THE SKINNY ON SULFUR:TESTS SHOW THAT SULFUR APPLICATIONS CONSISTENTLY BENEFIT CORN, ESPECIALLY IN LOW-ORGANIC SOIL.

摘要

Evidence mounts that you should consider sulfur fertilizer for corn, particularly in fields low in organic matter. It can take as little as 10 pounds per acre of sulfur, typically at a cost of 500 per pound or less to give a corn yield response, saysDan Kaiser, University of Minnesota Extension agronomist. Sulfur is particularly beneficial on soils under 2% organic matter."Sometimes, 20 pounds per acre gives the best response," he says. "It doesn't take much, and the crop doesn't care when it gets it. It tends to carry over, too. If you apply sulfur at 20 to 25 pounds per acre, you can get two years' response from that one application in medium- and fine-texture soils."