Abstract:
Tall fescue is grown for turf or forage seed on a broad range of soils in western Oregon. Typical seed yield is 1,200 to 2,000 lb/acre. Higher yields do not require additional nutrients beyond amounts recommended in this guide. These recommendations, especially for nitrogen, are adequate for production of more than 2,500 lb/acre seed on sites where soil pH and drainage do not limit yield. Research has demonstrated that plant growth regulators increase tall fescue seed yields. However, use of plant growth regulators does not increase the need for nitrogen, phosphorus, potassium, or sulfur fertilizer.
