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USDA Special Thanks: Rhonda Miller, Utah State University USDA
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Establishment: planting a pasture where there is no existing pasture Renovation: a series of actions that lead to a long-term change in the plant composition of a pasture USDA ARS
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Partial renovation ◦ Rejuvenation or enhancement of existing pasture ◦ Conduct if you have a poor forage stand winter injury, drought, weed invasion, etc. Total renovation ◦ Destruction followed by reestablishment of either the same species or another species Species - refers to the type of plant, such as alfalfa, sweet clover, smooth bromegrass, etc. Cultivar - refers to a specific variety within a species. York is a cultivar of smooth bromegrass.
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Replace old or diseased pasture species with healthy improved varieties Extend or increase productivity of pasture Improve quality of forage Increase animal productivity Reduce soil erosion Reduce noxious weeds www.farmphoto.com
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Renovate when: ◦ Pasture is in poor condition and even proper management techniques will not improve the pasture to the desired level UNCE, Reno, Nev.
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Seedbed preparation Seeding methods Seeding guidelines Seeding rates Costs
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Seedbed preparation ◦ Seed requirements ◦ Tillage ◦ Other forms of seedbed preparation ◦ Fertility and pH USU, Logan, UT
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Your goal: Provide a firm seedbed with just enough loose surface soil for shallow seed placement and good seed-to-soil contact Seed requirements ◦ Adequate soil temperature ◦ Moisture ◦ Oxygen ◦ Seed-to-soil contact Accomplish by creating a firm, moist seedbed)
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Proper seed placement Good soil-seed contact Successful establishment www.farmphoto.com
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Deep tillage (plow) Disc Roller harrow or cultipacker www.farmphoto.com Proper tillage creates a firm seedbed
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Purpose of tillage ◦ Eliminate existing vegetation ◦ Turn under surface weed seeds ◦ Loosen soil ◦ Incorporate fertilizer ◦ Provide firm seedbed for seeding www.freefoto.com
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Close clipping or grazing Burning Non-selective herbicides USU, Logan, UT
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Base on soil test results Add lime if pH is low Add sulfur if the pH is high Determine a reasonable yield Add appropriate macro-nutrients ◦ Phosphorus and potassium ◦ Nitrogen
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Seeding guidelines Planting windows ◦ Late winter to early spring ◦ Late summer to early fall Seeding depth ◦ Varies, is species specific Inoculation of legumes ◦ Ensures proper bacteria present for nitrogen fixation clay.agr.okstate.edu
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Germination through emergence Hard seed Cold temperatures Improper planting depth Seed dries out Crusted soil surface Toxicity - allelopathic effects, herbicide carryover clay.agr.okstate.edu
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After emergence Inappropriate pH Low fertility Poor drainage Drought Insects Diseases, winter kill Inadequate legume inoculation Competition from weeds/companion crops clay.agr.okstate.edu
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Seeding methods Broadcast Cultipacker Drilled No-till Frost seeding Companion crop USU
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Cheapest and easiest method of seeding Need to drag or pack the soil after spreading the seed Tilled seedbed Seed placement not uniform www.modernforage.com
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Consists of two sets of rollers with seed boxes between them Commonly used on tilled seedbeds Don’t use on heavy soils www.faivre.com
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Directly plants each seed into tilled soil at the proper depth Need to use a forage drill Grain drills will result in poor seed placement for small forage seeds UNCE, Reno, Nev.
