Tag: Yeomans Keyline

Same Area in May Before 2010 Monsoons

Same Area in May Before 2010 Monsoons

This picture shows what winter moisture did for plants between the furrows.  Area to right in this picture was not subsoiled; obviously it received the same rainfall.

Our First Treatment With Yeomans Plow: October 2009

Our First Treatment With Yeomans Plow: October 2009

The first treatment with our Yeomans Plow.  Treating an area in which desert grass has shifted to tarbush (Flourensia cernua) and bare ground.

Valentine Artist Boyd Elder Sets a Contour

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.

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

Soil Resources

Soil Resources

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

Keyline Treatment of Headcuts

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

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