agriculture Land Drainage part 2

1. Name:. Pakeeza Fatima
Reg #:. 2019-ag-5301
Assignment:. Agricultural Land Drainage
Introduction:.
In the previous Decade, The method of
Agricultural land drainage has lost some
reliability whether it is justified or not, and the
number of professionals drainage is decreasing.
This method is too expensive and has negative
side effects.
What is (Land) Drainage:.
Literally, The word ‘Drainage’ means ‘The
removal of liquid from a river for irrigation.
Definition:.
The Process and the practice which is used to
remove excess water from the soil surface and
soil profile is known as Drainage.

2. e.g. Drained of energy or for a surgeon, a brain
drain does not mean an opening to remove brains,
but a tool to remove liquid from brain.
Drainage Types:.
There are two main types of Drainage
Practices
1. Surface Drainage:.
Surface Drainage may be defined as the
removal of excess water from the soil
surface, by means of improved natural or
constructed drains. Surface Drainage is

3. the cheapest and easiest option in some
cases.
In this Drainage, the excess water
removed by flowing over the naturally or
artificially sloping ground water towards,
Surface inlets, shallow ditches…
This method does not damage the
environment. It is also known as open
drain.
Types of Surface Drainage:.
i. Random Drain System
ii. Parallel field Drain System
iii. Parallel open ditch system
iv. Bedding system
i. Random Drain System:.
It is the type of surface
drainage which is used in
areas that have scattered wet.

4. Somewhat isolated from one another.
The lines are laid more or less at
random to drain the wet patches.
ii. Parallel field Drain System:.
It is the second type of surface
drainage and it is used in
places where the surface is
uniform and has the few
ridges. They are channels
running parallel to one
another.

5. iii. Parallel open ditch system:.
This type has similarity with
the parallel field drain system
but in which drains are
replaced by open ditches.
iv. Bedding System:.

6. The last type of surface
drainage is the bedding
system. This is applied where
the field has very little slope.
The ploughing operations are
to be carried out parallel to
ridges.
2. Sub Surface Drainage System:.
A sub Surface Drainage system is a
manmade system that promote the
excess water and dissolved salts to
flow through the soil to pipes from
the root zone.

7. Types
i. Open drain
ii. Pipe drain
i. Open Drain:.

8. Open drain is an open channel,
which is used for the discharge of
rain water.
Rain water collected from there
channels directed to rivers. They
rapidly spread water born
diseases. So, that have a
“Singular pipe drain system”.
ii. Pipe Drain:.
A pipe through which liquid is
carried away. Waste pipe purpose
is that if you are not connected to
a “sewar” system, the waste
liquid from your home go into a
tank and then further the water
seeps out of these holes into
ground. So, that we have a
“Composite pipe drain system”.
Faster, easier, longer useful life
and more intensive.
3. Bio Drainage:.

9. This method is comes out through
growing plants which transpire at
very high rate.
e.g. in India Eucalyptus become
popular because of its quick growing
characteristics.
Drainage System:.
A Drainage System is the pattern formed
by streams, Rivers and lakes in a particular
Drainage basis.
“Different methods to be used for dewatering the
foundation and to keep the foundation safe”
Advantages of Land Drainage:.
 Improve soil structure.
 Improve the drainage conditions of land.
 Reclamation of waterlogged soil.

10.  Reduces soil erosion.
 Prevents water accumulation.
 Remove toxic material.
 Remove disease able organism.
 Provide aeration within root zone.
 Prevent freezing out.