Table 2: The role of in-situ rain water harvesting structures on agricultural crop yield improvement.

No

In-situ rain water harvesting structures

Crop type

GY (kgha-1)

DMB (kgha-1)

Ph(cm)

CL (cm

100swt (gm)

Study area

References

1.                   1.1111

Targa

Maize

7150a

 

8230a

208a

39.36a

-

Abela Sippa kebele Wolaita zone, Ethiopia

 [64]

Tie-ridge

6190a

780ab

202a

35.26b

-

Zai

4500b

5760c

201a

37.30ab

-

Control

4900b

6150bc

196a

35.50b

-

2.                   2

Trus

Maize

5784.0bc

7386.7b

178.650c

23.63b

33.03a

Mirab Abaya Woreda, Southern, Ethiopia

 [63]

Targa

8843.0a

9922.1a

208.283a

29.40a

35.38a

Tie-ridge

6250.9b

6958.8b

200.45ab

24.53b

35.01a

Control

4525.6c

6361.6b

184.667bc

24.53b

34.89a

3.                    

Tied Ridge

Maize

5203a

-

-

-

-

Fedis District, Eastern Hararghe, Ethiopia

 

 [65]

Contour Ridge

4779a

-

-

-

-

Furrow Ridge

4404ab

-

-

-

-

flatbed planting/

Control

3635b

-

-

-

-

 

Tied Ridge

Maize (Zea mays L.)

9,941

 

 

 

 

Dugda District, East Shewa zone of Oromia Region, Ethiopia

 [78]

Furrow closed at both ends

8674