Importance of Irrigation Engineering |
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In the next 35-45- years, world food production will need to double to meet the demands of increased population.
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90% of this increased food production will have to come from existing lands.
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70% of this increased food production will have to come from irrigated land
Purposes of Irrigation
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Providing insurance against short duration droughts
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Reducing the hazard of frost (increase the temperature of the plant)
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Reducing the temperature during hot spells
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Washing or diluting salts in the soil
Softening tillage pans and clods
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Delaying bud formation by evaporative cooling
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Promoting the function of some micro organisms
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Objectives of irrigation
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To Supply Water Partially or Totally for Crop Need
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To Cool both the Soil and the Plant
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To Leach Excess Salts
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To improve Groundwater storage
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To Facilitate continuous cropping
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To Enhance Fertilizer Application- Fertigation
Benefits of Irrigation
- Increase in Crop Yield
- Protection from femine
- Cultivation of superior crops
- Elimination of mixed cropping:
- Economic development
- Hydro power generation
- Domestic and industrial water supply:
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