Effects of Manganese Availability on Acquisition and Distribution of Manganese,Iron and Phosphorus in Soybean [Glycine max (L.) Merr.]

Effects of manganese availability on soybean (Glycine max) growth,acquisition of manganese,iron and phosphorus were investigated. The results showed that soybean growth was significantly inhibited when manganese was deficient or beyond 50 μmol·L-1 in the media. With increase of manganese concentration,more manganese was accumulated in plants,especially in old leaves. Antagonistic effects were observed between manganese and iron. Acquisition of phosphorus was not affected by manganese availability. However,distribution of phosphorus in old and young leaves was significantly influenced by manganese deficiency.