Corn planting in Indiana advanced rapidly this season, reaching 30 percent planted as of April 26, up from just 14 percent the previous week, according to a May 14 update from Purdue University Department of Agriculture specialists Jeferson Pimentel and Daniel Quinn. This pace is well ahead of both last year’s rate and the five-year average.
The early surge in planting means many growers took advantage of favorable field conditions. At this point in the season last year, only nine percent of corn had been planted, while the five-year average stands at ten percent. “That’s a big move in a short window and reflects how quickly fields turned fit across much of the state,” Pimentel and Quinn said.
Experts urge farmers to monitor soil temperature and moisture closely during this period to ensure uniform emergence. They caution that cold stress during emergence remains a risk despite early progress. The report notes that uniform emergence is more important for yield than simply meeting calendar dates for planting.
Quinn addressed hybrid selection for late-planted corn, explaining that hybrids generally require fewer growing degree days (GDDs) to reach maturity when planting is delayed—a phenomenon known as GDD compression. He said producers can often maintain full-season hybrids longer into late spring than previously thought without sacrificing yield potential: “By understanding how corn development is driven by GDD accumulation (and how GDD requirements are reduced with a later planting date via compression), producers can make more informed and confident hybrid decisions.” Decision support tools such as the U2U Corn GDD tool help estimate silking and maturity dates based on location and hybrid selection.
Aline Fachin Martíni and Camila Nicolli provided information on mycotoxin production in corn, emphasizing that contamination risk persists throughout several growth stages—from silking through storage—and depends on environmental conditions such as heat or drought stress. They said effective management requires ongoing monitoring: “Mycotoxins are not produced at a single moment. They result from continuous and dynamic interaction among infection, environmental conditions, and crop stress from silking through storage.” Timely harvests along with proper drying and storage are recommended to minimize contamination risks.
Beth Hall from the Indiana State Climate Office reported significant rainfall across parts of Indiana recently—some areas received over five inches—which has helped alleviate most drought concerns statewide. She highlighted the value of citizen science programs like CoCoRaHS for precipitation monitoring: “Precipitation can be highly variable over very short distances, so there are never too many observers!”
Purdue University Department of Agriculture serves as a core academic unit within Purdue University; it utilizes facilities such as the Agricultural Administration Building on its West Lafayette campus; its agricultural engineering graduate program ranks first nationally; it supports innovative projects through AgSEED grants; fosters vibrant communities through extension efforts; and recognizes figures like Virginia Ferris—the first female full professor—as notable contributors according to the official website.
As spring continues with changing weather patterns—including possible frost events—experts recommend close observation for optimal crop management.
