Good Guys Gone Bad: Nutrient Toxicity

In this episode, Dr. Steve Petrie talks about essential nutrients that can also become toxic to plants when over-applied - boron, chloride, iron, and manganese.

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In this episode:

  • Boron is the nutrient with the narrowest range between sufficient and toxic
  • Annual crops tend to be less sensitive to chloride toxicity, while perennial crops tend to be more sensitive to Cl
  • Iron toxicity, although not common in US soils, can occur when soil pH decreases and the acidity in the soil increases
  • In some situations, the use of potassium chloride can increase manganese's availability in the soil, leading to Mn toxicity

Related episode

Toxic Elements to Watch Out For


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