Wesley Haun, agronomist with H.J. Baker & Bro., discusses what farmers might see happen to their soybean crop if the plants are deficient in sulfur. He also explains the factors that influence the availability of sulfur in soil, as well as critical points about the sulfur uptake process. ISA would like to thank H.J. Baker for sponsoring this webinar.

Key Takeaways:

  • Sulfur is a secondary nutrient for soybeans. It is involved in metabolic functions for the plant, including seed formation and photosynthesis.
  • Deficiencies of sulfur in soybeans can lead to decreased yield and decreased protein content.
  • Two ways to diagnose a deficiency is to perform a plant tissue analysis or to do a soil test.
  • Factors that impact soil-sulfur availability include:
    • Low organic matter
    • Sandy soils
    • Well-drained soils
    • Soils with a low pH

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