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Enhanced productivity and water use efficiency

Using micro irrigation, water can be applied to crops efficiently with enhanced water use efficiency. Thus the micro irrigation may allow more crop cultivation per unit applied water, and allow crop cultivation in an area where available water is insufficient to irrigate through other irrigation methods. Fertilizers and chemicals could also be applied efficiently using this irrigation method. It has potential to save water and fertilizer with enhanced crop production.

Micro irrigation could utilize the marginal quality water also. The relative advantage of using MIS over conventional method of irrigation for some crops (INC ID, 1994) has been presented in Table 2.

Table 2: Advantage of micro over conventional irrigation of crops

Crop

Yield, t/ha

% Yield

increase

% Water saving

Increase in water use efficiency, %

Conventional

Drip

Banana

57.5

87.5

52

45

176

Chilly

4.2

6.1

44

63

219

Grapes

26.4

32.5

23

48

136

Sweet Lime

100

150

.50

61

289

Pomegranate

55

109

98

45

167

Tomato

32

48

SO

31

119

Water Melon

24

45

88

36

195

Sugarcane

128

170

33

56

204

 
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