Test 4 Flashcards by Megan Baker

Q

Ph indicate?

A

Quantity of h+ ions

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Q

Ph indicate?

A

Acidity of the soil

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Q

Ph of 3 vs ph of 5

A

100

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Q

Chemical equation of neutralization

A

Acid + base = salt + h2o

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Q

Sources of acids

A

Acid rain
Om
Fertilizer

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Q

Low ph causes?

A

Alteration of nutrient to cause them to become unavailable

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Q

Micronutrients

A

Copper

Iron

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Q

Low ph effect microorganisms

A

Less activity

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Q

Lime

A

Reduces soil acidity

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Q

Lime reduces ph by

A

Oh- bonds with h+ to neutralize

Calcium removes h+ from CEC

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Q

Soil over liming =

A

Soil structure collapse

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Q

Liming materials

A

Calcium carbonate
Dolomite
Calcium hydroxide
Calcium oxide-best

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Q

Lime effectiveness

A

Purity

Finess

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Q

Reduce effect w/o changing ph

A

Ph tolerant plants

Add gypsome

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Q

Om helps?

A

Whc

CEC

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Q

Reside composed of?

Study These Flashcards

A

Carbohydrates

Ligdons

Q

Om decomposition process? Carbon

Study These Flashcards

A

Co2 increase

**

Q

Low aeration effect on decomposition?

Study These Flashcards

A

Slows process

Q

C/n connected?

Study These Flashcards

A

Microns need nitrogen to consume carbon

Q

Groups of c/n

Study These Flashcards

A

10: 1 decomposed
20: 1 fast
30: 1 get from soil

Q

Humus

Study These Flashcards

A

Om resistant to decomposition

Q

Benefit of om

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A

Adds nutrient to soil

Q

Not want om?

Study These Flashcards

A

Cost

Allopasity

Q

Agroecosystem to global ecosystem?

Study These Flashcards

A

Total om is declining

N do plant prefer

No3 best | No2

N for plants sources?

Climatic | Synthetic fertilizers

N conversion in biological fixation

N2 to NO3

Bf sources of n

Soil

Free living organisms

Blue green algie

N in inorganic form?

2-5%

What is mineralization?

Conversion of organic n to mineral n

Nitrification

Nh3-no2-no3

Causes change in inorganic n?

Micron activity

Sulfur function

Photosynthesis

Sulfur use and chemical form

Leaves- so2 | Roots- so4-