Farming and Food Production Flashcards

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1
Q

What is subsistence farming?

A

Farming that provides enough food for the farmer and his family, but not enough for commercial sale

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2
Q

What is commercial farming?

A

Large scale farming that provides products for sale

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3
Q

What is intensive farming?

A

Farms that can produce large volumes of food or fibre in a small area and require constant attention, such as dairy , poultry or vegetable farms

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4
Q

What is extensive farming?

A

Farms that require large areas of land and does not require much attention, such as cattle farms or sheep farms

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5
Q

What is precision farming?

A

Farms where soil condition is closely monitored allowing for water and nutrients to be added where and when needed rather than putting it across the whole farm

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6
Q

What are the benefits of precision farming?

A

Saves the farmer money and time and also helps the environment by reducing the possibility of nutrient-rich run off into rivers and lakes

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7
Q

What does GPS stand for and what is its purpose?

A

Global positioning system- involves satellites, sensors on planes and drones which collect data on plant growth, soil moisture and nutrient levels

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8
Q

What type of resource is soil?

A

A non-renewable resource

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9
Q

What is the first step in producing soil?

A

The gradual breaking down or weathering of rock

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10
Q

What are cattle tags used for?

A

Electronically identifying domestic livestock and other animals

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11
Q

What is irrigation?

A

The watering of crops by bringing in water from pipes, canals or other man-made means, rather than relying on rainfall alone

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12
Q

What happens as rocks break down into finer particles?

A

Minerals within them become available to plants

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13
Q

What happens to soils over time?

A

They form layers known as horizons

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14
Q

What can be done if soils lack organic matter?

A

Mulch can be added to increase mineral content and prevent water loss through evaporation

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15
Q

What are the characteristics of Australian soils?

A

Low in nutrients, thin and easily eroded

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16
Q

What must Australian farmers do to deal with the tough soil conditions?

A

Continually replace soils and apply fertiliser annually

17
Q

How many farms are there in Australia?

A

135,000

18
Q

Describe the soils in Northern Australia?

A

Among the world’s oldest, have been subject to monsoonal downpours for millions of years, with important nutrients being leached out of the soil

19
Q

What physical and chemical processes can cause weathering?

A

Heating and cooling of rocks, abrasion caused by wind and water and water and acidic solutions dissolving salts in rocks

20
Q

What is the best soil composition for growing crops?

A

LOAM or loamy soil which has good water drainage, good nutrients levels and good water holding ability

21
Q

What is soil salinity?

A

Increasing salt levels in the soil, that prevent, reduce or stop plant growth

22
Q

What is primary salinity caused by?

A

Natural conditions that develop over time

23
Q

What is secondary salinity caused by?

A

Human impacts such as excessive irrigation

24
Q

How much percent of available fresh water is used for agriculture?

A

70 percent

25
Q

What is the definition of food security?

A

When people have access to safe nutritious food all the time

26
Q

What are the 3 things required for food security?

A

Food availability, food accessibility, using food appropriately

27
Q

What does food availability mean?

A

People have enough food of appropriate quality available on a consistent basis, including production, storage, distribution and exchange

28
Q

What does food accessibility mean?

A

Physical and economic access to food, enough food is available within reach of those who need it

29
Q

What does using food appropriately mean?

A

Using food safely and applying knowledge about nutrition, clean water and sanitation when preparing food