Table 3.
Grain yield and its components in different fertilizer treatments.
| Year (Y) | Location (L) | Treatment (T) | GY (Mg ha−1) | PN (m−2) | SPP (panicle−1) | SN (m−2) | GF (%) | GW (mg) | HI (%) | ATB (Mg ha−1) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | Honghu | CK | 6.74 a | 180.0 a | 121.0 a | 21,628 a | 88.6 a | 27.2 a | 52.2 b | 12.9 a |
| FFP | 7.94 b | 247.5 b | 130.1 a | 32,158 b | 87.8 a | 27.6 a | 46.7 a | 16.9 b | ||
| MFP | 8.02 b | 259.5 b | 130.3 a | 33,734 b | 88.1 a | 28.1 a | 47.0 a | 17.1 b | ||
| CRU | 8.22 c | 252.5 b | 131.6 a | 33,163 b | 88.3 a | 27.7 a | 48.2 a | 17.4 b | ||
| Mean | 7.75 | 234.9 | 128.3 | 30,170 | 88.2 | 27.6 | 48.5 | 16.1 | ||
| Nanchang | CK | 6.34 a | 176.5 a | 135.3 a | 23,820 a | 85.7 a | 26.0 a | 50.9 b | 12.5 a | |
| FFP | 7.60 b | 237.4 b | 143.3 a | 34,006 b | 86.1 a | 26.5 a | 47.3 a | 16.1 b | ||
| MFP | 7.99 c | 253.1 b | 144.5 a | 36,596 c | 85.8 a | 26.1 a | 48.8 a | 16.3 b | ||
| CRU | 9.00 d | 272.4 c | 144.6 a | 39,448 d | 85.8 a | 26.1 a | 49.7 ab | 18.2 c | ||
| Mean | 7.73 | 234.9 | 141.9 | 33,467 | 85.9 | 26.2 | 49.2 | 15.8 | ||
| 2010 | Honghu | CK | 6.23 a | 133.0 a | 127.0 a | 16,801 a | 89.6 a | 28.6 a | 50.4 c | 12.4 a |
| FFP | 6.63 b | 146.7 b | 150.0 b | 21,992 b | 91.1 a | 28.7 a | 45.1 a | 14.5 b | ||
| MFP | 7.10 c | 165.6 c | 162.1 b | 27,290 c | 89.3 a | 28.2 a | 47.0 b | 15.1 b | ||
| CRU | 6.91 c | 166.5 c | 163.6 b | 26,884 c | 89.7 a | 28.4 a | 48.6 b | 14.5 b | ||
| Mean | 6.74 | 153.2 | 150.7 | 23,242 | 89.9 | 28.5 a | 47.5 | 14.1 | ||
| Nanchang | CK | 5.63 a | 171.3 a | 132.6 a | 22,650 a | 83.5 a | 25.5 a | 49.9 c | 11.3 a | |
| FFP | 7.20 b | 231.3 b | 140.5 a | 32,444 b | 82.9 a | 25.7 a | 45.8 a | 15.7 b | ||
| MFP | 7.67 c | 246.8 b | 140.3 a | 34,608 c | 83.1 a | 25.1 a | 47.4 b | 16.0 b | ||
| CRU | 8.43 d | 257.0 b | 140.4 a | 36,054 d | 82.7 a | 25.6 a | 48.0 b | 17.6 c | ||
| Mean | 7.23 | 226.6 | 138.5 | 31,439 | 83.1 | 25.5 | 48.0 | 15.2 | ||
| ANOVA | T | *** | *** | *** | *** | ns | ns | *** | *** | |
| Y | *** | *** | *** | *** | ns | ns | *** | ** | ||
| L | * | *** | ns | *** | *** | *** | * | ns | ||
| T × Y | ns | * | ns | ns | ns | ns | ns | ns | ||
| T × L | *** | ** | * | ** | ns | ns | ns | ns | ||
| Y × L | ** | *** | *** | *** | ns | ns | ns | ns |
Within a column for each location, means followed by the same letters are not significantly different at 5% level according to LSD. GY, grain yield; PN, panicle number; SPP, spikelet number per panicle; SN, spikelet number; GF, grain filling percentage; GW, grain weight; HI, harvest index; ATB, aboveground biomass.