Couch hydromulch ppt sta vic conference 2016
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Transcript of Couch hydromulch ppt sta vic conference 2016
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Seeded couch and Hydromulch establishment for sportsgroundsPhillip Ford
PGG Wrightson Turf
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What was known:
1. Seeded couch germinates and establishes very quickly
2. Sowing rate of 40kg/ha is enough
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What was known:
1. Seeded couch germinates and establishes very quickly
2. Sowing rate of 40kg/ha is enough
3. Princess-77 is a very good couch cultivar, even survives
in Ballarat and Christchurch
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What was known:
1. Seeded couch germinates and establishes very quickly
2. Sowing rate of 40kg/ha is enough
3. Princess-77 is a very good couch cultivar, even survives
in Ballarat and Christchurch
4. Wood fibre hydromulch is an excellent germination matrix
and protects against wind and rain
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What was known:
1. Seeded couch germinates and establishes very quickly
2. Sowing rate of 40kg/ha is enough
3. Princess-77 is a very good couch cultivar, even survives in
Ballarat and Christchurch
4. Wood fibre hydromulch is an excellent germination matrix
5. This establishment process is reasonably common in the US
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Potential benefits of seeding couch (compared to sprigging or line-planting)
1. Seed is certified
2. Seed can be stored safely until required
3. Seeding is cheaper, easier and faster to establish
4. Cost: 40kg/ha x $60kg = $2,400/ha
5. Seeding outcompetes weeds, sow later in summer
6. No nematodes, fungal diseases, mites, weeds carried in
7. Seed is able to be applied via hydromulch
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Potential benefits of hydromulching(compared to conventional seeding)
1. Modern wood-fibre mulches are much better than the old
paper or straw mulches
2. Elimination of wind and water erosion
3. Quick and efficient application
4. Quite cheap (Conwed2000 @ 2 t/ha = $2,400)
5. No wheel marks, minimal surface disturbance, corners
covered, and other benefits
6. Sprigging or line-planting jobs often go bad
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Trial 1: Sand-based soccer
ground in Melbourne
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25th NovemberPrincess77 @ 40kg/ha
Conwed2000 @ 2t/ha
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Princess-77 at 14 days
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AgriDark at 6 weeks
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Santa Ana at 6 weeks
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Princess-77 at 6 weeks
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Santa Ana at 9 weeks
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Princess-77 at 9 weeks
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Princess-77 at 9 weeks
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Santa Ana vs Princess-77 at 11 weeks
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Princess-77 at 11 weeks
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Santa Ana at 11 weeks
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Princess-77 vs Santa Ana at 14 weeks
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Rhizomes forming in Princess-77 at 14 weeks
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Kikuyu in Santa Ana
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Princess-77 vs Santa Ana at 16 weeks
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0 2 4 6 8 10 12 14 16 180
20
40
60
80
100
120
Santa Ana Princess AgriDark
Weeks after sowing
Gro
undc
over
%
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Second trial: Seaside Park, Auckland
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Ten things we learned or confirmed:
1. A sowing rate of 40kg/ha is adequate
2. Princess-77 germinates well in the hydromulch
3. Treat it as if it was bentgrass for the first 2 weeks
4. Princess should be ready for first cut in 6-7 weeks
5. Princess will outcompete the majority of weeds
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6. Hydromulching keeps wheels off a lasered surface
7. Hydromulch protects sand from wind or water erosion
8. Use a hydromulcher with wood-fibre mulch capability
9. Poor design or management will show up badly
10. Don’t blame Princess-77 for poor design or management
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The next phase is perennial ryegrass oversowing for winter.
The concept is a three way package using Princess-77, Conwed2000
hydromulch, then ongoing ryegrass oversowing for winter.
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Should you oversow a couch field in its first year?
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