A soil has a bulk density of 1.7 g/cm3. One would expect plant growth to:
Answer: be restrict...
Organic soils often have a bulk density as low as g/cm3.
Organic soils often have a bulk density as low as _____ g/cm3.
Answer: 0...
A soil has bulk density of 1.9 g/cm3. One would expect plant growth to:
A soil has bulk density of 1.9 g/cm3. One would expect plant growth to:
Answer: cea...
A soil has a bulk density of 1.5 g/cm3. One would expect plant growth to:
A soil has a bulk density of 1.5 g/cm3. One would expect plant growth to:
Answer: be norm...
Root growth usually ceases when the bulk density of a soil gets above ________ g/cm3.
Root growth usually ceases when the bulk density of a soil gets above ________ g/cm3.
Answer: 1....
Root growth usually is normal as long as the bulk density of a soil remains below _______ g/cm3.
Root growth usually is normal as long as the bulk density of a soil remains below _______ g/cm3.
Answer: 1...
Within limits, as one fluffs up a soil it will hold more:
Within limits, as one fluffs up a soil it will hold more:
Answer: available wat...
A soil has 35 percent pore space. One would expect plant growth to:
A soil has 35 percent pore space. One would expect plant growth to:
Answer: be restrict...
Within limits, as the micropore space in a soil increases total water holding capacity:
Within limits, as the micropore space in a soil increases total water holding capacity:
Answer: increas...
A soil has a bulk density of 1.3 g/cm3. One would expect plant growth to:
A soil has a bulk density of 1.3 g/cm3. One would expect plant growth to:
Answer: be norm...
Root growth is restricted when the when the percent pore space of a soil gets below _________.
Root growth is restricted when the when the percent pore space of a soil gets below _________.
Answer: 4...
Root growth is restricted when the bulk density of a soil gets about ______ g/cm3.
Root growth is restricted when the bulk density of a soil gets about ______ g/cm3.
Answer: 1...
An acre furrow slice weighs about:
An acre furrow slice weighs about:
Answer: 1,000 to...
An ideal soil would be expected to have a particle density of _________ g/cm3.
An ideal soil would be expected to have a particle density of _________ g/cm3.
Answer: 2.65
...
A particle density of a soil is influenced by the:
A particle density of a soil is influenced by the:
Answer: mineral and organic matt...
Compacting a soil increases its:
Compacting a soil increases its:
Answer: bulk densi...
Particle density is the _________ divided by the volume of the solids.
Particle density is the _________ divided by the volume of the solids.
Answer: weight when the soil is oven d...
An acre furrow slice weighed 1,847,000 lbs. This value is:
An acre furrow slice weighed 1,847,000 lbs. This value is:
Answer: lower than expected for an idealized so...
As the percent of iron oxides in a soil decreases the particle density _________.
As the percent of iron oxides in a soil decreases the particle density _________.
Answer: increases
...
A soil lost 5 tons/acre from erosion. This is _________ % of the weight of an AFS.
A soil lost 5 tons/acre from erosion. This is _________ % of the weight of an AFS.
Answer: 0...
An acre furrow slice is a volume of soil one acre in area to an approximate depth of:
An acre furrow slice is a volume of soil one acre in area to an approximate depth of:
Answer: about ...
The bulk density of a soil is the oven dry weight of a soil divided by the:
The bulk density of a soil is the oven dry weight of a soil divided by the:
Answer: volume of the soil solids plus the volume of the soil po...
As the percent organic matter in a soil increases the particle density __________.
As the percent organic matter in a soil increases the particle density __________.
Answer: decreas...
Two soils are identical except one has a bulk density of 83.7 lbs/ft3 and the other has a bulk density of 96.4 lbs/ ft3. Which has the most pore space?
Two soils are identical except one has a bulk density of 83.7 lbs/ft3 and the other has a bulk density of 96.4 lbs/ ft3. Which has the most pore space?
Answer: The...
Plowing a soil _______ the particle density of the soil.
Plowing a soil _______ the particle density of the soil.
Answer: does not chan...
Bulk density is the _______ divided by the total volume of the soil.
Bulk density is the _______ divided by the total volume of the soil.
Answer: weight when the soil is oven d...
An idealized soil with 50% pore space would be expected to have a bulk density of _________ g/cm3.
An idealized soil with 50% pore space would be expected to have a bulk density of _________ g/cm3.
Answer: 1.3...
A soil with a particle density of 3.0 g/cm3 is likely to be rich in:
A soil with a particle density of 3.0 g/cm3 is likely to be rich in:
Answer: ir...
Compacting a soil decreases its:
Compacting a soil decreases its:
Answer: percent pore spa...
Two soils are identical except one has a bulk density of 1.2 g/cm3 and the other has a bulk density of 1.4 g/cm3. Which has the most pore space?
Two soils are identical except one has a bulk density of 1.2 g/cm3 and the other has a bulk density of 1.4 g/cm3. Which has the most pore space?
Answer: The...
A soil with particle density of 2.0 g/cm3 is likely to be rich in:
A soil with particle density of 2.0 g/cm3 is likely to be rich in:
Answer: organic matt...
The particle density of a soil is the oven dry weight of a soil divided by the:
The particle density of a soil is the oven dry weight of a soil divided by the:
Answer: volume of the soil soli...
The particle density of an average soil is __________ g/cm3.
The particle density of an average soil is __________ g/cm3.
Answer: 2....
A micropore:
A micropore:
Answer: contains both available and unavailable wat...
When a soil is field moist, it contains:
When a soil is field moist, it contains:
Answer: both available and unavailable wat...
At saturation ___________ are filled with water.
At saturation ___________ are filled with water.
Answer: both macropores and micropor...
A macropore:
A macropore:
Answer: is primarily for movement of soil gas...
Roots grow primarily in the:
Roots grow primarily in the:
Answer: aeration pores
...
Most of the water in the soil is stored in the:
Most of the water in the soil is stored in the:
Answer: capillary por...
A macropore:
A macropore:
Answer: is important for soil aeratio...
At field dry _______ are filled with water.
At field dry _______ are filled with water.
Answer: micropor...
An idealized soil would be expected to contain about _________ solids.
An idealized soil would be expected to contain about _________ solids.
Answer: 5...
At field moist _________ are filled with water.
At field moist _________ are filled with water.
Answer: micropor...
An idealized soil would be expected to have about _______ of its pore volume occupied by air.
An idealized soil would be expected to have about _______ of its pore volume occupied by air.
Answer: 3...
A capillary pore:
A capillary pore:
Answer: is also called a micropo...
An idealized soil would be expected to contain about _______ organic matter.
An idealized soil would be expected to contain about _______ organic matter.
Answer: ...
Most of the gases in the soil move in the:
Most of the gases in the soil move in the:
Answer: macropor...
At field dry, the soil contains:
At field dry, the soil contains:
Answer: unavailable wat...
An idealized sold would be expected to contain about ________ unavailable water.
An idealized sold would be expected to contain about ________ unavailable water.
Answer: 16 2/...
An idealized soil would be expected to have about ________ of its pore volume occupied by unavailable water.
An idealized soil would be expected to have about ________ of its pore volume occupied by unavailable water.
Answer: 3...
An idealized soil would be expected to contain about _________ available water.
An idealized soil would be expected to contain about _________ available water.
Answer: 16 2/...
Most of the water in the soil is stored in the:
Most of the water in the soil is stored in the:
Answer: micropor...
An idealized soil would be expected to contain about ________ mineral matter.
An idealized soil would be expected to contain about ________ mineral matter.
Answer: 4...
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