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
Justification
- Little has been recorded regarding field chloride variability.
Although most Northern Plains producers soil sample for NO3-N, chloride is an important component of sampling. Current sampling guidelines for composite soil sampling may overestimate the amount of nutrient sin a field, leading to under-fertilization of nutrients, including chloride. The objectives of this study are to determine how chloride varies across fields and determine whether sampling strategies directing NO3-N represent chloride levels as well.