Grain Sorghum Response to Hybrid, Row Spacing, and Plant Populations along the Upper Texas Gulf Coast
Table 3
Grain sorghum net dollar value per hectare minus seed costs as influenced by hybrid, row spacing, and seeding rate.
Hybrid
Row spacing (cm)
Plant population (1000’s/ha)
Net value over seed costs ($/ha)
2001
2002
2003
Dekalb DK54
51
148–160
1319.43
652.35
602.58
185–198
1406.49
739.86
610.72
222–235
1200.41
618.65
646.73
102
148–160
1126.92
642.00
742.35
185–198
1258.80
670.7
450.27
222–235
1250.46
634.67
556.73
Asgrow A571
51
148–160
1143.57
611.31
641.28
185–198
1305.84
761.10
441.69
222–235
1246.04
759.59
506.78
102
148–160
1024.05
380.19
604.38
185–198
998.52
575.94
569.40
222–235
1015.46
554.75
501.02
LSD (0.05)
220.22
260.91
151.27
Seed costs and grain sorghum prices were calculated based on April, 2012 prices (L. Falconer, personal communication). Seed costs were calculated at $6.60/kg (imidacloprid treated) while grain sorghum price was based on $9.00/45.4 kg.
