Revitalization of Rivers in India Draft Policy - Isha Guru Jaggi Vasudev

Revitalization of Rivers In India
Draft Policy Recommendation
DIFFERENCE B/W CONVENTIONAL FLOOD IRRIGATION & DRIP IRRIGATION
• In the conventional flood irrigation method, it is a general practice to apply
water to the soil once in week or so.
• In such irrigations, soil moisture content reaches saturation on irrigation and
recedes to wilting point before the next instance of watering.
• In these situations, most of the time plant roots suffer either due to
saturation or moisture stress, which results in monotonous plant growth and
yield.
• On the other hand, in drip irrigation with daily water application to the root
zone of the crop, the effort is to maintain the soil moisture nearly at field
capacity.
• Due to the frequent application and optimum moisture levels in the root
zone, i.e. having favorable moisture conditions all the time, the plant grows
well and yields good produce with excellent quality.
• In addition to this, drip irrigation wets only the root zone volume of soil mass,
which enhances repellence and creates hostile conditions to most pests and
diseases.
Particular
Conventional
Flood Irrigation
Drip Irrigation
Water use efficiency Less than 40% Above 80%
Fertilizer use efficiency Very low Excellent
Labor requirement High Low
Weed emergence Very high Rare
Leaching and deep percolation
Surface runoff and soil erosion
Very high
Liable
Uniform crop growth Rare Consistant
Uniform yield and crop
quality
Rare
Nil
Nil
Consistant
Annexures
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