The economic benefits, energy use efficiency, and carbon footprint of fragrant super rice and nonfragrant super rice under different planting methods and nitrogen levels.

IF 3.3 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2025-02-04 DOI:10.1002/jsfa.14150

Jiewen Zheng, Li Lin, Yuzhan Li, Zaiman Wang, Xiangru Tang, Shenggang Pan, Zhaowen Mo

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引用次数: 0

Abstract

Background: The objective of this study was to investigate the input and output of energy, carbon input and sequestration, and economic benefits of fragrant and nonfragrant rice under different crop management practices, with the aim of providing theoretical guidance for sustainable rice production. Two high-yield and popular rice varieties, Yuxiangyouzhan and Jiyou615, were grown under three nitrogen fertilizer levels (0, 150, and 220 kg ha^-1) and three planting methods (manual transplanting, mechanical transplanting, and mechanical direct seeding) during 2018 and 2019.

Results: The results showed that the economic, energy, and carbon benefits of the different rice varieties varied in response to the different fertilizations and planting methods. The average energy outputs of Yuxiangyouzhan and Jiyou615 were 214 423.26 and 218 474.90 MJ ha^-1, respectively. The mean harvest index and mean energy use efficiency of Jiyou615 were slightly greater, at 4.21% and 3.93%, respectively, than those of Yuxiangyouzhan, while the mean carbon input-sequestration ratio of Yuxiangyouzhan was slightly greater, at 1.79%, than that of Jiyou615. Yuxiangyouzhan had a significantly greater mean benefit-cost ratio (5.76%) than Jiyou615. In addition, Yuxiangyouzhan had a significantly greater mean nominal economic return on energy input (12.21%), nominal economic return on energy output (13.20%), nominal economic return on carbon input (12.65%), and nominal economic return on carbon sequestration (11.31%) than Jiyou615.

Conclusion: The results suggest that suitable high-yield and high-quality varieties with better consumer demand and the synergistic effect of variety and crop management in sustainable rice production are highly meaningful. © 2025 Society of Chemical Industry.

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.