Table 5 Gross margins from investing in protecting sorghum from panicle-feeding insect in the savanna zone of Ghana
Cultivar | CSSOR 08-V01 | CSSOR 10-V07 | Dorado | Kapaala | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Treatment | Control | K-Optimal | NSO | Control | K-Optimal | NSO | Control | K-Optimal | NSO | Control | K-Optimal | NSO |
Revenue items | ||||||||||||
Grain yield (kg/ha) | 2004.02 | 2275.46 | 2398.49 | 1537.4 | 1902.62 | 1445.71 | 1339.33 | 2289.83 | 2127.78 | 146.95 | 2367.67 | 2252.38 |
Gross revenue (GHC/ha) | 3967.96 | 4505.41 | 4749.01 | 3044.05 | 3767.19 | 2862.51 | 2651.87 | 4533.86 | 4213.00 | 290.96 | 4687.99 | 4459.71 |
Cost items | ||||||||||||
Land preparation cost (GHC/ha) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Cost of seed (GHS/ha) | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
Labour cost for planting (GHC/ha) | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
Cost of herbicides (GHS/ha) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
Labour cost for herbicides (GHC/ha) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
Cost of fertilizer (NPK) (GHC/ha) | 210 | 210 | 210 | 210 | 210 | 210 | 210 | 210 | 210 | 210 | 210 | 210 |
Cost of fertilizer (UREA) (GHC/ha) | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 |
Labour for fertilizer app. (GHC/ha) | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
Cost of insecticide (GHC/L/ha) | 0 | 30 | 32 | 0 | 30 | 32 | 0 | 30 | 32 | 0 | 30 | 32 |
Cost of labour (GHC/ha) | 0 | 75 | 75 | 0 | 75 | 75 | 0 | 75 | 75 | 0 | 75 | 75 |
Labour for harvesting (GHC/ha) | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
Total cost (GHC/ha) | 1082 | 1187 | 1189 | 1082 | 1187 | 1189 | 1082 | 1187 | 1189 | 1082 | 1187 | 1189 |
Gross margin (GHC/ha) | 2885.96 | 3318.41 | 3560.01 | 1962.05 | 2580.19 | 1673.51 | 1569.87 | 3346.86 | 3024.00 | -791.04 | 3500.99 | 3270.71 |
Benefit cost ratio | 2.67 | 2.80 | 2.99 | 1.81 | 2.17 | 1.41 | 1.45 | 2.82 | 2.54 | 0.73 | 2.95 | 2.75 |
Returns to insect control | NA | 31.60 | 33.27 | NA | 24.57 | 15.64 | NA | 31.28 | 28.26 | NA | 33.34 | 30.57 |