Table 7.
Development of productivity components under the effect of various rates of potassium fertilization and fertigation approaches in 2017.
| Group | Treatments | Number of Clusters | Number of Small Fruits (20–25 mm) | Number of Fruits (40–45 mm) |
|---|---|---|---|---|
| cv. “Zhigulevskoye” | ||||
| Control N20P15 | 224 | 126 | 107 | |
| G1 (unchangeable K rates) |
N20P15K25 | 221 | 120 | 105 |
| N20P15K35 | 216 | 127 | 115 | |
| N20P15K45 | 228 | 143 | 121 | |
| G2 (season adjusted K rates) |
N20P15K30 | 224 | 113 | 104 |
| N20P15K40 | 218 | 122 | 110 | |
| N20P15K50 | 233 | 135 | 125 | |
| LSD05 | 22 | 13 | 9 | |
| cv. “Lobo” | ||||
| Control N20P15 | 212 | 108 | 75 | |
| G1 (unchangeable K rates) |
N20P15K25 | 224 | 111 | 76 |
| N20P15K35 | 218 | 114 | 81 | |
| N20P15K45 | 215 | 119 | 89 | |
| G2 (season adjusted K rates) |
N20P15K30 | 212 | 101 | 77 |
| N20P15K40 | 216 | 106 | 81 | |
| N20P15K50 | 202 | 118 | 91 | |
| LSD05 | 18 | 8 | 5 | |