Table 4: Marginal Rate of Return (MRR) analysis in comparison with control treatment (NoS0 K0 ).
| Nutrient Levels (Treatments) |
Returns and Costs in USD |
| Gross Return |
Total Varying Cost |
Net Return |
Net Income Over Control |
MRR (%) |
| N0 S0 K0 (control) |
4609.71 |
0.00 |
460.97 |
- |
- |
| NoS0 K45
|
4930.62 |
454.68 |
4475.93 |
4014.96 |
883.03 |
| NoS0 K67
|
5390.29 |
526.95 |
4863.33 |
4402.36 |
835.43 |
| NoS15K0
|
6027.75 |
410.27 |
5617.49 |
5156.52 |
1256.87 |
| NoS15K45
|
6461.41 |
482.54 |
5978.87 |
5517.89 |
1143.51 |
| NoS15K67
|
6838.68 |
554.81 |
6283.87 |
5822.90 |
1049.53 |
| N69S0 K0
|
7892.45 |
459.47 |
7432.98 |
6972.01 |
1517.39 |
| N69S0 K45
|
8196.01 |
531.75 |
7664.26 |
7203.29 |
1354.65 |
| N69S0 K67
|
8642.67 |
604.02 |
8038.65 |
7577.68 |
1254.54 |
| N69S15K0
|
9453.60 |
487.33 |
8966.27 |
8505.30 |
1745.28 |
| N69S15K45
|
9770.16 |
559.60 |
9210.56 |
8749.59 |
1563.53 |
| N69S15K67
|
10234.17 |
631.88 |
9602.29 |
9141.32 |
1446.69 |
| N92S0 K0
|
10784.91 |
474.89 |
10310.02 |
9849.05 |
2073.98 |
| N92S0 K45
|
11058.11 |
547.16 |
10510.95 |
10049.98 |
1836.76 |
| N92S0 K67
|
11491.76 |
619.43 |
10872.33 |
10411.36 |
1680.79 |
| N92S15K0
|
12315.70 |
502.74 |
11812.95 |
11351.98 |
2258.01 |
| N92S15K45
|
12619.25 |
575.02 |
12044.24 |
11583.27 |
2014.42 |
| N92S15K67
|
13083.26 |
647.29 |
12435.97 |
11975.00 |
1850.02 |