Tip burn in lettuce: Calcium or Potassium deficiency?

Last year, we conducted a trial to look into the causes of tipburn in lettuce.

The ratio between potassium and calcium plays a significant role in this, it is concluded that a deficiency of potassium can also cause tipburn. Additionally, it was concluded that the addition of silicon reduces symptoms of tipburn.

Want to learn more about this study and its results? Read the article Tip burn in lettuce: Calcium or Potassium deficiency?  by Groente en Fruit actueel.