Soil Parts
What is the largest soil compnent?
Minerals are 45% of soil.
What side are the Clay percentages on?
Left
What is crop rotation?
Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons.
What does dark soil indicate?
High in nutrients and holds water well.
What is Soil Fertility?
The ability to support plant growth.
What fills the spaces between the solid particles?
Water and Air!
What side are the silt percentages on?
Right
What do Soil Organisms do for the soil?
They decompose dead plants so the minerals can be reused.
O Layer?
Contains organic matter!
What is Soil Erosion?
Removal of soil by water and wind.
What are the three main types of mineral materials?
Sand, Silt, and Clay
What side is the percentages of sand on?
Bottom.
Why does soil need a balanced pH?
Most plants thrive in slightly acidic soil because that pH affords them good access to all nutrients.
Name the Rest of the layers and what they contain.
A layer (Top Soil), B Layer (Subsoil), and C Layer ( Bedrock and parent material)
Name the 4 different kinds of Erosion.
Sheet, Rill, Gully, and Sandblows
What does clay do for the soil?
It gives the soil the ability to hold water.
What are the 4 major minerals?
Calcium, Phosphorous, Nitrogen, and Potassium.
What is salinity management?
Soil salinity control relates to controlling the problem of soil salinity and reclaiming salinized agricultural land.
What does soil color come from?
Minerals and Organic Matter.
What pH level is neutral?
7
What is the largest sized mineral particle in soil?
Sand
What is Organic Matter?
Plant and animal remains
Try and name all 10 ways to conserve soil! (at least 7 for points)
Plant trees, Terraces, No/Minimal Till Farming, Contour Plowing, Crop Rotation, Soil pH, Water In Soil, Salinity Management, Soil organisms, and Indigenous Crops.
What is Soil Degradation?
The decline in soil quality caused by its improper use.
What is the BEST soil pH level?
6.6