Soil & Plant Growth

The four components of soil are:

• Mineral matter, air, water, sand

• Mineral matter, organic matter, air, water

• Organic matter, fertilizer, water, oxygen

• Rocks, dirt, air, water

Organic matter includes

• Rocks, stones, pebbles

• Vegetation

• Worms, bacteria, fungi, manure, dead plants

• Living organisms

Drainage refers to what?

• The speed that water passes through soil

• The speed that air passes through soil

The three main fertilizers used in growing plants are N, P and (a)   ?

What does the chemical symbol "N" stand for?

(a)  

What does the chemical symbol "P" stand for?

(a)  

What does the chemical symbol "K" stand for?

(a)  

The four main types of soil are: clay, silt, sand and (a)   ?

Which type of soil has the largest particle size?

• Clay

• Silt

• Sand

• Loam

Which type of soil has the most organic matter?

• Clay

• Silt

• Sand

• Loam