Tillage | Added fertilizer | Tiller number | Culm length (cm) | Panicle length (cm) | Panicle number | SPAD value of flag leaves | |

Tillering stage | Jointing stage | ||||||

No-tillage | 40 kg N of S30-40 in basal dressing | 1165 b | 1145 b | 93 c | 9.5 ab | 763 b | 39.6 b |

No-tillage | 20 kg N of AS twice in second and third topdressings | 1004 b | 1031 b | 88 b | 9.1 a | 565 a | 37.1 a |

Tillage | 20 kg N of AS twice in second and third topdressings | 517 a | 819 a | 84 a | 10.0 b | 531 a | 40.4 b |