Addressing Soil Chloride Variability and Its Management
Addressing Soil Chloride Variability and Its Management, 1998 In the northern Great Plains, grid sampling is not used by many wheat producers because of its expense. To be profitable, responsive areas within fields (less than 30 lb Cl/A 2 ft) need to be characterized by a minimum number of soil samples. Five sites (Mandan, Valley City, Colfax, Gardner, and Hunter) in North Dakota were selected in order to study Cl variability. Each of these sites was sampled at small grid spacings.
IPNI-1996-USA-ND8
21 Jun 2001
Methodology
- Samples were obtained in a 110 foot grid from three forty acre fields and part of an 80 acre field. The rest of the 80 acre field was sampled in a 150 foot grid. These fields had also been sampled the previous year in the same grid. Sample cores were separated into a 0-6 inch depth and a 6-24 inch depth. Chloride was analyzed on each depth. Topography was measured using a laser-leveling device for relative elevation.