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.

With reports of dicamba damage soaring in last 2 weeks, University of Illinois weed specialist gives a thorough review of symptoms, analysis of current situation.

What’s good for crops is not always good for the environment. Nitrogen, a key nutrient for plants, can cause problems when it leaches into water supplies.

Researchers at the University of Illinois have found new insight into the mechanisms of how herbicide safeners turn on a defense "switch" in the plant to protect crops from herbicide injury.