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Questions and Answers: 2020

Question: how many nutrients are absorbed by a tree before leaf fall? jb

• Question

  how many nutrients are absorbed by a tree before leaf fall? jb

  Answer

  Dear johnbarry, certain minerals are mobile and can be reabsorbed by the tree before the leaves fall. These include nitrogen, phosphorus, potassium, and magnesium. Other important minerals, like calcium, are not mobile and will fall with the leaf. Here is a link to more information about this phenomenon: https://www.canr.msu.edu/news/knowing_nutrient_mobility_is_helpful_in_diagnosing_plant_nutrient_deficienc