Switchgrass / Biofuel

  1. At or just prior to seeding, apply phosphorus and potassium according to soil test. Amounts should be applied annually; however, soil test every two years. Do not apply nitrogen fertilizer at seeding. Native warm-season grasses are slow starters and nitrogen will stimulate weed competition.
  2. Beginning in the spring following establishment apply 60 pounds of nitrogen per acre when grass begins to grow in May following the establishment year.
  3. When boron tests less than .8 lbs/acre apply 1.0 lb of boron per acre annually. Follow up with another soil test in two years.  (Note 3 is used only when the boron test indicates a need for boron.)