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The Relationship Between Manganese (Mn) and Potassium (K)

Posted by Amir Tajer on

Plants which produce fruit with a high concentration of carbohydrates require a great deal of potassium for carbohydrate transport into the fruit. The fruit functions as a storage organ for sugars, and consequently, also become a storage sink for potassium. High carbohydrate fruit such as tomatoes or potatoes need a generous supply of potassium to fill fruit.

Potassium is usually readily absorbed, but sometimes crops struggle picking up potassium from the soil.

This can be due to a variety of factors such as inadequate root systems, low soil microbiology, poor quality water, or even challenges with local geology and soil makeup. Potassium can easily become complexed when soil pHs are too high or calcium and phosphorus levels are too high.

We often observe situations in which the soil has generous supplies of potassium, yet the crop is not absorbing potassium to fulfill all of its needs.

With this analysis, we have been able to accurately observe a direct correlation between manganese availability and a crop’s ability to absorb potassium well.

When plants are provided with adequate levels of manganese, potassium absorption greatly increases, even with no additional applications of potassium.

When manganese levels increase, potassium levels increase, and usually calcium and magnesium increase as well, with not additional applications.