Week 7 Native Pastures Flashcards

1
Q

Define what is meant by a native pasture

A

Any pastures in which native grasses are the main perennial species
44%

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2
Q

Describe some characteristics of farms with native pastures

A
High rainfall zone
Low input system
Traditionally: large paddocks
Continuously stocked
limited water points
Weather based animal enterprise
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3
Q

List some native grass species

A
Kangaroo grass
Wallaby grass
Microleana
Spear grass
Wire grass
Red grass
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4
Q

Kangaroo Grass

A

Tall C4, warm season, ornamental seed head
Cannot continually graze
Non arable areas

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5
Q

Wallaby Grass

A

C3, very useful
Acid tolerent
Cant Handle water logging

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6
Q

Microleana

Weeping Grass

A

Useful
High quality and productive in winter and spring
Tolerant of heavy stocking
High moisture shaded areas
Tolerant of acidit anfd high alumiuum, drought tolerant

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7
Q

Spear grass

A

Rough, smal leaves, usefully early on then a pain
Useful when young
Shallow poor soils

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8
Q

Wire grass

A

c4, small leaf, not useful

Not palatable

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9
Q

Red Grass

A

c4 Productive in summer, lower quality but useful
COmmon in overgrazed pastures
Mostly stem
Mod Feed quality

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10
Q

Explain why some native pastures are uneconomic to improve

A

Terrain too steep
Acidic
Shallow, low water holding capacity soils

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11
Q

List some benefits of native pastures

A

Productive
Natural resource managment- pereniality, salinity
Biodiversity
Sentimentality

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12
Q

Describe the effect that phosphorus fertiliser has on native pastures

A

Increases production of annuals

Some native grasses will respond

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13
Q

Dec. stocking rate with addition of fert

A

increased sub clover

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14
Q

Outline how grazing management can improve native pastures

A

Rotationally grazing favours perennials

New grazing management will increase infrustructure

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15
Q

Grazing at flowering

A

Dec. %

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16
Q

Most productive native patures

A

Perennial native pasture is 80%