Corn is only a foot high in many parts of the state, but farming leaders say growers should already be concerned about having enough propane on hand for the fall harvest.
The Minnesota Corn Growers Association is warning farmers to be ready for possible shortages like those they experienced last year, especially if the weather is wetter than normal in the fall.
"It's absolutely essential that farmers plan ahead for their propane needs," said Ryan Buck, president of the Minnesota Corn Growers Association. "There's a good chance that the days of having propane delivered as you need it during harvest — something farmers had been used to before last year — are over for the foreseeable future."
Propane, also known as LP gas, is necessary during some years if the moisture content of corn is more than about 15 percent at harvest time. Farmers use the fuel for large dryers to reduce the moisture so that the harvested corn kernels do not rot or spoil in storage.
In the past, farmers have ordered propane at harvest time on an as-needed basis, and in some years little if any was needed because crops dried sufficiently in the field.
But Buck noted that several factors have changed significantly in the propane market during the past couple of years.
The Cochin pipeline that supplied 36 percent of Minnesota's propane is no longer available, and now carries light petroleum condensate from the United States to Canada's booming oil industry. More propane is being delivered by rail, Buck said, but that has not always been as convenient and reliable. More propane is being exported to other countries than ever before, he said.
The take-home message is that farmers and suppliers need to add storage capacity or take other steps if possible to lessen the risk of shortages — both during harvest and during winter when homes and barns need to be heated.