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Plants seed directly into existing vegetation ◦ Solid planting ◦ Band planting Requires a no-till planter Reduces erosion Conserves soil moisture Reduced fuel, labor, and time requirements www.usda.gov
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Seed is broadcast in late winter on soil surface Freezing & thawing action plus rain will cover seed Works well with red clover www.freefoto.com UNCE
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Advantages: Can be cut or grazed for feed Provides a quick ground cover Helps control soil erosion Reduces invasion of weeds Disadvantages: Competes for nutrients, light and moisture Good management is essential USDA
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Seeding rates Desired stand Percent pure live seed Other factors to consider Intermediate wheatgrass seed
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Desired stand varies based on: Forage species planted ◦ Ability to fill in (rhizomes) ◦ Mixture, pure-stand, companion crop Availability of water Percent pure live seed (PLS) % PLS = % Purity x % Germination % Purity = % of seed that is the desired forage seed % Germination = % of seed that germinates when planted
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MethodCost per acre (2012) Plowing Moldboard$15 - $30 Chisel$15 - $30 Disc/Harrow Tandem disc$15 - $30 Harrow/Cultipacker$10 - $30 Planting Conventional Drill$10 - $15 No-till$15 - $20 http://www.coopext.colostate.edu/ABM/custrates.htm
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Grasses - Irrigated (June 2013) Grasses – Dryland (June 2013) SpeciesCost/lb (PLS)Seeding Rate (Drill) Orchardgrass$2.22/lb5 lb/acre Timothy$2.40/lb3 lb/acre Tall fescue$1.40/lb8 lb/acre Smooth bromegrass$4.50/lb13 lb/acre SpeciesCost/lbSeeding Rate (Drill) Western wheatgrass$7.50/lb8 lb/acre Sideoats grama$15.90/lb4.5 lb/acre Prairie junegrass$21.95/lb1 lb/acre Blue grama$27.00/lb1.5 lb/acre
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Reduced yield as stand establishes: Spring seeding ◦ Reduced number of cuttings first year ◦ Reduced yield per cutting Fall seeding ◦ No harvest of new crop during establishment ◦ Reduced yield of previous crop during year of establishment Ground preparation Time for establishment
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Pasture inventory ◦ Land available ◦ Climate ◦ Soil characteristics Forage use ◦ Livestock ◦ Grazing vs. hay production ◦ Continuous grazing vs. rotational grazing UNCE, Reno, Nev. www.usda.gov
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Land available Grazing land ◦ Water source(s) ◦ Sacrifice area Hay production
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Climate Growing season ◦ Frost-free days ◦ Growing degree days (GDD) Temperature Precipitation Soil characteristics Drainage Water holding capacity
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Livestock Different animals have different nutritional requirements and forage preferences ◦ Horses (timothy) ◦ Dairy cattle (perennial ryegrass) ◦ Beef cattle (tall fescue) www.farmphoto.com
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Grazing vs. hay production Which will be your primary use? Many forages that are good for hay production are not good for grazing, and vice-versa ◦ Upright growth habit - better for hay production ◦ Consider trampling effects www.farmphoto.com
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Continuous grazing ◦ Easy ◦ But…yields are reduced Rotational grazing ◦ Requires more management and infrastructure ◦ But…yields are higher USDA NRCS
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Grasses Legumes Seasonal growth patterns Disease resistance Forage quality Pure stands or mixtures
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Growth habit ◦ Bunch ◦ Sod-forming Stolon Rhizome Re-growth ◦ Jointing ◦ Non-jointing Grasses are more tolerant of poor soil conditions But…grasses require nitrogen source USDA NRCS Little bluestem
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Legumes fix nitrogen from the air Growth habit ◦ Upright (sainfoin) ◦ Prostrate (birdsfoot trefoil) New growth ◦ Axillary (sweetclover) ◦ Crown (red clover) ◦ Axillary & crown (alfalfa) clay.agr.okstate.edu
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ISU
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Genetically inherited traits ◦ Select disease-resistant varieties ◦ Select varieties with good winter hardiness Consider the intended years of use clay.agr.okstate.edu
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Affects: Palatability, and thus amounts consumed Nutritive value ◦ Digestibility ◦ Chemical composition
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Advantages ◦ Management is easier ◦ Weed control is easier Disadvantage ◦ Yield can be lower www.forages.css.orst.edu Advantages ◦ Less nitrogen fertilizer when legumes present ◦ More tolerant of variation in soil conditions ◦ More competitive against weeds Disadvantages ◦ Difficult grazing mgmt ◦ If not managed properly grasses will dominate ◦ More difficult weed control
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Keep the mixture simple Similar maturity date Similar growth habit Similar palatability clay.agr.okstate.edu
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Most productive in the spring and fall Poor summer production Bunchgrasses versus sod-forming grasses Western wheatgrass Crested wheatgrassSmooth bromegrass
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Productive during summer months Must be suitable for your area Bunchgrasses versus sod-forming grasses Prairie sandreed Switchgrass
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Fix nitrogen from atmosphere Some may cause bloat clay.agr.state.edu
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Renovation may be partial or total Partial renovation rejuvenates or enhances parts of an existing pasture Proper management can aide in partial renovation Total renovation destroys existing vegetation then re-establishes better vegetation Plan ahead!
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Determine if your pasture requires improvement or renovation Determine your goals for the improvement or renovation project Determine the best and most cost- effective method to achieve your goals. Determine the best plants to use for your area and for your goals.
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