is part of the Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

  • American Agriculturist
  • Beef Producer
  • Corn and Soybean Digest
  • Dakota Farmer
  • Delta Farm Press
  • Farm Futures
  • Farm Industry news
  • Indiana Prairie Farmer
  • Kansas Farmer
  • Michigan Farmer
  • Missouri Ruralist
  • Nebraska Farmer
  • Ohio Farmer
  • Prairie Farmer
  • Southeast Farm Press
  • Southwest Farm Press
  • The Farmer
  • Wallaces Farmer
  • Western Farm Press
  • Western Farmer Stockman
  • Wisconsin Agriculturist
4 Tips to Manage Grain Quality from Harvest through Storage

4 Tips to Manage Grain Quality from Harvest through Storage


The 2012 growing season has been synonymous with challenge. The many different faces of extreme weather have come together to negatively impact the quantity and quality of corn that will be harvested this fall. While many of these factors alone can be detrimental to a corn crop, when they happen at the same time the result can be a complete crop loss if not handled properly.

“This year has been particularly challenging for growers, as the drought has caused higher levels of mold in the corn being harvested,” explains Gary Woodruff, grain conditioning technology manager with Grain Systems Incorporated. “Alongside the drought, warmer weather at harvest means the temperature inside the bin is higher than normal. When these two factors are combined, the spread of mold is exceptionally high, and can translate to significant losses of stored corn and, ultimately, farmers’ profits. Everyone putting grain in a bin must be vigilantly proactive this year to avoid devastating losses.

“Farmers put so much work into planning, planting and managing their crop throughout the growing season, and this fall we need to put as much focus on harvest and storage to reap the greatest benefits,” says Woodruff. “If growers are lucky enough to have a crop to put in the bin this season, it’s critical that they manage it properly to take advantage of the record prices available to their operations.”

While the weather conditions can’t be controlled, farmers must manage the environment in which the corn crop is harvested and stored, says Woodruff. To best manage this atypical season, he recommends the following tips to ensure the highest-quality grain can be marketed:

1.     Dry quickly, cool quickly. Mold populations can grow 6%/hour at 80° F in the truck or wet bin. Woodruff recommends using a high-temperature dryer and raising the temperature to 120° F or higher, which significantly reduces the mold levels. Once dried, cool the grain as quickly as possible to 50° F or below for the best storability. Like a refrigerator, grain can be stored for much longer time periods when the temperature and moisture levels inside the bin are optimal. The table shows the maximum amount of time corn can be stored (in days) based on grain temperature and moisture, and reinforces the importance of the cooling and drying processes.

2.     Drop storage moisture percentage. Woodruff recommends dropping the storage moisture percentage by ½-1 percentage point this season, which means for many operations drying down to 14.5% or 14%. This helps to increase the length of time the grain can be stored, since lower moisture levels reduce mold growth. Do not consider trying to store grain above 14.5% moisture this year unless you are in an area where there was no drought and no mold issues.

3.     Get corn out of the field fast. University experts are encouraging farmers to start harvesting earlier this growing season at above 25% harvest moisture, with some recommending starting as early as 30% harvest moisture. Additional drying will be needed, which means a greater investment in fuel, but this can be justified, says Woodruff. He says growers will realize that the cost of 3-5 bu. of corn can cover the additional fuel to dry an entire acre of grain at 25% harvest moisture. Field losses will escalate quickly as stalk quality declines leaving many more bushels in the field. By making the proper investment you can rest assured more high-quality corn can be marketed.

4.     Plan ahead for potential challenges. Woodruff warns that if you are unable to manage the corn crop with proper drying, cooling and storage practices, be prepared to take your grain quickly or even directly to the elevator. Marketing the corn quickly will allow it to be delivered to the elevator before the quality declines and the grain could possibly be rejected due to mold. If you have more bins than crop this year, consider still using them all but reducing the grain depth. This improves the cooling and aeration rates and increases the chances of stopping a potential problem, while reducing the amount of grain lost if one bin has issues.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.