AGRI-BRIEFS
  AGRONOMIC NEWS ITEMS
From Agronomists of the
Potash & Phosphate Institute
655 Engineering Drive, Suite 110
Norcross, Georgia 30092-2837
Phone (770) 447-0335

Summer 1997, No. 6

BERMUDAGRASS RESPONDS TO BALANCED NPK NUTRITION

Balanced nutrition is one of the vital management practices for high bermudagrass yield, quality, stand longevity, and input use effectiveness. Nitrogen, phosphorus and potassium fertilizers contribute most when good stands, growing on productive soils, are managed and subjected to a harvest schedule capable of developing the full potential of this top-quality livestock feed source.

Total nutrient requirements are site-specific. Nutritional requirements change with management practices, yield level and forage quality expectations. Plants harvested at early growth stages are high in nutrients such as nitrogen, potassium and sulfur since all three are essential for protein formation. Research has shown that each ton of quality forage removes 50 pounds of nitrogen, 12 pounds of P2O5, and 47 pounds of K2O. Thus, each acre of bermudagrass harvested at a 4-week interval and yielding about 7 tons per acre would remove nearly 350 pounds of nitrogen, 85 pounds of P2O5, and 330 pounds of K2O. Also included would be about 25 pounds of magnesium and 40 pounds of sulfur. Removal of soil nutrients without adequate replacement can be costly. A balanced fertilization program helps to:

Consider the following when growing high quality bermudagrass feed for livestock. For most profitable yields and highest forage quality, balanced nutrition is a best management practice on bermudagrass.

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For more information, contact Dr. Noble R. Usherwood, Southeast Director, PPI, 655 Engineering Drive, Suite 110, Norcross, GA 30092-2837. Phone (770) 825-8070.
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