Chao Wang

Zhuji City Agricultural Technology Extension Center, Zhuji, 311800, Zhejiang, China
Author    Correspondence author
Plant Gene and Trait, 2025, Vol. 16, No. 3   
Received: 14 Apr., 2025    Accepted: 17 May, 2025    Published: 28 Jul., 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.

Rice (Oryza sativa L.) is a staple food for over half of the world's population, making its yield improvement crucial for global food security. This meta-analysis synthesizes findings from various studies to evaluate the effectiveness of different rice yield improvement techniques. The analysis covers water management practices, responses to elevated atmospheric CO₂ and ozone concentrations, biochar applications, and nutrient management strategies. Water management techniques such as alternate wetting and drying have been shown to reduce methane emissions significantly but may slightly decrease yields. Elevated CO₂ levels generally increase rice yields, although this effect can be mitigated by elevated ozone levels and higher temperatures. Biochar application improves soil health and increases rice yields while reducing greenhouse gas emissions. Nutrient management, particularly the interaction between nitrogen and potassium, enhances canopy performance and overall yield. The findings underscore the importance of integrated, location-specific approaches to rice cultivation that consider environmental impacts and sustainability.

Rice yield improvement; Water management; Elevated CO₂; Biochar application; Nutrient management