Shared Flashcard Set

Details

SS 131 Midterm 2
balls
12
Agriculture
Undergraduate 1
11/24/2013

Additional Agriculture Flashcards

 


 

Cards

Term
Soil Texture
Definition

Sand Silt Clay measurements

2mm-0.05mm, 0.05mm-0.002mm, >0.002

-classification tools to determine class for agricultural soils based on texture and size.

Term
5 Cementing Agents
Definition

Organic Matter

Alumino Silicate Clay

Lime

Iron/Aluminum Clay

Silica

Term
Structures of Soil
Definition

Massive & Single Grained

 

Granular, Blocky, Columnar, Prismatic, Platy

Term
Bulk Density
Definition

 

oven dried mass of soil (g)

---------------------------------------

soil's total volume (cm3)

Term
Particle Density
Definition

oven dried soil mass (g)

------------------------------------

volume of solids (cm3)

Term
Porosity
Definition

volume of pores in a solid (cm3)

--------------------------------------------

total soil volume (cm3)

 

(1-(Db/Dp))x100%

Term
Macropores
Definition

Sandy Soils

Drainage

Between aggregates

Term
Mesopores
Definition

Loamy, Silty

Plant available water

Inside aggregates

Term
Micropores
Definition

Clayey

Long term water storage

Inside aggregates

Term
ESD
Definition

% θV

                    ------- x Soil Depth

100%

Term
% θM
Definition

Mass of Water (g)

--------------------------

oven dried soil mass (g)

Term
ALF
Definition
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