Table 1.
Treatment | Amount of B/S/Zn added [kg ha−1] | LAI at 65 DAT | Panicle length [cm] | Grain weight/panicle [g] | 1000 − grain weight [g] | Grain yield [t ha−1] | Straw yield [t ha−1] |
---|---|---|---|---|---|---|---|
Absolute control | – | 1.70E | 24.2C | 0.67D | 18.5B | 2.15E | 6.53E |
Prilled urea | – | 2.21D | 26.5B | 0.75C | 20.4AB | 3.08D | 9.12D |
0.1% BCU | 0.28 | 2.53C | 27.3AB | 0.78C | 20.9A | 3.19 (3.57) a) CD | 9.42 (3.29)CD |
0.2% BCU | 0.56 | 2.65B | 27.5AB | 0.85B | 21.0A | 3.25 (5.52)BCD | 9.68 (6.14)BCD |
0.3% BCU | 0.84 | 2.68AB | 27.7AB | 0.88AB | 21.2A | 3.34 (8.44)ABC | 9.96 (9.21)ABC |
0.4% BCU | 1.12 | 2.72AB | 27.9AB | 0.90A | 21.3A | 3.43 (11.4)AB | 10.25 (12.4)AB |
0.5% BCU | 1.40 | 2.75A | 28.3A | 0.91A | 21.5A | 3.48 (13.0)A | 10.36 (13.6)A |
Absolute control | – | 1.70F | 24.2B | 0.67E | 18.5B | 2.15D | 6.53F |
Prilled urea | – | 2.21E | 26.5A | 0.75D | 20.4AB | 3.08C | 9.12E |
1.0% SCU | 2.83 | 2.50D | 27.0A | 0.84C | 20.8A | 3.21 (4.22)BC | 9.61 (5.37)DE |
2.0% SCU | 5.65 | 2.56D | 27.3A | 0.86BC | 21.1A | 3.43 (11.4)B | 10.15 (11.3)CD |
3.0% SCU | 8.48 | 2.65C | 27.6A | 0.89AB | 21.5A | 3.68 (19.5)A | 10.62 (16.5)BC |
4.0% SCU | 11.30 | 2.75B | 27.9A | 0.90AB | 21.7A | 3.72 (20.8)A | 11.16 (22.4)AB |
5.0% SCU | 14.13 | 2.98A | 28.2A | 0.92A | 21.9A | 3.85 (25.0)A | 11.53 (26.4)A |
Absolute control | – | 1.78D | 23.3D | 1.46E | 23.5B | 3.35F | 6.13E |
Prilled urea | – | 2.90BC | 26.5C | 1.70D | 25.7A | 4.76E | 8.31D |
0.5% ZnCU (ZnSHH) | 1.41 | 3.20AB | 27.3ABC | 1.80C | 26.1A | 4.97 (4.41)DE | 8.63 (3.85)CD |
0.5% ZnCU (ZnO) | 1.41 | 3.17AB | 27.1BC | 1.68D | 26.0A | 4.95 (3.99)DE | 8.58 (3.25)CD |
1.0% ZnCU (ZnSHH) | 2.82 | 3.26A | 27.8ABC | 1.71D | 26.5A | 5.23 (9.87)BCD | 8.93 (7.46)BC |
1.0% ZnCU (ZnO) | 2.82 | 3.23AB | 27.6ABC | 1.70D | 26.3A | 5.21 (9.45)CD | 8.88 (6.86)BC |
1.5% ZnCU (ZnSHH) | 4.23 | 3.25A | 28.3AB | 1.83C | 26.8A | 5.41 (13.7)ABC | 9.25 (11.3)AB |
1.5% ZnCU (ZnO) | 4.23 | 3.25A | 28.2ABC | 1.81C | 26.6A | 5.38 (13.1)ABC | 9.20 (10.7)AB |
2.0% ZnCU (ZnSHH) | 5.64 | 3.38A | 28.8AB | 1.97B | 27.1A | 5.56 (16.8)A | 9.47 (14.0)A |
2.0% ZnCU (ZnO) | 5.64 | 3.35A | 28.6AB | 1.93B | 27.0A | 5.52 (16.0)AB | 9.40 (13.2)A |
2.5% ZnCU (ZnSHH) | 7.05 | 3.42A | 29.0A | 2.10A | 27.2A | 5.61 (17.9)A | 9.59 (15.4)A |
2.5% ZnCU (ZnO) | 7.05 | 3.49A | 28.7AB | 2.05A | 27.1A | 5.58 (17.2)A | 9.51 (14.4)A |
Figures in parenthesis indicate % increase in yield over prilled urea.