Table 5.
The integrated effect of feldspar (FD), Filter cake (FC) treatments and their combinations with biofertilizer on the uptake (kg ha− 1) of nitrogen (N), phosphorous (P), and potassium (K) of potato tubers after two successive seasons (2021/2022–2022/2023)
| Treatments | Uptake (N) kg ha− 1 | Uptake (P) kg ha− 1 | Uptake (K) kg ha− 1 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MBc(-) | MBc(+) | Mean (OFs) | MBc(-) | MBc(+) | Mean (OFs) | MBc(-) | MBc(+) | Mean (OFs) | ||
| 2021/2022 | Control | 80.20e | 105.06de | 92.63c | 14.43e | 27.31de | 20.87c | 201.8e | 299.4de | 250.6c |
| 100FD | 273.10b-e | 210.14b-e | 241.62b | 45.63cde | 52.65cde | 49.14bc | 625.7b-e | 527.4cde | 576.6bc | |
| 100FC | 518.86a | 336.00abc | 427.43a | 125.51ab | 89.24a-d | 107.38a | 1192.1ab | 859.5bcd | 1025.8a | |
| 75FD + 25FC | 159.68cde | 415.71ab | 287.70b | 55.68b-e | 130.11a | 92.89a | 511.4cde | 1563.8a | 1037.6a | |
| 25FD + 75FC | 286.62b-e | 366.71abc | 326.67ab | 76.69a-e | 100.51abc | 88.60ab | 720.7b-e | 1064.7abc | 892.7ab | |
| 50FD + 50FC | 248.29b-e | 309.59a-d | 278.94b | 69.32a-e | 91.33a-d | 80.33ab | 658.6b-e | 847.4bcd | 753.0ab | |
| Mean (MBc) | 261.13a | 290.53a | 64.54b | 81.86a | 651.70b | 860.38a | ||||
| LSD (P ≤ 0.05) | A = 53.24 | B = 138.43 | AB = 228.52 | A = 16.75 | B = 43.57 | AB = 71.92 | A = 143.42 | B = 372.94 | AB = 615.64 | |
| 2022/2023 | Control | 81.06e | 105.92de | 93.49c | 15.36e | 28.24de | 21.80c | 202.4e | 300.1de | 251.3c |
| 100FD | 273.96b-e | 211.00b-e | 242.48b | 46.56cde | 53.58cde | 50.07bc | 626.4b-e | 528.1cde | 577.2bc | |
| 100FC | 519.72a | 336.86abc | 428.29a | 126.43ab | 90.17a-d | 108.30a | 1192.7ab | 860.2bcd | 1026.5a | |
| 75FD + 25FC | 160.54cde | 416.57ab | 288.56b | 56.60b-e | 131.04a | 93.82a | 512.0cde | 1564.5a | 1038.3a | |
| 25FD + 75FC | 287.48b-e | 367.57abc | 327.53ab | 77.61a-e | 101.44abc | 89.53ab | 721.4b-e | 1065.4abc | 893.4ab | |
| 50FD + 50FC | 249.15b-e | 310.45a-d | 279.80b | 70.25a-e | 92.26a-d | 81.25ab | 659.3b-e | 848.1bcd | 753.7ab | |
| Mean (MBc) | 261.99a | 291.39a | 65.47b | 82.79a | 652.37b | 861.05a | ||||
| LSD (P ≤ 0.05) | A = 53.24 | B = 138.43 | AB = 228.52 | A = 16.75 | B = 43.57 | AB = 71.92 | A = 143.42 | B = 372.94 | AB = 615.64 | |
The values shown in table are means three replicates. Means followed by the same letters are non-significantly different (p ≤ 0.05). Where MBc(-) = Without biofertilizer (Bacillus cereus); MBc(+) = With biofertilizer (Bacillus cereus); Control = Non-fertilizer; 100FD = 100% Feldspar; 100FC = 100% Filer Cake; 75FD + 25FC = 75% Feldspar + 25% Filer Cake; 25FD + 75FC = 25% Feldspar + 75% Filer Cake; 50FD + 50FC = 50% Feldspar + 50% Filer Cake