Synopsis Manganese concentration in soybean plants increased 200 ppm. after 15 minutes contact between plant surfaces and applied manganese sulfate solution. Manganese absorbed by the leaves and stems increased with increasing manganese concentration in the applied solution, and with an increase in plant temperature and the length of time the manganese remained in solution on the leaf surface. A portion of the accumulated manganese appears to be held by adsorption at the leaf surface.
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Mederski et al. (1958) studied this question.