|
Yield and Economics of Potato Under Drip and Sprinkler Irrigation Methods
|
Table 1: Yield and economics of potato under drip method of irrigation/frtigation
|
Treatement
|
Graded tuber yields (q/ha)
|
Total Yield (q/ha)
|
|
Cost of Cultivation (Rs/ha)
|
Gross returns (Rs/ha)
|
Net returns (Rs/ha)
|
Benefit : Cost ration
|
|
Large (>75g)
|
Medium (25-75g)
|
Small (<25g)
|
| % NPK under drip
|
31
|
117
|
34
|
181
|
570
|
39,509
|
42,250
|
5,741
|
1.15
|
| 25% NPK Fertigation
|
75
|
174
|
32
|
280
|
677
|
40,488
|
70,000
|
29,512
|
1.73
|
| 50% NPK Fertigation
|
112
|
205
|
29
|
346
|
727
|
41,467
|
86,500
|
45,033
|
2.09
|
| 75% NPK Fertigation
|
157
|
239
|
29
|
426
|
795
|
42,446
|
1,06,500
|
64,054
|
2.51
|
| 100% NPK Fertigation
|
165
|
238
|
28
|
431
|
831
|
43,426
|
1,07,750
|
64,324
|
2.48
|
| Drip Irrigation
|
113
|
206
|
30
|
349
|
800
|
43,426
|
87,250
|
43,824
|
2.01
|
| Furrow Irrigation
|
97
|
180
|
32
|
309
|
705
|
39,082
|
77,250
|
38,168
|
1.98
|
| CD (5%)
|
20
|
19
|
N.S.
|
28
|
59
|
-
|
-
|
-
|
-
|
Table 2: Yield and economics of potato under sprinkler irrigation/frtigation
|
Treatement
|
Graded tuber yields (q/ha)
|
Total Yield (q/ha)
|
|
Cost of Cultivation (Rs/ha)
|
Gross returns (Rs/ha)
|
Net returns (Rs/ha)
|
Benefit : Cost ration
|
|
Large (>75g)
|
Medium (25-75g)
|
Small (<25g)
|
|
0 kg N/ha under sprinkler
|
29
|
94
|
40
|
163
|
553
|
39,140
|
40,750
|
1,610
|
1.04
|
|
20 kg N/ha under sprinkler fertigation
|
82
|
134
|
40
|
254
|
657
|
39,756
|
63,750
|
23,994
|
1.60
|
|
40 kg N/ha under sprinkler fertigation
|
87
|
141
|
36
|
264
|
663
|
39,910
|
66,000
|
26,090
|
1.65
|
|
60 kg N/ha under sprinkler fertigation
|
95
|
152
|
31
|
278
|
683
|
40,064
|
69,500
|
29,436
|
1.73
|
|
80 kg N/ha under sprinkler fertigation
|
108
|
160
|
29
|
297
|
697
|
40,218
|
74,250
|
34,032
|
1.85
|
|
|
133
|
176
|
23
|
331
|
704
|
40,526
|
82,750
|
42,224
|
2.04
|
|
|
115
|
151
|
29
|
293
|
658
|
39,082
|
73,250
|
34,168
|
1.87
|
|
CD (5%)
|
20
|
26
|
9
|
23
|
36
|
-
|
-
|
-
|
|
|
Participants