One clue to potassium deficiency will jump out at you before you even plant your 2013 crop: If a field has a history of standability problems every time you plant it to corn, the culprit probably ...

Potassium (K) is a fascinating macronutrient. In corn, it sets the stage for a healthy ... when plants suffer from severe stunting due to a deficiency of K.” Sara Schafer uses her Missouri ...