Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 9A.

Figure 9B.

Influence of irrigation regimes and fertigation levels on the percentage of fruit set and number of panicles per m2 canopy area_
| I | Percentage of fruit set | Number of panicles/m2 | ||||||
|---|---|---|---|---|---|---|---|---|
| I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | |
| F1 | 0.27 | 0.39 | 0.37 | 0.34 | 8.70 | 12.83 | 10.77 | 10.77 |
| F2 | 0.29 | 0.42 | 0.40 | 0.37 | 9.50 | 13.30 | 12.50 | 11.77 |
| F3 | 0.32 | 0.45 | 0.43 | 0.40 | 11.83 | 15.77 | 15.63 | 14.41 |
| F4 | 0.36 | 0.46 | 0.44 | 0.42 | 12.78 | 16.13 | 15.83 | 14.92 |
| Mean | 0.31 | 0.43 | 0.41 | 10.70 | 14.51 | 13.68 | ||
| I | F | I × F | I | F | I × F | |||
| SEd | 0.004 | 0.004 | 0.007 | 0.224 | 0.427 | 0.679 | ||
| CD (0.05) | 0.011 | 0.008 | 0.016 | 0.623 | 0.898 | NS | ||
Influence of irrigation regimes and fertigation on tree spread in east-west direction (m) at different stages_
| I | Vegetative stage | Flowering stage | Harvesting stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | |
| F1 | 1.70 | 1.85 | 1.81 | 1.78 | 1.85 | 2.00 | 1.98 | 1.94 | 2.03 | 2.15 | 2.13 | 2.10 |
| F2 | 1.78 | 1.91 | 1.92 | 1.87 | 1.94 | 2.14 | 2.11 | 2.06 | 2.11 | 2.27 | 2.28 | 2.22 |
| F3 | 1.79 | 1.99 | 1.97 | 1.92 | 1.98 | 2.19 | 2.21 | 2.13 | 2.18 | 2.49 | 2.48 | 2.38 |
| F4 | 1.84 | 2.10 | 2.03 | 1.99 | 2.09 | 2.33 | 2.34 | 2.25 | 2.25 | 2.65 | 2.60 | 2.50 |
| Mean | 1.78 | 1.96 | 1.93 | 1.97 | 2.17 | 2.16 | 2.14 | 2.39 | 2.37 | |||
| I | F | I × F | I | F | I × F | I | F | I × F | ||||
| SEd | 0.10 | 0.07 | 0.15 | 0.03 | 0.04 | 0.06 | 0.03 | 0.05 | 0.08 | |||
| CD (0.05) | NS | NS | NS | 0.07 | 0.08 | NS | 0.07 | 0.11 | NS | |||
Treatments used in the experiment_
| S. No. | Treatment details |
|---|---|
| 1 | 75% Pan evaporation + 50% of RDF through fertigation (I1F1) |
| 2 | 75% Pan evaporation + 75% of RDF through fertigation (I1F2) |
| 3 | 75% Pan evaporation + 100% of RDF through fertigation (I1F3) |
| 4 | 75% Pan evaporation + 125% of RDF through fertigation (I1F4) |
| 5 | 100% Pan evaporation + 50% of RDF through fertigation (I2F1) |
| 6 | 100% Pan evaporation + 75% of RDF through fertigation (I2F2) |
| 7 | 100% Pan evaporation + 100% of RDF through fertigation (I2F3) |
| 8 | 100% Pan evaporation + 125% of RDF through fertigation (I2F4) |
| 9 | 125% Pan evaporation + 50% of RDF through fertigation (I3F1) |
| 10 | 125% Pan evaporation + 75% of RDF through fertigation (I3F2) |
| 11 | 125% Pan evaporation + 100% of RDF through fertigation (I3F3) |
| 12 | 125% Pan evaporation + 125% of RDF through fertigation (I3F4) |
Stages of fertiliser application_
| Nutrient | Stages of fertiliser application | ||||
|---|---|---|---|---|---|
| Immediately after pruning (July–Aug–Sep) (%) | Pre-flowering (Oct–Nov–Dec) (%) | Reproductive stage (Jan–Feb–Mar) (%) | Fruit improvement (Apr–May) (%) | Total percentage (%) | |
