Producing cool season grass seed crops has historically been a profitable venture on Kentucky farms.
When growing maximum yields of grass seed, the pH level should be maintained between 6.0 and 7.0, when the recommended rates of limestone are used, and when phosphate and potash are maintained at medium-to-high levels (based on a soil test). Similarly, grass should be grown in pure stands. Weeds and insects must be controlled to prevent yield reduction.
Following seed harvest, excess herbage should be removed, preferably by grazing. All cool season grasses can be grazed until growth stops in the late fall or early winter, and grazing can continue on tall fescue until March without reducing seed yields.
Buckner, Robert C. and Thompson, Warren C., "Grass Seed Production" (1968). Agronomy Notes. 193.