Soil/Plant Nutrition Cont'd Flashcards
This is an aggregate of two or more minerals.
Rock
This is a complex mixture of particles, composed of inorganic and organic constituents.
Soil
This process releases mineral nutrients and creates a substance more amenable for life.
Weathering
Heat, ice and pressure are factors of what type of weathering.
Physical Weathering
This type of weathering creates smaller particles and releases nutrients into soil.
Chemical Weathering
This type of weathering is a result of of a variety of organisms aiding in soil production.
Biotic Weathering
This soil is soft in consistency and fosters tooth growth.
Humus
This horizon of soil is considered to be “top soil”, it is made up of humus and broken down rocks.
A Horizon
This horizon of soil is made up of less organic matter and is mostly rock.
B Horizon
This horizon of soil is made up of partially broken down rock.
C Horizon
What are the 3 major soil particles?
Sand
Silt
Clay
This is the dissolution and removal of inorganic ions as water moved through soil.
Leeching
This process is the replacement of mineral cations by H+ ions.
Cation Exchange
This is a symbiotic relationship in which both participants benefit.
Mutualistic Relationship
This is a narrow region of soil that is directly influenced by root secretions and associated soil microorganisms.
Rhizophere
These form mutualistic relationships with roots and play a major role in plant nutrition.
Soil Fungi
These are the mutualistic associations of roots and fungi.
Mycorrhizae
This type of mycorrhizae grow on the root surface.
Ectomycorrhizae
This type of mycorrhizae grow into the root cortex.
Arbuscular Mycorrhizae
These are specialized structures for nutrient transfer.
Arbuscules
These grow attached to other plants but NOT SOIL and are NOT PARASITES.
Epiphytes
These grow attached to other plants and obtain their source of nutrients from the host.
Parasite
These obtain some nitrogen and minerals from killing/digesting small animals.
Carnivorous Plants