| Nitrogen | 25 | 40 | 20 | 15 | 100 |
| Phosphorus | 40 | 30 | 20 | 10 | 100 |
| Potash | 25 | 20 | 25 | 30 | 100 |
Influence of irrigation and fertigation on trunk girth (cm) at different stages of mango tree_
| I | Vegetative stage | Flowering stage | Harvesting stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | |
| F1 | 22.57 | 24.79 | 23.92 | 23.76 | 23.38 | 25.56 | 24.73 | 24.56 | 24.33 | 26.42 | 25.59 | 25.45 |
| F2 | 24.09 | 25.68 | 24.49 | 24.75 | 24.77 | 26.39 | 25.24 | 25.47 | 25.68 | 27.31 | 25.96 | 26.32 |
| F3 | 24.68 | 25.88 | 24.96 | 25.17 | 25.51 | 26.79 | 25.85 | 26.05 | 26.47 | 27.88 | 26.93 | 27.09 |
| F4 | 25.10 | 26.12 | 25.87 | 25.70 | 25.97 | 26.97 | 26.73 | 26.56 | 26.92 | 28.11 | 27.86 | 27.63 |
| Mean | 24.11 | 25.62 | 24.81 | 24.91 | 26.43 | 25.64 | 25.85 | 27.43 | 26.59 | |||
| I | F | I × F | I | F | I × F | I | F | I × F | ||||
| SEd | 0.34 | 0.31 | 0.57 | 0.35 | 0.32 | 0.59 | 0.37 | 0.33 | 0.62 | |||
| CD (0.05) | 0.95 | 0.65 | NS | 0.98 | 0.67 | NS | 1.02 | 0.69 | NS | |||
Influence of irrigation regimes and fertigation on tree height (m) at different stages_
| I | Vegetative stage | Flowering stage | Harvesting stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | |
| F1 | 2.19 | 2.29 | 2.24 | 2.24 | 2.28 | 2.37 | 2.29 | 2.31 | 2.40 | 2.46 | 2.41 | 2.42 |
| F2 | 2.23 | 2.32 | 2.28 | 2.28 | 2.31 | 2.41 | 2.32 | 2.35 | 2.43 | 2.52 | 2.46 | 2.47 |
| F3 | 2.26 | 2.37 | 2.34 | 2.32 | 2.34 | 2.48 | 2.46 | 2.43 | 2.45 | 2.61 | 2.59 | 2.55 |
| F4 | 2.30 | 2.42 | 2.40 | 2.37 | 2.40 | 2.55 | 2.53 | 2.49 | 2.49 | 2.68 | 2.65 | 2.61 |
| Mean | 2.25 | 2.35 | 2.32 | 2.33 | 2.46 | 2.40 | 2.44 | 2.57 | 2.53 | |||
| I | F | I × F | I | F | I × F | I | F | I × F | ||||
| SEd | 0.03 | 0.02 | 0.04 | 0.01 | 0.02 | 0.03 | 0.01 | 0.01 | 0.02 | |||
| CD (0.05) | NS | 0.03 | NS | 0.04 | 0.04 | NS | 0.03 | 0.03 | 0.05 | |||
Influence of irrigation and fertigation on tree spread in north-south direction (m) at different stages of mango_
| I | Vegetative stage | Flowering stage | Harvesting stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | I1 | I2 | I3 | Mean | |
| F1 | 1.69 | 1.82 | 1.97 | 1.83 | 1.88 | 2.00 | 2.10 | 1.99 | 1.95 | 2.09 | 2.17 | 2.07 |
| F2 | 1.72 | 1.88 | 2.00 | 1.87 | 1.91 | 2.14 | 2.16 | 2.07 | 1.97 | 2.24 | 2.24 | 2.15 |
| F3 | 1.76 | 1.93 | 2.14 | 1.95 | 1.95 | 2.16 | 2.35 | 2.15 | 2.02 | 2.29 | 2.47 | 2.26 |
| F4 | 1.84 | 2.11 | 2.08 | 2.01 | 2.03 | 2.35 | 2.28 | 2.22 | 2.12 | 2.44 | 2.42 | 2.33 |
| Mean | 1.75 | 1.94 | 2.05 | 1.94 | 2.16 | 2.22 | 2.02 | 2.27 | 2.33 | |||
| I | F | I × F | I | F | I × F | I | F | I × F | ||||
| SEd | 0.06 | 0.04 | 0.08 | 0.05 | 0.04 | 0.08 | 0.03 | 0.03 | 0.05 | |||
| CD (0.05) | 0.16 | 0.08 | NS | 0.13 | 0.09 | NS | 0.08 | 0.06 | NS | |||