For Minnesota farmers who apply manure, it can be difficult to know how much nitrogen (N) is in the manure they’re applying and when it is available to the crop. This makes it hard to make decisions about how much additional N fertilizer to apply. An ongoing study by the University of Minnesota is studying six different types of manure over several years in an effort to update the university’s manure guidelines. One of the key takeaways from the study so far is that the amount of bedding in the manure matters. Read more.

UM Extension Minnesota Crop News: Meeting the challenge of manure’s fixed nutrient content

The fixed nutrient ratios of manure don’t always line up with the ratios that crops need, which means you’ll almost inevitably over- or under-apply some nutrients. Overapplication of a nutrient can lead to pollution, while underapplication can lead to nutrient deficiencies or the need to pay for additional commercial fertilizer. What can you do to meet this tricky challenge of manure? Read more: