Mineral element concentrations of corn plant parts with age

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Abstract
Corn (Zea mays L.) plants, grown in nutrient solutions, were harvested regularly from seedlings to maturity and separated into leaves, roots, sheaths, stalks, tassels, husks, cobs, and kernels (where applicable). Each of these plant parts was analyzed for P, K, Ca, Mg, Mn, Fe, B, Cu, and Zn. Marked decreases in P and K were noted in all plant parts with age, except that K increased in tassels. Changes in other mineral elements in the plant parts were smaller, and some minerals remained relatively constant throughout the life cycle of the plant. This information should aid in understanding mineral distribution and movement in various corn plant parts.