Penn State
ForagesPeopleTopicsResourcesSelection ToolContact Info


Topics : Species and Forage Variety Trials : Species Fact Sheets : Timothy

Species: Timothy

Additional timothy information via the Forage Information System (FIS)


Timothy Fertility

Fertility needs at seeding should be determined by soil test. Soil pH between 6.0-7.0 is best for timothy. In the absence of a soil test, assuming a medium-fertility soil, plow down 0-45- 135 lb. per acre and apply 20-20-20 lb. per acre at seeding (banded if possible). If timothy is seeded with a legume, eliminate nitrogen application at seeding.

Timothy is responsive to N fertilization whenever the legume content in the stand is less than 30%. Split applications of 100 to 150 lb. nitrogen per acre annually will generally produce yield increases of 1 to 1.5 tons per acre. Nitrogen fertilization results in increased leaf area, leaf size, tillering, and crude protein content. However, high nitrogen applications, greater than 200 lb per acreper year, can reduce storage of energy reserves and reduce persistence. Apply 50 to 60 lb. of N per acre in the spring when the timothy greens up and additional applications of 50 lb. per acre after each cut.

Application of other fertilizers should follow soil test recommendations. Timothy requires a high level of fertility for maximum production. Potassium fertilizer is important to maximize the legume yield in a timothy-legume mixed stand.

Additional and more detailed information on forage fertilization is also available.