Kentucky bluegrass 2 Kentucky bluegrass 2 A mixture containing 5 lbs. Nitrogen fertilization of grasses provides earlier grazing in spring and supplies forage in fall when legumes should be rested. Pasture Management Begin grazing pure stands of bluegrass when 4 to 6 inches tall and graze back to 2 to 3 inches. If a legume is included in the mixture, start grazing when the legume is about 8 to 10 inches in height. This will maintain growth and help to establish the legume in the stand.
Horses can graze pure stands of alfalfa with possible laxative effects.
Usually alfalfa is mixed with bromegrass or orchardgrass to provide productive pasture for horses. Do not put horses into the pasture for the first time when they are hungry. Horses accustomed to grazing pasture should be gradually introduced to pasture over a period of several days. Use a pasture system containing a pure grass pasture for early spring and for fall grazing after September 15 th . Grazing alfalfa past mid-September may greatly decrease its winter survival rate.