Correct Answer - Option 1 : gravity
Explanation:
- The application of water to the surface of the field by GRAVITY flow is known as SURFACE IRRIGATION.
- The water is fed into narrow channels (furrows) or strips of land, or the whole field is flooded (basin irrigation).
- Water flows over and around the ground in surface irrigation systems through gravity movement to wet it and penetrate into the soil.
- Furrow, boundary line, and basin irrigation are three types of surface irrigation.
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NO PUMPS are used in surface irrigation. All the work is done by gravity
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Flood irrigation is a term used to describe surface irrigation, which implies that the water distribution is unregulated but is cost-effective.
As in surface irrigation, no pumps are used, only gravity is the sole bearer for irrigating the land, the correct answer is - GRAVITY
WHAT IS IRRIGATION?
- Irrigation is the method of artificially adding water to crops in order to meet their water requirements.
- Irrigation may also be used to provide nutrients to crops.
- It adds regulated quantities of water to land in order to aid in crop production.
- Irrigation aids in the growth of agricultural crops, the preservation of landscapes, and the re-vegetation of disturbed soils in dry areas and during times of below-average rainfall.
- Irrigation also serves other purposes in crop production, such as frost control, weed suppression in grain fields, and soil consolidation prevention.
- In countries like India, most farmers depend on the rains for irrigating the land.
- TYPES OF IRRIGATION -
- SURFACE IRRIGATION - through the work done by gravity.
- DRIP IRRIGATION - delivering drops of water near the roots of the plants.
- SUB IRRIGATION - distribution of water through a system of pumping stations, canals, and ditches.
- MANUAL IRRIGATION - through watering cans
- SPRINKLER IRRIGATION - delivering water through sprinklers
