Description about Agriculture Land Drainage

1. Assignment:: Agricultural Land Drainage
Submit by:: Muhammad Habib Ullah
2015-ag-7783
Submit To:: Dr. Usman
Agricultural Drainage:.
Drainage is needed to remove the excess water
and to control the rise of water table.
“Drainage is the removal of excess surface and subsurface
water from the land to enhance crop growth, including
dissolved salts from soil.

2. Necessity:.
Drainage is necessary for successful irrigated
agriculture because it control ponding, water logging and
salinity. It will be artificially or naturally.

3. Types:.
A. Surface Drainage
B. Subsurface Drainage
C. Bio Drainage
A. Surface Drainage:.
Surface drainage can be defined as the
removal of excess water fromthesoil surface.
It is also called Open Drain. For preventing
surface water pondingand controlling runoff
without causingerosion. It is too easy method
to adopt.
Types of Surface Drainage:.
a) Random Drain System
b) Parallel field Drain System
c) Parallel open Ditch System
d) Bedding System
a) Random Drain System:.

4. This system is usually used where
ground water surface is characterized by
a undulating land surface.
b) Parallel Field Drain System:.
This type of surface Drainage is used
where the surface is uniform. It is most
reliabledrainage methodand well suited.
Mains should deeper than field drains to
provide free outfall.
c) Parallel Open Ditch System:.
This system is the third type of Surface
Drainage and it is parallel to field drain

5. system. Maximum length of grade
draining to ditch should not be >180m.
d) Bedding system:.
The BuddingSystemis usuallycarried in
the field where is too little slope are
prevent. This is very effective method
for drainage.
B. Subsurface Drainage System:.
The removal and safe disposal of excess
water that has already entered the soil profile
in root zone is considered as Subsurface
Drainage. So, that the water table and root
zone salinity are controlled.
Types of Subsurface system:.
i. Deep open Drainage:.

6. The first type of Sub surface drainage
involves excess water from theroot zone
flows into open drain. Disadvantage of
this type is that it makes the use of
machinery difficult.
ii. Pipes Drainage:.
The second and last type of subsurface
drainage is the pipes Drainage. The
purpose of drainis to collect the carry
surface runoff and excess water from
soil.
C. Bio Drainage:.
The Bio Drainage includes Quick Drainage
in which plants are involves. e.g. Eucalyptus
is one of the plant which has been use in
Australia for this purpose.

7. Drainage System:.
A system by which water is drained on or in the
soil to enhance production. Sustainable drainage system
designed to reduce the potential impact of development.
Drainage system also prevent theaccumulation ofstagnant
water, which can encourage mosquitos to breed.
Advantages of Land Drainage:.
Remove thedangerousmaterial and make disease free.
It guarantee a healthy living if properly managed.
Prevent freezing point.
Minimize the effects of drought condition.
Make soil warmer.
To enhance movement of capillary moisture.