The nitrogen topdressing mode of indica-japonica and indica hybrid rice are different after side-deep fertilization with machine transplanting.

ABSTRACT: Determination of the optimal fertilization method is crucial to maximize nitrogen use efficiency and yield of different rice cultivars. Side-deep fertilization with controlled-release nitrogen, in conjunction with machine transplanting and subsequent topdressing, was applied to Indica-japonica hybrid rice 'Yongyou1540' (YY1540) and indica hybrid rice 'Tianyouhuazhan' (TYHZ). Four nitrogen treatments were applied in 2018 and 2019: traditional nitrogen application with quick-release nitrogen (T₁), single-dose deep fertilization at transplanting with 100% controlled-release nitrogen (T₂), and deep fertilization of 70% controlled-release nitrogen and topdressing of 30% quick nitrogen at tillering (T₃), or at panicle initiation (T₄). Side-deep fertili

SUBMITTER: Wang X 

PROVIDER: S-EPMC7810741 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature