Deshan Huang , Ruchun Chen , Dapeng Zhang

Hier Rice Research Center, Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, Hainan, China
Author    Correspondence author
Bioscience Methods, 2025, Vol. 16, No. 6   doi: 10.5376/bm.2025.16.0026
Received: 03 Sep., 2025    Accepted: 12 Oct., 2025    Published: 02 Nov., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Huang D.S., Chen R.C., and Zhang D.P., 2025, Field evaluation of nitrogen-use efficient rice varieties under varying fertilizer regimes, Bioscience Methods, 16(6): 270-279 (doi: 10.5376/bm.2025.16.0026)

 

Improving the nitrogen use efficiency (NUE) of rice is of great significance for ensuring crop yield while reducing the environmental impact caused by excessive nitrogen application. This study focuses on the field performance assessment of high-nitrogen-efficient rice varieties under different fertilization patterns, covering strategies such as conventional fertilization, reduced fertilization, slow-release fertilization, and organic combined fertilization. It analyzes the performance of the varieties in terms of nitrogen absorption, utilization efficiency, and yield composition, and screens the varieties suitable for the development of green agriculture - the optimal fertilization combination Through field trials conducted in major rice-growing areas in China (such as the middle and lower reaches of the Yangtze River, the main production areas in Northeast China, and the double-cropping rice-growing areas in South China), the responses and adaptability of different varieties to fertilization patterns were compared. Research has found that different rice varieties with high nitrogen efficiency show significant differences under different nitrogen application conditions, indicating that species-specific fertilization optimization is of great significance for improving nitrogen recovery rate and yield. This study provides a theoretical basis and practical path for constructing an efficient and low-input rice cultivation system, and offers scientific support for subsequent research on the genotype-fertilization interaction mechanism and the formulation of green agricultural policies.

Rice; Fertilization mode; Nitrogen use efficiency (NUE); Field experiment; Green agriculture