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Wildlife, Animals, and Plants
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VALUE AND USE
SPECIES: Sorghastrum nutans | Indiangrass
WOOD PRODUCTS VALUE :
NO-ENTRY
IMPORTANCE TO LIVESTOCK AND WILDLIFE :
Livestock and wildlife eat indiangrass throughout the summer, but it
does not cure well and is generally considered only fair forage for fall
and winter grazing [69]. Numerous songbirds and small mammals eat the
seeds [55].
PALATABILITY :
Indiangrass is highly palatable to livestock and wildlife in the summer
but only fairly palatable after maturity [53].
NUTRITIONAL VALUE :
Indiangrass provides a good source of protein and vitamin A throughout
the summer when leaves are green. Digestibility and crude protein
decrease as plants mature [11,31,70]. Spring burning (April 1-15)
increased digestibilty of crude fiber, dry matter, and ether extract
[67].
COVER VALUE :
Indiangrass provides excellent nesting and security cover for pheasants,
northern bobwhite, mourning doves, prairie chickens, and several
songbirds [31,55,61].
VALUE FOR REHABILITATION OF DISTURBED SITES :
Indiangrass has been used for several revegetation projects. It is
recommened for range seeding on overgrazed range sites throughout
Nebraska [69]. Roadside revegetation projects in Iowa included
indiangrass [24]. Establishing indiangrass on cultivated soils in the
glaciated prairie pothole region in the north-central United States
creates wildlife habitat [23]. Revegetating mined areas (surface coal
mines) was unsuccessful in east central Texas [66] and Kentucky [47].
Though indiangrass established, the cover was insufficient for soil
stabalization.
Prairie grasses (primarily big bluestem and indiangrass) have had mixed
results for strip-mine reclamation in Illinois. The establishment of
satisfactory stands required 10 to 15 years of growth and high seeding
rates [8]. On 30-year-old strip-mine spoils, indiangrass produced well
with both spring and fall plantings [63]. Another study had fair
success, but suggested early-spring planting be used in areas where
summer moisture stress may be a problem [65].
Direct seeding with a grass drill is the most effective planting method
[24]. Awns and hairlike appendages found on the seeds limit their
ability to flow through the drill. Cleaning with a debearder and
fanning mill significantly increases seed quality and flowability [39].
Planting depth, rate and time, and seed cleaning and quality are
described generally by Wasser [75] and specifically for New Mexico by
Allison [6]. The seeding rate is 10 pure live seed (PLS) pounds per
acre (11-12 kg/ ha) [23]. Transplanting seedlings works successfully
in areas where using a drill is not feasible [54,74]. Broadcast seeding
and hydroseeding have been tried with mixed results [16,24].
OTHER USES AND VALUES :
NO-ENTRY
MANAGEMENT CONSIDERATIONS :
Indiangrass is intolerant of repeated close grazing and is a decreaser
on all range sites [40,69]. It may decrease during drought, but
recovers immediately when precipitaion returns to normal [33]. It may
be incorporated with cool-season grasses in farm management plans, since
maximim production occurs while cool-season grasses are dormant [30].
Cutting indiangrass at the hay stage caused a decrease in plant density
in Wisconsin. Cutting at monthly intervals during the summer caused
little or no decrease in plant densities [62].
Several cultivars of indiangrass are available, each meeting
requirements for specific sites and uses [14,28,37,43,56,71]. Woehler
[79] discusses the use of herbicides to control annual weed competition
in new plantings.
Related categories for Species: Sorghastrum nutans
| Indiangrass
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