Manganese and Boron Deficiency
scouted July 7, 2023
- Background
- Soybeans were scouted at the R2 growth stage and interveinal chlorosis along with pale green color of the whole plant was observed.
- Conclusion
- This issue was confirmed by an NC State Extension Specialist as a Manganese (Mn) and Boron (B) Deficiency. Interveinal chlorosis of leaves, pale green color of the whole plant, and stunted growth can be associated with a manganese deficiency in soybeans. If an environment has been over applied with lime, a manganese deficiency may be observed as a result of limited availability at high pH. Shortened internodes, yellowing or rendering of upper leaves, and deformed or dead terminal or growing points can be associated with a boron deficiency in soybeans. Excessive or lower amounts of rainfall can result in a reduction of B uptake.
