Nurungukal...contd...
In an
earlier post I had described about kalathekku
prevalent in Anakkara area. In our
side the irrigation from ponds is in a different method. It is known as kottatheku. In this system the principle
of liver and pulley is applied. In the pond four bamboo poles are fixed in a
rectangle of 4x4 feet width. About 10 feet above these poles are secured by
four bamboo pieces to keep the poles in position. A piece of palm trunk made
into a channel by removing the soft pith and long enough to reach the adjacent edge of the pond is fixed on one beam and its other end resting on the land.
This will facilitate the drawn water to flow freely to the land to be
irrigated. Two trees of any fast growing plant which would have been already grown on the
land keeping the palm channel in between them.
A beam of any variety of tree which can hold fairly good weight is secured at a convenient
height on the poles in the land [B1]. Then
a long beam of any tree which is light and at the same time strong
enough to work as a lever is inserted into the cross beam [B1].This lever is
known as vesa. At the one end of vesa a basket called poovamkotta, woven out of a coconut
leaf will be hung and in which adequate weight of mud balls will be filled to
balance the lever. On the pond end of the vesa
a thin but fully matured bamboo pole is tied.This is called kayyeri. The down end of kayyeri is slit so that the handle of
the wooden bucket [thekotta] which is in a conical shape can be inserted into
the slit. Through this slit a thin piece of tamarind tree branch [kottakol] is
inserted so that the thekotta will
swing freely. By this the mechanism is ready for trial. Then the main worker will
try, by pulling down the kayyeri to
the water and will immerse the thekkotta
in water. He at one pull lifts the full thekotta
to the channel [pathi] and as it reaches the top it is placed on the pathi and with his right foot keeping on
the kottakol tilts the water into the
pathi so that the water flows freely.
This process is repeated at a fast pace and the water gushes through the
channels to reach its destination. Some time minor adjustments in the mechanism
has to be carried out so that the drawing and pulling down are smooth.
Normally
this arrangement will be fixed immediately after the withdrawal of north west
monsoon. The main crops which need irrigation are arecanut, coconut and
vegetables. The workers does the irrigation every alternate day. They used to
finish the job well before the sun rise. If we get up before they go,
reluctantly they will allow us to handle it for a few times. But some times when
mother and father are enjoying siesta we ventured to draw water to fill a pit
in which we might have made a miniature system of a similar principle.
Here the
most notable factor is that no fuel or even animal is used, but only human
effort. There is no loss of natural resources and the materials used are all
locally available. A sustainable practise which we abandoned for the sake of
convenience and at the stake depletion of natural resources and pollution!!.
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