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Table 5 Gross margins from investing in protecting sorghum from panicle-feeding insect in the savanna zone of Ghana

From: Effects of insecticides and cultivars on panicle-feeding insect pest infestations and grain yield of sorghum (Sorghum bicolor (L.) Moench) in northern 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
  1. NSO Neem seed oil