Sandy soil and clayey soil Flashcards

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1
Q

What is the main component of clayey soil?

A

The main component is clay particles

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2
Q

What are the smallest sized particles in clayey soil?

A

diameter < 0.002mm

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3
Q

Are clay particles packed very far from each other?

A

No, they are packed very close to each other, with little spaces in between because the particles are so small.

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4
Q

(clayey soil) Small spaces =

A

Less air

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5
Q

Do small spaces hold less water, true or false?

A

False, Small spaces will hold more water. The water retention in clayey soil is greater than in sandy soil like a “sponge” and causes it to become waterlogged

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6
Q

Is the drainage in clayey soil good?

A

No, there is poor drainage of water, since the spaces are so small.

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7
Q

What is fertile soil?

A

Soil rich in nutrients

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8
Q

What is retained by clayey soil?

A

Nutrients are retained by clayey soil

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9
Q

What is the main component in sandy soil

A

The main component is sand particles

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10
Q

what is the size of fine sand?

A

0.02- 0.2 mm

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11
Q

What is the size of coarse sand?

A

0.2- 2.0 mm

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12
Q

Are sand particles packed closely together?

A

No, and particles are not packed closely together, there are large spaces between them because the particles are large.

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13
Q

Large spaces=

A

More Air, therefore more O2

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14
Q

What is the water retention capacity in sandy soil?

A

Water retention capacity is poor/less than clay soil because large spaces from large particles will hold less water, it acts like a sieve or strainer

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15
Q

Does water drain well in sandy soil?

A

Yes, water drains well in sandy soil since the spaces are large, although nutrients are often washed out of sandy soil (leached out)

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16
Q

What is infertile soil?

A

Infertile soil is soil poor in nutrients.

17
Q

What are the components of loamy soil?

A

Loamy soil consists of

  • 50% sand
  • 30% clay
  • 12% humus
  • 8% lime (calcium carbonate)
18
Q

What determines how close the particles are packed together in loamy soil?

A

The size of particles determines how close the particles are packed together

19
Q

How closely loamy soil particles are packed together determines what?

A

The size of particles

20
Q

the size of spaces in between determine what? (4)

A
  • Amount of air ( Air content)
  • Amount of water retained (water retention)
  • Drainage of soil (drainage)
  • Amount of nutrients in the soil (fertility)
21
Q

What does decomposition do to soil?

A

Decomposition makes the soil more acidic but people add lime to their soil to balance it and still get the effects from the humus