Foliar Potassium Absorption
9/16/2022 - By Dr. Jeff Atkinson
Study: The
Foliar Absorption of Potassium from Organic and Inorganic Potassium Carriers
Location: Texas
A&M University, College Station TX
Researcher: Warren
E. Shafer and David Wm. Reed
Source: Journal
of Plant Nutrition, 9(2), 143-157 (1986)
Summary: A
growth-chamber study was conducted by researchers at Texas A&M University using
soybean (Glycine max) to evaluate foliar uptake efficiency of various
forms of foliar applied potassium.
A total of 31 organic and inorganic potassium compounds were evaluated
for foliar potassium uptake efficiency and burn potential. Of all sources tested, potassium acetate had
the highest percent potassium absorption without causing leaf burn.
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