Spring planting for corn and soybeans is running about two weeks behind schedule in Indiana.

Purdue's Bob Nielsen says it's because of the cool, wet weather recently. He says some farmers have already been forced to replant corn because the seeds did not germinate properly. He says other farmers must decide whether to go ahead and plant corn despite the risk of lower yields or switch to soybeans, which have a shorter growing season.

Nielsen is an agronomist and corn specialist at Purdue. He says corn planted in late May or early June generally produce yields 15 percent to 20 percent lower than corn crops planted earlier in the season.

This week's state crop report says 77 percent of the corn had been planted by Sunday, compared with the five-year average of 89 percent. And 38 percent of Indiana's soybean crop had been planted, compared with the five-year average of 67 percent.