数字农科院2.0

Optimizing the rotation cycle of previous crops increases crop yield and environmental sustainability in paddy field rotation

文献类型： 外文期刊

作者： Gun, Siyu;Liu, Jing;Huang, Fangyuan;Wang, Junwei;Cheng, Hui;Li, Qigan;Jiang, Zhan;Zhu, Yonghua;Ma, Ni

作者机构：

关键词： Crop rotation;Rapeseed;Wheat;Environmental sustainability;Soil health

期刊名称： CROP JOURNAL

ISSN： 2095-5421

年卷期： 2025 年 13 卷 4 期

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： Global food production faces enormous challenges in increasing yields while promoting environmental sustainability. A field experiments in the ecotone between the Yangtze River Basin and the HuangHuai-Hai Plain evaluated the effects of changing preceding crop rotation cycles (wheat and rapeseed) on long-term wheat-rice (W) and rapeseed-rice (R) rotation systems. A comprehensive evaluation of crop rotation systems was conducted using life cycle assessment, considering productivity, economic benefits, carbon footprint (CF), and soil health. Compared with fallow-rice rotation (F), alternating rapeseed and wheat rotations increased equivalent yield by 60.4%-82.2%, reduced CF by 0.3%-5.7%, and improved soil health by 0.3%-47.5%. Additionally, adding rapeseed to rotations increased soil nutrient content and raised soil organic carbon stocks by 31.3%-40.5%. The 3R rotation (3-year rapeseed-rice and 1-year wheat-rice) boosted rice yield by 82.2% and annual economic benefits by 84.4%, offering an effective model for optimizing long-term R rotations. Similarly, the 2W rotation (2-year wheat-rice and 1-year rapeseed rice) enhanced rice yield by 70.0% and annual economic benefits by 65.9%, providing a successful example for optimizing long-term W rotations. The 3R rapeseed-based rotation and the 2W wheatbased rotation demonstrated good environmental sustainability. These rotation systems have broad potential in sustainable intensive farming, especially in China and similar regions. (c) 2025 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NCND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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