This document defines and describes different types of soil: sandy soil, silty soil, clay soil, and loam. Sandy soil is composed of particles between 2.0-0.05 mm and drains well, making it suitable for crops like watermelon and dairy farming. Silty soil feels smooth and contains particles smaller than sandy soil, providing fertile soil for plant growth. Clay soil exhibits plasticity when wet and becomes firm when dry, supporting crops like lettuce and beans. Loam is an ideal soil composition with equal parts sand, silt, and clay, allowing for moisture retention and air flow to plant roots. The document aims to educate about soil classification and its importance for agriculture and life.

1. Classification of
soil
Prepared by:
EZRA SHARIN M. MARATO

2. OBJECTIVES:
At the end of the lesson the learners
must have to:
Define the meaning of the soil.
Identify the different types of soil.
Appreciate the importance of the soil.

3. What is soil?
Soil is a mixture of minerals,
organic matter, gases, liquids,
and countless organisms that
together support life on Earth.
Soil is called the "Skin of the
Earth"

4. SANDY SOIL
ois a naturally occurring granular material
composed of finely divided rock and
mineral particle.
osoils with particle sizes ranging from 2.0 to
.05 mm.
othis type of soil is easy to cultivate but, since
it allows for more drainage than needed, it is
important to water it regularly, especially
during summer days.

5. It is defined by size, being finer
than gravel and coarser than silt.
In terms of agriculture:
 Sandy soil is ideal for crops such
as watermelon, peaches, and
peanuts, and their excellent
drainage characteristics make them
suitable for intensive dairy farming.

6. Sand Dunes in the Idehan Ubari,
Libya

7.  Arenosols or sandy soils occur throughout Europe.
However, in many parts of the world, Arenosols
present major problems for agriculture. The
picture shows an Arenosol in southern Africa.

9. SILTY SOIL
is one of the most fertile of soils. It can
occur in nature as soil or as suspended
sediment in water column of water body on
the surface of the earth. It is composed of
minerals like quartz and fine organic
particles.
Silty soil has much smaller particles than
sandy soil so it’s smooth to the touch. When
moistened, it’s soapy slick. When you roll it
between your fingers, dirt is left on your
skin.

10. Texture: Silt soil is finer than sand, and feel
smooth and silky.
Color: Usually a brown to black in color.
Structure: Silt soil is similar to loam but
contains smaller ratios of both sand and clay
particles.
is granular material of a size somewhere
between sand and clay.
serves as a smooth, water-rich and fertile
soil that is able to be used for growing most
kind of plants.

11. Silt lines the pond on the Dick Nissen farm near
Vermillion. He had dug more than 5,000 tons of
silt from a 60 acre pond.

13. CLAY SOIL
is a fine-grained natural rock or soil
material that combines one or more clay
minerals with traces of metal oxides and
organic matter.
exhibits plasticity when mixed with water in
certain proportions.
When dry, clay becomes firm and when
fired permanent physical changes occur.
heavy and easily saturated.
becomes sticky when wet.

14. CROPS GROWN IN CLAY SOIL:
lettuce, chard, snap beans, broccoli,
Brussels sprouts, cabbage, and many
more.

15. Quaternary clay in Estonia

18. LOAM
 ideal mixed and equal combination of
sand, silt, and clay.
 consisting of 40% sand, 40% silt and 20%
clay.
Loamy soil is ideal for most garden plants
because it holds plenty of moisture but also
drains well so that sufficient air can reach
the roots.

19. Fine, loam-rich field ideal for
farming vegetables in the UK

25. Thank you and
GODBLES! 