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Bioenergy > Lecture 12 > Flashcards

Lecture 12 Flashcards

1
Q

How many acres do the top 5 crops take up in the US

A

More than 275

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2
Q

How many of the top 5 crops are harvested for their seeds

A

4

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3
Q

What is the only top 5 crop not harvested for its seeds

A

Hay

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4
Q

The ____ portion of corn, soy, wheat, and cotton can be used to produce bioenergy

A

Lignocellulosic

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5
Q

Top producer of corn in the world

A

Corn

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6
Q

How many farms grow corn

A

400,000

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7
Q

What percentage of the corn produced is used to feed animals

A

~80%

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8
Q

Nongrain portion of corn

A

Corn stover

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9
Q

What is corn stover commonly used for

A

Cattle feed

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10
Q

What does removal of stover do to the quality and erosion of soil

A

Unknown

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11
Q

What takes up more acres in the US, soybeans or corn

A

Equal

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12
Q

How many farms produce soybeans in the US

A

350,000

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13
Q

Soybean oil represents ___% of all edible oil produced in the US

A

79%

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14
Q

How many tons of soy meal are used to feed livestock annually

A

30 million

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15
Q

How many farms produce wheat in the US

A

240,000

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16
Q

What % of the world’s wheat is produced in the US

A

13%

17
Q

How much of the wheat in the US is used for human food

A

70%

18
Q

How much of the wheat in the US is used for animal feed

A

22%

19
Q

How much of the wheat in the US is used for seed

A

8%

20
Q

What part of wheat has value as a bioenergy feedstock

A

Straw

21
Q

Other uses of straw in wheat

A

Feed for livestock, bedding for animals, shoes, roofing material, specialty products

22
Q

How many farms produce cotton in the US

A

32,000

23
Q

What percent of the world’s cotton supply is produced in the US

A

20% (over 7 billion pounds a year)

24
Q

Breakdown of cotton uses

A

60% clothing
28% home furnishings
8% industrial products

25
Q

What is cottonseed oil used for

A

Food (meal for livestock)

Bioenergy (22 decks)

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