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Turf Dr. K Exam # 1 Fall 2013 > Exam # 1 > Flashcards

Exam # 1 Flashcards

1
Q
  • Turfgrasses

- Turf

A
  • Plant by itself that persistsunder regular mowing

- an interconnecting community of turfgrasses

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2
Q

Sod

A

The surface layer of turf harvested for transplanting

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3
Q

Types of turfgrasses

A

-utility
-lawn
sports

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4
Q

Visual turf qualities

A
  • density
  • texture
  • uniformity
  • color
  • grouth habit
  • smoothness
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5
Q

Functional turf qualities

A

-rigidity
-elasticity
-resiliency
-ball roll
yield
-verdure
-rooting
recuperative capacity

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6
Q

Uniformity

A

estimate of the even appearance of turf

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7
Q

color

A

measure of light reflected by turfgrass

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8
Q

grouth habit

A

-type of shoot growth
-three growth habits
stolon rhizome bunch type

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9
Q

smoothness

A

surface feature of a turf that effects visual quality and playability

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10
Q

rigidity

A

the resistance of the turfgrass leaves to compression

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11
Q

elasticity

A

tendancy of the turfgrass leaves to spring back once a compression force I removed

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12
Q

reciliency

A
  • obsorb shock without altering its surface

- largely associated with growing medium

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13
Q

ball roll

A

average distance ball travelsupon being released to a turf surface

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14
Q

yield

A

measure of clippings removed with mowing

  • indication of grouth
  • not direct with turf health
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15
Q

verdure

A

measure of the arial shoots remainin g after mowing

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16
Q

rooting

A

amount of root grouth evident at any one time during the growing season

17
Q

recuperative capacity

A

capacity of turfgrass to recover from damage caused by disease organisms, insects traffic, or similar agents

18
Q

Turfgrass management

A

the range of activities, including cultural practices, for establishing and sustaining turf at a desired level of quality

19
Q

missmanagement

A
  • selection of poor adapted species
  • improper establishment procedures
  • mistake in the selection in or implimations of pestecides
20
Q

turf primarily practices

A
  • mowing
  • irrigation
  • fertility
21
Q

mowing

A
  • the periodic removal of a portionof turfgrass shoot grouth

- has the most influenceof all the cultural practices on a turfgrass stand

22
Q

puspose of mowing

A
  • maintain top grouth
  • control unwanted vegetation
  • sustain desire quality
  • produce true putting surface
23
Q

Patterns of mowing

A

shadow cut-uno pa otro

block out-two directions

24
Q

First mower

A

Edward Budding
1830
carpet

25
Q

3 Types of Mowers

A

Rotary
reel
Fleil

26
Q

Reel mower

A

ednife with rotating reel cylinder

27
Q

Quality of cut
Sharpness
-too tight
-too loose

A
  1. Accelerated wear of cutting surface
  2. excessive build of heat
  3. Increase power requirement
  4. torn or bruce leaves
  5. Tip discoloration
  6. overall stuning of grouth
28
Q

MH

A

mowing height

29
Q

CR

A

clip of the reel

  • forward distance traveled betweensuccessive clips
  • Determined by
    1. # of blades of reel
    2. velocity of location
    3. forward speed of mowing
30
Q

Uniformity of cut

A

CR=MH most uniform cut
CR>MH marcelling choppy
CR<MH regged cut reels fast slow driving

31
Q

Frequency of cut

A

FC=# of clips per unit distance

CR=distance traveled between clips

32
Q

If reel makes two clips per inch

What is the CR?

A

CR(clip of reel) is 1/2 inch

33
Q

Flail Mowers

A
  • cuts by impact
  • small knifes hinged to horizontal shaft
  • when rotating centrifugal force takes ovr
34
Q

Lowering mowing heights

  • advantages
  • disadvantages
A

-stimulates Arial shoot growth
-increase shoot density
small shoot size
+decrease root and rhizome growth
+decrease carbohydrates reserve
+increase plant succulent

35
Q

mowing patterns (DEFINE)

A

-mowing orients Arial shoots toward the direction of travel

36
Q

Mowing Patterns

CLASSES

A
  • Class C no stripes 50/50
  • PGA dark stripes, cross patterns
  • overkill-stripe everything
37
Q

CLIPPINGS

A

-Serve as plant nutients
+dried clippings contain3 to 5 % nitrogen
-removal requires more fert applications
-clippings are not related to thatch

Turf Dr. K Exam # 1 Fall 2013 (1 decks)

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