Table 7. Rice water productivity and total water applied have an interaction effect due to crop planting techniques and fertiliser management practices in kharif 2019 and 2020 seasons.
| Treatments | 2019 | 2020 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PERC_V | TWU_V | WPIRRI | WPTCW | WPETC | PERC_V | TWU_V | WPIRRI | WPTCW | WPETC | |
| (m3t−1) | (kg m−3) | (m3t−1) | (kg m−3) | |||||||
| Crop planting techniques (A) | ||||||||||
| CE1 | 1,107.6b | 2,971.89a | 0.38b | 0.36b | 0.36b | 1,077.8b | 2,967.5a | 0.37b | 0.36b | 0.36b |
| CE2 | 1,186.0a | 2,656.34b | 0.44a | 0.41a | 0.42a | 1,153.3a | 2,579.3b | 0.44a | 0.42a | 0.42a |
| SEM ± | 9.04 | 75.37 | 0.005 | 0.004 | 0.004 | 7.27 | 47.56 | 0.005 | 0.005 | 0.005 |
| CD (p = 0.05) | 25.97 | 216.63 | 0.013 | 0.012 | 0.012 | 20.89 | 136.68 | 0.015 | 0.014 | 0.014 |
| Fertiliser management practices (B) | ||||||||||
| N1 | 1,504.2a | 5,289.13a | 0.20e | 0.19e | 0.20e | 1,470.3a | 5,068.5a | 0.21e | 0.20e | 0.20e |
| N2 | 1,240.3b | 2,882.28b | 0.37d | 0.35d | 0.35d | 1,248.8b | 2,891.4b | 0.37d | 0.35d | 0.36d |
| N3 | 1,238.1b | 2,859.44bc | 0.45b | 0.43b | 0.43b | 1,145.2c | 2,828.9b | 0.45b | 0.43b | 0.44b |
| N4 | 1,151.8c | 2,631.02bcd | 0.37d | 0.35d | 0.35d | 1,119.0c | 2,608.5bc | 0.36d | 0.35d | 0.35d |
| N5 | 1,150.2c | 2,626.74bcd | 0.44b | 0.42b | 0.42b | 1,121.8c | 2,618.7bc | 0.44b | 0.42b | 0.43b |
| N6 | 1,035.4d | 2,327.63de | 0.56a | 0.52a | 0.53a | 1,009.3d | 2,304.7d | 0.55a | 0.52a | 0.53a |
| N7 | 1,069.9d | 2,417.56cd | 0.41c | 0.38c | 0.39c | 1,042.5d | 2,384.4cd | 0.40c | 0.39c | 0.39c |
| N8 | 1,046.4d | 2,356.51de | 0.46b | 0.43b | 0.44b | 1,020.7d | 2,321.5d | 0.46b | 0.44b | 0.44b |
| N9 | 884.9e | 1,936.75e | 0.41c | 0.39c | 0.39c | 862.2e | 1,934.1e | 0.40c | 0.39c | 0.39c |
| SEM ± | 19.17 | 159.89 | 0.010 | 0.009 | 0.009 | 15.42 | 100.88 | 0.011 | 0.010 | 0.010 |
| CD (p = 0.05) | 55.09 | 459.53 | 0.028 | 0.026 | 0.026 | 44.31 | 289.94 | 0.031 | 0.030 | 0.030 |
| Interaction (A X B) | ||||||||||
| SEM ± | 27.12 | 226.12 | 0.013 | 0.014 | 0.013 | 21.80 | 142.67 | 0.015 | 0.015 | 0.015 |
| CD (p = 0.05) | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS |
Notes.
Crop planting techniques i.e., CE1-Conventional puddled transplanted rice (CT- TPR), CE2- Wide bed Transplanted rice (W Bed-TPR); Fertilizer management strategies i.e., N1- Control, N2- 100% RDF + ZnSO 4 25 kg ha−1, N3- 125% RDN + ZnSO 4 25 kg ha−1, N4- STCR based NPK application + ZnSO4 25 kg ha−1, N5- N2+ FYM (5 t ha−1), N6- N2+ FYM (5 t ha−1) + PSB (5 kg ha−1)+ Azotobactor 20 kg ha−1, N7- 75% RDN + FYM (5 t ha−1) + ZnSO4 25 kg ha−1, N8-75% RDN + FYM (5 t ha−1) + PSB (5 kg ha −1) + Azotobactor 20 kg ha−1 + ZnSO4 25 kg ha−1, N9- Organics Practices @ FYM (30 t ha−1)+PSB (5 kg ha−1) + Azotobactor 20 kg ha−1 + ZnSO4 25 kg ha−1, *NS- Non-significant, PERC_V = Percolation water volume, TWU_V= Total water use volume, WPIRRI= productivity of water in applied irrigation.
WPTCW, productivity of water needed in crop total water and WPETC = productivity of water in as evapo-transpiration only.