Tyson Raper and Frank Yin
ARTICLE OVERVIEW
- Sulfur deficiencies are starting to show up this year in TN cotton.
- Deficiencies appear as uniform chlorosis of new growth, slight stunting
- Soil applied applications of ammonium sulfate can still remedy the deficiency
- Late season deficiencies can be addressed with (2) applications of magnesium sulfate (Epsom salt)
- UT currently recommends 10 lb S per ac for cotton
Sulfur (S) deficiencies are beginning to appear in some West TN cotton fields. The image above was taken last week at Ames Plantation in a trial conducted by Dr. Frank Yin. Although the soils at that location (Collins fine sandy loam) are coarser than our typical silt loam, I was surprised to see such a strong response to the nutrient by Continue reading