Biomass, Radiation Use Efficiency, and Nitrogen Utilization of Ratoon Rice Respond to Nitrogen Management in Central China.

ABSTRACT: Ratoon rice is proposed as a promising way to improve rice productivity via increasing harvest frequency. Nitrogen (N) is the most effective in promoting the development and growth of ratoon plants. However, limited information is available on how different N management practices affect the biomass production of the ratoon crop (RC) through influencing canopy light interception, radiation use efficiency (RUE), and N utilization. Field experiments were conducted in central China in 2016 and 2017 to examine the effects of N management practices on the biomass accumulation of RC and the underlying physiological mechanisms. The N rates (100 vs. 200 kg N ha^-1) in the main crop (MC) had a small and inconsistent effect on the biomass accumulation of RC. N application at 15 days

SUBMITTER: Zheng C 

PROVIDER: S-EPMC9112333 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature