Table 3.
Effect of fertilization management on yield components(No. of panicles, No.of spikelets per panicle, grain weight, seed setting rate), dry matter accumulation and harvest index and their coefficients of variation.
| Treatments | No. of panicles (m−2) |
No. of spikelets per panicle | Grain weight (mg) |
Seed setting rate (%) | Total dry matter (t ha−1) |
Harvest index (%) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | CV | Average | CV | Average | CV | Average | CV | Average | CV | Average | CV | |
| Wheat | ||||||||||||
| CF | 391.1 ± 34.2 a | 24.8 | 37.0 ± 2.3 a | 17.8 | 41.9 ± 1.6 a | 10.5 | – | – | 10.9 ± 0.5 a | 23.5 | 52.6 ± 1.6 a | 14.9 |
| RBIT | 405.9 ± 26.1 a | 18.2 | 37.1 ± 2.3 a | 17.3 | 42.4 ± 1.9 a | 12.8 | – | – | 11.7 ± 0.4 a | 15.5 | 53.6 ± 1.8 a | 15.2 |
| RBITS | 386.8 ± 21.7 a | 15.9 | 38.4 ± 2.1 a | 15.4 | 42.0 ± 1.6 a | 10.5 | – | – | 11.0 ± 0.3 a | 12.5 | 51.3 ± 1.8 a | 15.8 |
| Rice | ||||||||||||
| CF | 327.1 ± 7.9 A | 12.2 | 123.4 ± 2.3 C | 9.5 | 30.4 ± 0.2 A | 3.9 | 89.9 ± 1.0 A | 5.7 | 19.1 ± 0.3 B | 8.1 | 49.4 ± 0.9 A | 8.5 |
| RBIT | 344.5 ± 6.6 A | 10.0 | 130.3 ± 1.5 B | 6.1 | 30.3 ± 0.3 A | 5.5 | 85.4 ± 1.3 B | 8.0 | 19.9 ± 0.3 A | 6.5 | 50.1 ± 0.8 A | 8.3 |
| RBITS | 337.5 ± 7.4 A | 11.5 | 138.7 ± 1.1 A | 4.1 | 30.3 ± 0.3 A | 5.2 | 84.2 ± 1.5 B | 9.1 | 20.6 ± 0.2 A | 5.8 | 49.4 ± 0.7 A | 6.7 |
CF: conventional fertilization; RBIT: reduced basal and increased topdressing fertilizer rate; RBITS: RBIT combined with straw incorporation. MWD: mean weight diameter. Different lowercase and uppercase letters represent significant differences in yield components of wheat and rice, respectively (P ≤ 0.05). Data: mean ± standard error (SE); −: no data.