Soil Layers
what is organic matter?
mater from living organisms, including plants and animals
examples - plants roots, leaves , animals
what are macropores
large pores that allow water and air movement
Why is only water held between field capacity and wilting point considered to be plant available
water held between these two states is retained against the force of gravity but not so tightly that it cannot be extracted by plants
What is soil PH
ons that have positive and negative charges that influences the acidity and alkalinity of a soil
How much water can your soil hold
It varies it depends on the soil textures.
the lowest layer of soil and is made up of ?
tightly bound , breakable materials
what are pores
gaps between peds that hold water and air
what is Capillary water
held in the soi; against gravitational pull and most of this water is available to plants found in the micropores or small pore spaces
What does soil PH do
fluences plant growth by indirectly affecting the availability of plant nutrients for uptake and activity of microorganisms in soil
What are some types of soil texture?
Loamy ,clay and silty
what is bedrock
the lowest layer of soil and is made up of tightly bound unbreakable materials
which soil particles are the smallest
clay
what is Field capacity
amount of water remaining in the soil a few days after a rain once drainage from gravitational forces has finished
What is soil media
the material that plants grow in
How can you evaluate soil texture?
Perform a jar test by mixing a soil sample with water and leaving it to settle
what is the organic layers
plant litter which has accumulated on the soil surface and the top layer only organic matter
What are the three layers form the soil profile?
What are the three layers form the soil profile?
what is Permanent wilting point
he water content of a soil when most plants growing in that soil wilt and fail to recover after water
What are examples of soil media-
air ,nutrients, water
what is Permanent wilting point
the water content of a soil when most plants growing in that soil wilt and fail to recover after water
the R horizon is made of ?
hard rock, such as granite, basalt , quartzite , limestone or sandstone that cant be excavated by hand
How does a sandy soil feel like to touch
t may feel sandy feel little rocky. Its very similar to the sand at the beach
Water
holding capacity-the portion of water that can be taken up by plant roots
How is soil PH measured
it can be measured on a scale from 1-12 7 is neutra
What do plants absorb in carbon recycling
carbon dioxide