Ag 5.2- Soil Science

What is the term defining the structure and form of soil?

• Hue

• Texture

• Sand

• Loam

What are the three soil particles?

• Sand

• Silt

• Clay

• Gravel

Which particle is the most porous and allows for the most water to travel between them?

• Sand

• Silt

• Clay

• Concrete

Water held in the soil because the soil’s surface tension properties (cohesion and adhesion)are stronger than the force of gravity is called?

• Capillary Water

• Hygroscopic Water

• Gravitational Water

Free water moving through soil by the force of gravity is called?

• Gravitational Water

• Hygroscopic Water

• Capillary Water

What type of water can escape from the soil?

• Gravitational Water

• Capillary Water

• Hygroscopic Water

What type of water is used by plants?

• Capillary Water

• Hygroscopic Water

• Gravitational Water

What is hygroscopic water?

• Water held in the soil because the soil’s surface tension properties (cohesion and adhesion)are stronger than the force of gravity

• Free water moving through soil by the force of gravity

• Water is adhered to the soil so well that it is generally not available to plants.

What are the primary nutrients required for plant growth?

• Nitrogen

• Phosphorus

• Potassium

• Argon

What macronutrients can be absorbed atmospherically?

• Carbon

• Oxygen

• Hydrogen

• Potassium