets a Contour

All patterns are plowed on contours which are reset every 200 feet.  The device shown here is an optical transit.  We now use a laser transit which can be operated by one person and which

Plow Design. Timing of Treatments. Possible Seed.

This exchange should be read from the bottom up. It deals with various aspects of designing and using the Yeomans plow. The design of this plow can vary considerably as can its cost. Circle’s is

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Soil Resources

A group of leading soil, rangeland, bug and social scientists are setting out to fill the science gap.

Keyline Treatment of Headcuts

A central concept of Keyline-pattern subsoiling is plowing downwards in valley-forms and upwards on ridge-forms.  This discussion between Chris Gill and Ken Yeomans explains why.

Keyline Concepts for Subsoiling

Netting out what comes below, as explained in paragraphs 11-18: always plow valleys downwards and ridges upwards. This is the heart of Keyline subsoiling and the major unrecognized aspect of contouring which can actually cause