Erosion
This type of erosion involves surface water or wind peeling off thin layers of soil.
What is sheet erosion?
The length of time required to form one inch of good topsoil.
100-1000 years
Three nutrients that plants need.
What are Nitrogen, Phosphorus and Potassium?
This type of weathering involves the process of breaking down rocks into smaller fragments without changing their chemical composition.
What is physical weathering?
The ideal pH for soil.
What is between 6-7? (SIX SEVEN SIX SEVEN SIX SEVEN)
This type of erosion involves fast-flowing little rivulets of surface water making small channels.
What is rill erosion?
Soil Type found in a Coniferous Forest.
Thin with acid from pine needles.
Stunted growth occurs in a plant lacking this nutrient.
What is phosphorus?
This is nutrient rich soil formed by the complete decomposition of plant and animal matter.
What is humus?
This is added when your soil is too acidic.
What is lime (CaCO3)?
This type of erosion involves fast-flowing water joining together to cut wider and deeper ditches or gullies.
What is gully erosion?
The last layer in a soil profile going from top to bottom.
What is bed rock?
The nutrient that shows up LAST on a fertilizer bag.
Ex: 12-0-20
What is potassium?
The negative effect of commercial fertilizer use.
What is fertilizer runoff?
This is added when your soil is too basic/alkaline.
What is sulfur?
This technique involves a mixture of wildflowers and prevents soil erosion by managing soil fertility.
What are cover crops?
Soil Type found in a tropical rainforest.
What is acidic, light colored humus?
The nutrient that human fertilizer lacks.
What is potassium?
The effects of fertilizer runoff.
What are algal blooms and eutrophication?
These are the signs of soil salinization.
What are cracked, white soil?
Method of planting fields to conform to the natural topography rather than going up/down.
What is contour planting?
Soil Type found in the Desert.
What is very dry, reddish brown soil?
Diluting the fertilizer with water solves this problem in plants.
What is a chemical burn/white spots?
The benefits of earthworm use in organic farming.
What are tilling and aerating the soil AND vermicomposting?
This organism allows for better absorption of nutrients and minerals.
What are mycorrhizae fungi?