Research Article
Soil Amendments and Rotation Effects on Soybean and Maize Growths and Soil Chemical Changes in Northern Ghana
Table 4
Economic benefits of soybean and maize rotation under different soil amendments in the northern savanna of Ghana.
| Treatments | Gross benefit | Total variable cost GHS | Net benefit GHS | Benefit/cost ratio |
| 2014 | | | | | Maize after maize | 2710 | 1624 | 1087 | 1.7 | Maize after noninoculated soybean | 1983 | 1551 | 432 | 1.3 | Maize after inoculated soybean | 2437 | 1596 | 841 | 1.5 | Maize after inoculated soybean + P, K | 2900 | 1643 | 1258 | 1.8 | Maize after inoculated soybean + fertisol | 3294 | 1682 | 1612 | 2 | Maize after inoculated soybean + N, P, K | 2497 | 1602 | 895 | 1.6 | Maize after inoculated soybean + P, K + fertisol | 2820 | 1635 | 1186 | 1.7 | 2016 | | | | | Maize after maize | 1576 | 1510 | 66 | 1 | Maize after noninoculated soybean | 2262 | 1579 | 683 | 1.4 | Maize after inoculated soybean | 1588 | 1511 | 76 | 1.1 | Maize after inoculated soybean + P, K | 1962 | 1549 | 413 | 1.3 | Maize after inoculated soybean + fertisol | 2250 | 1578 | 673 | 1.4 | Maize after inoculated soybean + N, P, K | 1888 | 1541 | 346 | 1.2 | Maize after inoculated soybean + P, K + fertisol | 2300 | 1583 | 718 | 1.5 |
|
|
GHS = Ghana cedis; 1 U$ = 3.9 GHS.
|