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Potential of drip irrigation

Use of efficient pressurized irrigation systems such as drip and sprinklers irrigation can be used to improve water use efficiency including water saving and increased yield. In India, more than two million-hectare land under vegetables and high value crops is being irrigated through pressurized irrigation system with efficiencies of 6095%. Pressurized irrigation includes sprinkler as well as micro irrigation consisting of micro sprinklers, subsurface drip and drip irrigation. Micro irrigation is growing fast in India. About one million-hectare land under vegetables and high value crops is being irrigated through drip irrigation in India during 2008 (Table 3).

Table 3. Area under Micro irrigation (ha)

State

Drip

Sprinkler

Total

Rajasthan

15248

684748

699996

Maharashtra

462240

207205

669445

Haryana

6243

512657

518900

Andhra Pradesh

317935

182260

500195

Agartalla

169795

216978

386773

Gujarat

158727

128942

287669

Tamilnadu

124951

26739

151689

West Bengal

123

150020

150143

Madhya Pradesh

12518

104049

116567

Chhattisgarh

2627

44763

47391

Orissa

3361

23187

26548

Uttar Pradesh

10577

10555

21132

Punjab

10427

10276

20702

Kerala

14119

2516

16635

Sikkim

80

10030

10110

Nagaland

0

3962

3962

Goa

762

332

1094

Himachal Pradesh

116

581

696

Arunachal Pradesh

613

0

613

Jharkhand

133

365

498

Bihar

107

180

287

Grand Total

1310956

2320586

3631542

(Source : NCPAH, New Delhi)

Government has planned to cover 14 M ha area under micro irrigation during XI Plan. The drip irrigation has vast potential in the country as depicted in Table 4. Net potential area for drip irrigation is estimated to be 21.27 mha for the country (Narayanamoorthy, 2004).

Table 4: Potential of drip and sprinkler irrigation (area in mha)

State

Drip

Sprinkler

Total

Utter Pradesh

3.35

10.53

13.88

Maharashtra

4.11

3.30

7.41

Madhya Pradesh

1.19

5.98

7.17

Rajasthan

1.86

4.01

5.87

Punjab

0.65

3.57

4.22

Others

0.84

3.04

3.88

Haryana

1.03

2.75

3.78

Karnataka

2.02

1.47

3.49

Bihar

0.84

2.44

3.28

Andhra Pradesh

2.16

0.99

3.15

Gujarat

2.04

0.89

2.93

West Bengal

1.12

0.99

2.11

Kerala

1.69

0.25

1.94

Tamil Nadu

1.37

0.21

1.58

Orissa

0.84

0.42

1.26 3.56

Others

1.89

1.67

Total

27.00

42.51

69.51

To increasing the efficiency of water use and enhanced crop yield the area under micro irrigation is further likely to increase. The drip irrigation can be made more applicable for irrigating a wide range of agronomic, horticultural and fruit crops by installing the laterals below the soil surface, called subsurface drip irrigation.

 
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