BATON ROUGE — At St. Louis Planting Co. in Iberville Parish, Patrick Frischhertz is busy checking off the list of usual springtime chores at a sugarcane farm: preparing rows for planting and applying fertilizer.
Far from usual, however, is the cost of completing these tasks.
Potash fertilizer is about 250 percent more expensive than it was two years ago, Frischhertz estimates. Some herbicides have d…
