University of Illinois researcher Scott Foxhoven will share new research on replicated trials comparing banded potassium and nitrogen to broadcast application, along with seeding population and yield response experiments at the 2020 National Strip-Tillage Conference.

In a new study from the University of Illinois, scientists document waterhemp’s resistance to yet another class of herbicides, known as Group 15s. The study provides the first documentation of a non-grass plant to be resistant to Group 15 herbicides.

If soils are too acidic, phosphorus reacts with iron and aluminum, making it unavailable to plants. But if soils are too alkaline, phosphorus reacts with calcium and also becomes inaccessible. However, liming can influence other ways by which phosphorus might become available to plants.

Research aims to track the contributing factors of nutrient management practices, such as cover crops, reducing nitrogen use and wood chip bioreactors.

The advent of cover crops provides a potentially important habitat for birds returning to the Midwest from areas as far south as Argentina.

Corn and soybean take up relatively large amounts of phosphorus (P) and potassium (K), and much of this P and K ends up in the grain that is taken off the field during harvest. In order to keep soil nutrient levels from dropping over time, the amounts removed need to be replaced by applying fertilizer or manure. In order to know how much nutrient a crop removes, we need to know how much there is in a bushel of harvested grain.