Evaluating the Effect of Cultivars and Seeding Rates on the Yield of Lentil Grown under the Vertisols Production System
Table 4
Dominance and marginal rate of return analysis for the effect of varieties of different seed sizes and seed rate on grain yield (t/ha) “Local cultivars” of lentil 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
0.98
0.89
26562.60
1240.00
25322.60
50
1.04
0.93
28005.75
1550.00
26455.75
365.53
60
1.08
0.98
29289.60
1860.00
27429.60
314.15
70
1.13
1.01
30414.15
2170.00
28244.15
262.76
80
1.16
1.05
31379.40
2480.00
28899.40
211.37
90
1.19
1.07
32185.35
2790.00
29395.35
159.98
100
1.22
1.09
32832.00
3100.00
29732.00
108.60
110
1.23
1.11
33319.35
3410.00
29909.35
57.21
120
1.25
1.12
33647.40
3720.00
29927.40
31.52
130
1.25
1.13
33816.15
4030.00
29786.15
D
140
1.25
1.13
33825.60
4340.00
29485.60
D
GB, gross benefit; TVC, total variable cost; NB, net benefits; MRR, marginal rate of return.
