Controlled traffic farming to reduce compaction

Establish a controlled traffic system where no more than 25% of the surface is tracked with heavy axel loads to minimize soil compaction. For row crops (e.g. corn in 30-inch rows) no tire should run on a row except for flotation tires on combines and/or fertilizer and lime spreading trucks. If wide flotation tires are used, they must be big enough that the inflation pressure will be below 18 psi to minimize compaction on trafficked rows.

Additional NRCS practice information can be found here. 

CSP Deadlines can be found on the state websites:
Arkansas CSP
California CSP
Louisiana CSP
Texas CSP