Evaluating the Effect of Cultivars and Seeding Rates on the Yield of Lentil Grown under the Vertisols Production System
Table 3
Dominance and marginal rate of return analysis for the effect of varieties of different seed sizes and seed rate on grain yield (t/ha) of lentil variety “Derash” at Moretina Jiru and Siyadebrina Wayu districts, combined over 5 environments (3 locations in 2017 and 2 locations in 2018).
Seed rate (kg/ha)
Predicted grain yield (kg/ha)
Adjusted grain yield (kg/ha)
GB (Birr/ha)
TVC (Birr/ha)
NB (Birr/ha)
MRR (%)
40
1.15
1.04
29059.08
1160.00
27899.08
50
1.19
1.07
30034.79
1450.00
28584.79
236.45
60
1.22
1.10
30856.27
1740.00
29116.27
183.27
70
1.25
1.13
31568.32
2030.00
29538.32
145.54
80
1.28
1.15
32198.40
2320.00
29878.40
117.27
90
1.30
1.17
32764.60
2610.00
30154.60
95.24
100
1.32
1.19
33279.52
2900.00
30379.52
77.56
110
1.34
1.21
33752.28
3190.00
30562.28
70.29
120
1.36
1.22
34189.74
3480.00
30709.74
63.81
130
1.37
1.24
34597.17
3770.00
30827.17
57.98
140
1.39
1.25
34978.72
4060.00
30918.72
52.70
GB, gross benefit; TVC, total variable cost; NB, net benefits; MRR, marginal rate of return.
