Question 1

Soil tilth refers to _____.

Accepted Answer

A) the bearing strength of a soil under a given downward force 
B) the moisture content at which a soil is best suited for tillage 
C) ratio of bulk density to particle density 
D) the physical suitability of a soil for plant growth 
E) micro-aggregates produced as a by-product of tillage 
A) the bearing strength of a soil under a given downward force 
B) the moisture content at which a soil is best suited for tillage 
C) ratio of bulk density to particle density 
D) the physical suitability of a soil for plant growth 
E) micro-aggregates produced as a by-product of tillage

Question 2

Which color would be typical of a well drained,low-organic matter sandy surface soil?

Accepted Answer

A) 10YR5/8 
B) 7.5YR6/2 
C) 2.5YR6/1 
D) 7.5YR2/2 
E) 10YR8/4 
A) 10YR5/8 
B) 7.5YR6/2 
C) 2.5YR6/1 
D) 7.5YR2/2 
E) 10YR8/4

Question 3

Brown and red colors in subsurface horizons are caused by __ in the soil.

Accepted Answer

A) manganese 
B) aluminum oxides 
C) organic matter 
D) clay 
E) iron oxides 
A) manganese 
B) aluminum oxides 
C) organic matter 
D) clay 
E) iron oxides

Soil tilth refers to _____.

Which color would be typical of a well drained,low-organic matter sandy surface soil?

Brown and red colors in subsurface horizons are caused by __ in the soil.

The Soils Around Us

Formation of Soils From Parent Materials

Soil Classification

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

The Colloidal Fraction: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regionsalkalinity,salinity and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Calcium,magnesium and Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Soils and Chemical Pollution

Geographic Information About Soils

Prospects for Global Soil Quality As Affected by Human Activities

Filters

Exam 4: Soil Architecture and Physical Properties

Soil tilth refers to _____.

Which color would be typical of a well drained,low-organic matter sandy surface soil?

Brown and red colors in subsurface horizons are caused by __ in the soil.

The Soils Around Us

Formation of Soils From Parent Materials

Soil Classification

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

The Colloidal Fraction: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regionsalkalinity,salinity and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Calcium,magnesium and Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Soils and Chemical Pollution

Geographic Information About Soils

Prospects for Global Soil Quality As Affected by Human Activities

Filters