Abstract
Abstract Sulfur accumulation in young soybean plants tended to follow the pattern reported for P differing only in quantity. Soybean stems tended to have a more constant S concentration over time than did leaves or petioles. The nutrient uptake pattern of a crop provides clues to more efficient management of plant nutrients. The recent reports of increased yields of soybeans due to foliar fertilization would seem to be a culmination of previous work done in Iowa on nutrient uptake patterns (1, 2, 3). In the work reported to date there are no data which illustrate patterns of sulfur uptake by soybeans during the growing season. The work reported here was an attempt to determine the pattern of S uptake by soybeans during early growth stages.
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