Soil Sizes
The biggest sediment size
This is the uppermost "organic" layer that consists of mostly dead plant and animal matter.
What is Horizon O?
This is the breaking down of rock.
What is WEATHERING?
What is another name for organic matter?
What is HUMUS?
A method to protect fields and crops from wind erosion.
What is a WINDBREAK?
The smallest sediment size
The topsoil that consists of minerals and organic matter. Is the layer normally plowed or tilled. Seeds germinate in this layer.
What is HORIZON A?
This is the movement of weathered material by water, wind, ice, or gravity.
What is EROSION?
The 1-6 values on the pH scale are considered what.
What is ACIDIC?
What are NUTRIENTS?
The medium sediment size
What is SILT?
The layer of soil beneath the topsoil that contains mostly clay and other minerals.
What is HORIZON B OR SUBSOIL?
True or False: Weathering takes a short amount of time.
What is FALSE?
Gaps between soil particles
What is PORE SPACE?
Farmers using this method til or churn up the soil as little as possible, as to prevent erosion and water loss.
What is CONSERVATION TILLAGE?
Soil that is a mixture of clay, sand, and silt
What is LOAM?
This layer is made up of partially weathered rock. Has no organic matter and does not sustain life.
What is HORIZON C or PARENT MATERIAL?
The primary material from which soil is formed.
What is parent material?
Soil pH affects which of the following soil characteristics: water holding capacity, nutrient availability, texture, or color.
What is NURTIENT AVAILABILTY?
Farmers can use this method to effectively plant crops on the side of a mountain.
What is TERRACE FARMING?
This is the texture of soil with larger particles (sand)
What is gritty?
What lies beneath the soil and is made of hard, solid rock.
What is HORIZON R OR BEDROCK?
What are 3 agents/causes of weathering?
What is wind, water, ice, chemicals, plants, and/or animals?
The process in which water dissolves and carries nutrients from the topsoil down through the subsoil.
What is LEACHING?
Using this method, farmers plow rows/lines that work with the natural shape of the land?
What is CONTOUR PLOWING?