EXERCISE 1. What is irrigation? 2. Why is irrigation necessary for a country like India? 3. State the different methods of irrigation. 4. Of the two types of canal irrigation, which do you think is better? Why? 5. What is tank irrigation? 6. What are the advantages and disadvantages of tank irrigation? 7. Where are tanks most widely used and why? 8. Of the two types of wells, which is the best and why? 9. Name two states where tank irrigation and well irrigation is practised.
Answers
Answer:
Explanation:
1. Irrigation is supply of water to the crops in regular time intervals. Time and repetition of irrigation varies from crop to crop , from different soil types as well as well as from season to season. For example, during summers, evaporation from plant body and soil is higher, due to which irrigation is done frequently.
2. The supply of water to land or crops, usually through channels, to aid development. In dry areas and during times of less than normal rainfall, irrigation helps to grow agricultural crops, sustain landscapes, and re-vegetate disturbed soils.
3. Surface irrigation. Surface irrigation is the oldest form of irrigation and has been in use for thousands of years. ...
Micro-irrigation. ...
Drip irrigation. ...
Sprinkler irrigation. ...
Center pivot. ...
Irrigation by lateral move (side roll, wheel line, wheelmove) ...
Lawn sprinkler systems. ...
4. Perennial Canals are batter because Inundation Canals are helpful only during floods, and the water supplied by them is also uncertain. Whereas Perennial Canals are useful throughout the year
5. Tank is one source of irrigation where water is stored in artificially constructed reservoirs of any size. Features of tank irrigation: Tanks are part of ancient harvesting and preserving rainwater for use in agriculture, drinking and sometimes for rituals and bathing.
6. It costs much less than the call water system. Tanks can even store water that comes from the rain. Disadvantages: However, tanks dry up in summers and aren't of much use at that time.
7. he tanks are widely used in the states located in the Peninsular Plateau, where the structure of rock is hard. In these areas, it is difficult to dig canals and wells. Complete answer: A tank or an irrigation tank is a man-made reservoir or storage of any size.
8. Tube well is the best because it's construction cost is less , less effort is needed to pump water out by manually . It is used for agricultural purpose and use for drinking also as it comes from under ground so, it is Rich in minerals
9. Two state where well irrigation is practiced :-Punjab and uttar pradesh. Two state where tank irrigation is practiced :-Tamil Nadu and Kerala
May the answer will help you!!