modern method of irrigation is better than traditional methods of irrigation justfy your statement
Answers
Traditional Method:
In this method, irrigation is done manually. Here, farmer pulls out water from wells or canals by himself or using cattle and carries to farming fields. This method can vary in different regions. Main advantage of this method is that it is cheap but efficiency is poor because even distribution of water is not always possible. Also chances of water loss while carrying is high. Some examples of traditional system are pulley system, lever system, chain pump and dhekli. Among these, pump system is most common and used widely.
Modern Method:
Modern method compensates disadvantages of traditional methods and thus helps in proper way of water usage. Modern method involves two systems: Sprinkler system and Drip system. Sprinkler system as its name suggests, sprinkles water over the crop and helps in even distribution of water. This method is much advisable in areas facing water scarcity. Here a pump is connected to pipes which generates a pressure and water is sprinkled through nozzles of pipes. In Drip system, irrigation is done drop by drop exactly at roots using a hose or pipe. This method can also be used in regions where water availability is less.
Answer:
The drawbacks of conventional method of irrigation are as follows:
(i) In conventional system of irrigation a large quantity of water is not properly utilized.
(ii) The fields situated in low areas always get excess water causing prolonged water-logging resulting in poor yields.
(iii) In the fields about 10-15 percent of land is utilized for preparing channels,etc. which decreases effective area of cultivation.
(iv) Extensive areas of land in the arid and semi-arid regions of India are no longer used for cultivation due to accumulation of salts. Excessive irrigation and poor water management are the main reasons of water logging and gradual build up of excessive salts. Progressive build up of soil salinity has made soils unsuitable for cultivation.
(v) Crops are usually subjected to cyclic changes of flooding and water stress situations, by providing heavy irrigation at one time and leaving the fields to dry up for about 10 to 15 days. The moisture availability to the crops therefore keeps on changing. This results in poor yields in the crops.
Explanation: