Desert Irrigation :
Irrigation has been on of the continious and routine process that has been followed from the day human start to cultivate.After industralization world has taken a sharp turn. Agriculture was no more a main business for making money. Profit and high margin is the Aim of current world business.Offcourse that is all business is all about.But who feeds your hungry stomach . how it is feeded? This story explains you the importace of
agriculture ,its exiler ,the irrigation methods. This article also deals with the trend in early irrigation methods,current trends....and the cons current world is facing for irrigation.This article provides desert irrigation ideas so we will confine our dicussion only with deserts. In future articles we will be discussing about irrigation methods around parts of the globe.
Water:
Two third of the globe is filled with water. But.....Its water,water,water.......water everywhere......not a single drop of water to drink.....yes not a single drop of water to irrigate the crops around the world. earlier civilazation has flourished only across places where there is water avaliable for irrigation...Nile delta is one of the best example for above statement. Land was irrigated on both sides of Nile river . Rest of the lands were occupied by boiling sands called DESERT.
Yes Temperature is on raise,pollution is on raise,Population is on raise,hunger is on raise........we need to keep our food safety going on....how do we do it.....Cultivate waste lands....cultivate deserts.....yes we want to do it.....where do we get water for cultivation.....lets start..
Irrigation:
Irrigation is defined as the method or process to water crops/plants . crops has to be watered depending upon their characteristic feature. Some crops needs high amount of water to survive and some crops needs only less amount of water to survive.One of the most followed irrigation in desert regions is drip irrigation. Feeding the crop drop by drop .This saves ample amount of water . It keeps the soil around the plant in wet condition making the roots to spread for oxygen fixation.
Drip irrigation:
Drip irrigation mechanism consist of many components. Back flow checker is connected to the value which is connected to the main pipeline. Back flow checker prevents water to flow back due to pressure on the nozzle end.Back flow checker is in turn connected to filter which arrests any impurities present in the water.if filter is not provided ,impurities in water may choke the nozzle end.Filter is in turn connected to housing unit which houses the drip tubing. drip tube is connected to the drip nozzle.
Below diagrams/images shows some of drip irrigation units.
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| Drip irrigation methodology .Courtesy: internet |
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| Plants irrigated using drip irrigation in desert |
Simple way of drip irrigation might use a tough pipe which can withstand pressure punched at regular intervals.below is such an example.
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| Drip of water......nourishes green life |
Below image shows an drip irrigation in desert.
Beside drip irrigation sprinkler irrigation is also a famous method ,which irrigates large area of land. Below images shows an image of sprinkler irrigation.
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| Sprinkle irrigation. |
Canal irrigation.
Where there is a abundant of water...canal method is used there....cost effective......crops like cotton,rice and sugarcane is grown in these areas.Below is an image of canal irrigation.
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| Canal irrigation |
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| Canal irrigation in india. |
Bore well irrigation:
Depending upon the availability of diesel or electricity....bore well pumps are operated.they exploit ground water .below is an image of bore well irrigation.
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| Bore well in action. |
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| Diesel pump in action |
To end with below NASA image of (1984 and 2012 )shows the greening of brown desert. Its really awesome isnt it? .
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| Greening the desert. Arabian irrigation method. |
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