Perennial Ryegrass (Lolium perenne)

Description

Perennial ryegrass is known to have excellent forage quality and digestibility. It establishes very easily and germinates rapidly, making it a good grass for repair and overseeding. Ryegrass responds rapidly to water and nitrogen, making it excellent for dairy applications where manure water is available. Like annual ryegrass, perennial ryegrasses are either diploid or tetraploid.

Strengths

Medium yields; vigorous establisher; high forage quality and palatability; high leaf-to-stem ration; compatible with legumes.

Limitations

Less persistent than orchardgrass; lacks heat and drought tolerance; difficult to dry for hay; difficult to cut with sickle bar mower; poor summer regrowth.

General

Longevity
Perennial
Growth Habit
Bunch
Primary Growth Seasons
Spring, fall
Plant Height (in cm)
30 - 60
Seeds (per lb)
237,000
Seedling Vigor
Excellent

Climate and Soil Tolerances

Heat/Drought
Poor
Cold
Poor - Good
Wet Soil/Poor Drainage
Fair - Good
Salinity
Fair
High pH Alkalinity
Fair
Low pH Acidity
Fair

Fertility Requirements

Optimum pH
5.5 - 7.5
Required Fertility Levels
Medium - High

Performance Potential

Feed Value/Quality
Very High
Palatability
Excellent
Digestibility
Excellent
Crude Protein
High
Tonnage (Yield)
Medium - High
Nitrogen Fixation (lbs/ac/year)
-

Use/Application

Continuous Grazing
Good - Excellent
Rotational Grazing
Excellent
Hay
Good
Silage
Excellent

Seeding Rates (HG/HA)

Pure Stand
28 to 39.2
Hay mixture (with legumes)
3.4 to 5.6
Hay mixture (with grasses)
11.2 to 28