Agronomy 182 Exam 3 - PE 1 & 2 | Questions And Answers Latest {2024- 2025} A+
Graded | 100% Verified
Available water for plant growth is defined as: - that moisture between field capacity and the wilting
point.
Water molecules: - are dipolar and have an asymmetrical charge distribution
An Alfisol is most noted for its: - high base argillic horizon.
Rain drop splash is most easily reduced by: - vegetation on the soil surface.
The most costly erosion control method to implement is: - construction of terraces.
The Universal Soil Loss Equation estimates the average soil loss over a ____ year period. - 20
A soil is classified as a Hydric Borofibrist. At the suborder level this soil would be classified as a (an): -
Fibrist
Which of the following would probably exhibit the greatest degree of development of the profile? -
Alfisol
Compare the total amount of organic matter in a grassland and a forest derived soil. The grassland soil
will contain ____ organic matter as the forest derived soil. - twice as much
To which order do the Fragiochrepts belong? - Inceptisols
Which of the following soils contains an argillic horizon?
1: A, 5%, 20, B, 2%, 15, 12;
2: A, 3%, 30, 2, B, 1%, 50, 3;
3: A, 6%, 29, 5, B, 4%, 34, 4 - Soil 2
, Grassed waterways can be destroyed by: - herbicides.
Consider a soil classified as a Natrixeralf. This soil belongs to the order: - Alfisol
Sediments removed by erosion are generally ____ in nutrients compared to the bulk of the soil. - richer
Ultisols almost always require ____ in order to be productive. - added fertilizer
Which of the following is most likely to change in soil texture as one moves away from the source of the
parent material? - loess
Other conditions being optional, corn will reach maturity most years on an undrained soil in a (an) ____
moisture region. - Udic
A soil is classified as an Alic Hapludand. At the suborder level this soil would be classified as a (an): -
Udand
A soil developed in organic rather than mineral parent materials would be a (an): - Histosol.
A soil moisture tension of 15 atmospheres would be the tension expected at: - the permanent wilting
point
What is the factor that differentiates soil from loose geologic material? - living organisms
Forest fires in the late summer and mud slides in the winter is most common in which moisture region? -
Xeric
A mineral soil with a deep, dark, basic, organic rich surface horizon would be a (an): - Mollisol
Ultisols are generally found: - On older land surfaces
Graded | 100% Verified
Available water for plant growth is defined as: - that moisture between field capacity and the wilting
point.
Water molecules: - are dipolar and have an asymmetrical charge distribution
An Alfisol is most noted for its: - high base argillic horizon.
Rain drop splash is most easily reduced by: - vegetation on the soil surface.
The most costly erosion control method to implement is: - construction of terraces.
The Universal Soil Loss Equation estimates the average soil loss over a ____ year period. - 20
A soil is classified as a Hydric Borofibrist. At the suborder level this soil would be classified as a (an): -
Fibrist
Which of the following would probably exhibit the greatest degree of development of the profile? -
Alfisol
Compare the total amount of organic matter in a grassland and a forest derived soil. The grassland soil
will contain ____ organic matter as the forest derived soil. - twice as much
To which order do the Fragiochrepts belong? - Inceptisols
Which of the following soils contains an argillic horizon?
1: A, 5%, 20, B, 2%, 15, 12;
2: A, 3%, 30, 2, B, 1%, 50, 3;
3: A, 6%, 29, 5, B, 4%, 34, 4 - Soil 2
, Grassed waterways can be destroyed by: - herbicides.
Consider a soil classified as a Natrixeralf. This soil belongs to the order: - Alfisol
Sediments removed by erosion are generally ____ in nutrients compared to the bulk of the soil. - richer
Ultisols almost always require ____ in order to be productive. - added fertilizer
Which of the following is most likely to change in soil texture as one moves away from the source of the
parent material? - loess
Other conditions being optional, corn will reach maturity most years on an undrained soil in a (an) ____
moisture region. - Udic
A soil is classified as an Alic Hapludand. At the suborder level this soil would be classified as a (an): -
Udand
A soil developed in organic rather than mineral parent materials would be a (an): - Histosol.
A soil moisture tension of 15 atmospheres would be the tension expected at: - the permanent wilting
point
What is the factor that differentiates soil from loose geologic material? - living organisms
Forest fires in the late summer and mud slides in the winter is most common in which moisture region? -
Xeric
A mineral soil with a deep, dark, basic, organic rich surface horizon would be a (an): - Mollisol
Ultisols are generally found: - On older land surfaces
