TABLE 10.
Effect of irrigation and nitrogen levels on economics of Bt cotton.
| Cost of cultivation (USD/ha) | ||||
| Nitrogen levels | I200 | I400 | I600 | Mean |
| N0 | 678 | 696 | 714 | 696 |
| N75 | 702 | 720 | 739 | 720 |
| N150 | 717 | 735 | 754 | 735 |
| N225 | 732 | 750 | 769 | 750 |
| Mean | 707 | 725 | 744 | |
|
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| Gross return (USD/ha) | ||||
|
| ||||
| Nitrogen levels | I200 | I400 | I600 | Mean |
|
| ||||
| N0 | 1557A | 1990CD | 1821B | 1789a |
| N75 | 1871BC | 2196E | 2067CDE | 2045b |
| N150 | 2121DE | 2577F | 2746G | 2481c |
| N225 | 2032D | 2613FG | 3067H | 2570d |
| Mean | 1895a | 2344b | 2425b | |
|
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| Net return (USD/ha) | ||||
|
| ||||
| Nitrogen levels | I200 | I400 | I600 | Mean |
|
| ||||
| N0 | 880A | 1294CD | 1106B | 1093a |
| N75 | 1169BC | 1475E | 1328D | 1324b |
| N150 | 1404DE | 1841F | 1992F | 1746c |
| N225 | 1361C | 1862F | 2298G | 1820c |
| Mean | 1188a | 1617b | 1681b | |
|
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| B:C ratio | ||||
|
| ||||
| Nitrogen levels | I200 | I400 | I600 | Mean |
|
| ||||
| N0 | 2.30A | 2.86CDE | 2.55B | 2.57a |
| N75 | 2.67BC | 3.05E | 2.80CD | 2.84b |
| N150 | 2.96DE | 3.50F | 3.64F | 3.37c |
| N225 | 2.78CD | 3.48F | 3.99G | 3.42c |
| Mean | 2.67a | 3.22b | 3.24b | |
Values marked by at least a common small letter do not differ significantly for main effects of nitrogen and irrigation treatments according to LSD test (p = 0.05). Values marked by at least a common capital letter do not differ significantly for interaction effect of nitrogen and irrigation treatments according to LSD test (p = 0.05).