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Establishing and Maintaining Lawns

Establishing and Maintaining Lawns. Competencies 37.00-39.00. Turfgrasses - Plugging - Stolonizing - Sprigging – Seeding - Seed mixture - Fertilizer analysis - Thatch -. Transition zone - Tillers - Warm-season turfgrasses - Cool-season turfgrasses Crown - Sheath - Blade -

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Establishing and Maintaining Lawns

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  1. Establishing and Maintaining Lawns Competencies 37.00-39.00

  2. Turfgrasses - Plugging - Stolonizing - Sprigging – Seeding - Seed mixture - Fertilizer analysis - Thatch - Transition zone - Tillers - Warm-season turfgrasses - Cool-season turfgrasses Crown - Sheath - Blade - Ligule - Vocabulary

  3. North Carolina Grasses • Most commonly grown grasses in NC include • Kentucky Bluegrass • Bahiagrass • Centipede • St. Augustine • Bermuda • Zoysia • Fescue • Ryegrass

  4. Grass Identification • Grasses are identified by • Growth habits • Warm or cool season • Leaf texture (fine, medium, coarse) • Color (light to dark green)

  5. Growth Habits • Ways new shoots are produced • Three types: • Rhizome – below ground & tend to be white in color • Stolon – above ground • Bunch-type

  6. Cool Season Grasses • Grow best in spring and fall and stay green in winter • Tall fescue • Kentucky Bluegrass • Fine fescue • Perennial Ryegrass • Annual Ryegrass

  7. Warm Season Grasses • Grow best in summer and go dormant in winter • Bermudagrass • St. Augustine • Bahiagrass • Centipede

  8. Kentucky Bluegrass • Growth habit-rhizome • Cool season • Leaf texture-fine • Color-Medium to dark green

  9. Bahiagrass • Growth Habit-Rhizome • Warm season • Leaf texture-coarse • Color-medium to dark green

  10. Centipede • Growth Habit-stolon • Warm season • Leaf texture-medium • Color-Light green

  11. St. Augustine • Growth Habit-stolon • Warm season • Leaf texture-coarse • Color-medium to dark green

  12. Bermuda • Growth Habit-both stolon and rhizome • Warm season • Leaf texture-fine • Color-light to dark green

  13. Zoysia • Growth Habit-both stolon and rhizome • Warm season • Leaf texture-fine • Color-medium to dark green

  14. Fescue • Growth Habit-bunch type • Cool season • Leaf texture-medium to coarse • Color-medium green

  15. Ryegrass • Can be annual or perennial • Growth Habit-Bunch type • Cool season • Leaf texture-Perennial-fine, annual-medium • Color-medium green

  16. Climate

  17. U.S. Regions or Zones • The U.S. has six regions or zones based on climate • Temperature • Available moisture • Length of growing season

  18. Zones in NC • Three of the U.S. regions are in NC • Mountains and western piedmont are region 1 • Central and eastern piedmont and coastal plains are region 2 • Extreme southeastern coast is region 3 • Because of the wide range of climatic conditions in NC, many lawn grass varieties are grown in different areas of the state

  19. Region 1 Grasses • Kentucky Bluegrass • Red Fescue • Colonial Bentgrass • Tall Fescue • Bermudagrass • Zoysia

  20. Region 2 Grasses • Bermudagrass • Zoysia • Centipede • St. Augustine • Carpetgrass • Tall Fescue • Kentucky Bluegrass

  21. Region 3 Grasses • St. Augustine • Bermuda • Carpetgrass • Zoysia • Bahiagrass

  22. NC Regions • Western-use cool season grasses • Piedmont-use either cool season or warm season depending on location • Coastal Plain-use warm season grasses and cool season Tall Fescue

  23. Environmental Requirements

  24. Temperature/Climate • Cool season • Warm season

  25. Type of soil

  26. Use tolerance or wear • Excellent-Bermudagrass • Very Good-Kentucky Bluegrass, Tall Fescue • Good-Zoysiagrass, Bahiagrass • Fair-some mixtures • Poor-Centipede, St. Augustine

  27. Lime and Fertilizer • Follow Soil Sample recommendations

  28. Watering • As needed, depending on weather and water conservation laws

  29. Mowing • Recommended height varies from about 1” for Bermuda, Centipede, and Zoysia to 3” for Tall Fescue • General rule of thumb is that less than half of the total leaf surface should be removed

  30. Pest Control • Weeds • Insects • Diseases • Moles

  31. Light Requirements • Different grasses are adapted to the amount of sun or shade • Shade • Partial Shade • Full sun

  32. Starting a Lawn

  33. Methods to Start a Lawn • There are four major methods used to start a lawn • Seeding • Sodding • Plugging • Sprigging and stolonizing

  34. Seeding • Most common and least expensive • Sown by hand or with a mechanical device such as hand spreaders or powered by machinery such as • Cultipacker seeder • Hydroseeder (a sprayer that applies seed, water, fertilizer and mulch at the same time)

  35. Hydroseeder

  36. Sodding • Using established turf (grass and roots) that is cut into thin layers and removed from the growing area in strips • Taken to a new lawn and rolled out and fitted together • More expensive than other methods • Provides an instant lawn • Works on slopes where seeds will wash away

  37. Sodding

  38. Plugging • Using small plugs or blocks of sod to plant in holes about one foot apart • Very time-consuming • Used for many warm season grasses that are poor seed producers

  39. Sprigging and stolonizing • Uses plant runners, cuttings or stolons without soil attached to start new lawns. • Slow if done by hand • Can be done by broadcasting plant parts and rolling or disking into the soil • Usually used on larger areas such as golf courses

  40. Preparing a Seed Bed

  41. Steps to Preparing Seed Bed • There are four steps to preparing a seed bed: • Grading • Drainage • Conditioning the soil • Planting the lawn

  42. Grading • Slope away from the house to drain water away from the house and basement • Slope should not be over 15% for lawn grasses because of mowing safety

  43. Drainage • Necessary for proper root growth • Slope affects drainage. Drainage tile below the surface can be used.

  44. Drainage

  45. Conditioning the Soil • Six inches of topsoil should be spread over subsoil or if six inches are unavailable, well-rotted or decayed organic matter should be added and mixed into the soil. • Roots, stones, dirt clods and other trash such as metal, etc. should be removed • Soil should be tested for pH and nutrient recommendations

  46. Conditioning the Soil • Lime and fertilizer should be added to make pH of 6.5 to 7.0 and to meet fertilizer recommendations. • All soil additives such as lime, organic matter, fertilizer, pesticides, etc., should be worked into the soil. Soil should be tilled to break the soil into small particles.

  47. Planting the Lawn • Plant at the proper time of year: warm season in spring and cool season in early fall or very early spring • Choose the correct high quality seed for the climate and use • Sow one-half recommended rate of seed in one direction and sow the other half across the lawn at a 90 degree angle to the first half

  48. Planting the Lawn • Cover seeds by lightly raking so that seeds will have contact with the soil • Mulch with light cover of straw or use commercial mulching material, especially on slopes • Water to keep seeds moist and new seedlings moist until they are well established

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