Switchgrass / Biofuel
- 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.
- Beginning in the spring following establishment apply 60 pounds of nitrogen per acre when grass begins to grow in May following the establishment year.
- 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.)