Long-term nitrogen fertilization enhances crop yield potential in no-tillage systems through enhancing soil fertility

文献类型： 外文期刊

第一作者： Li, Shengping

作者： Li, Shengping;Wu, Xueping;Song, Xiaojun;Gao, Huizhou;Zhang, Mengni;Yang, Peng;Liu, Xiaotong;Gao, Huizhou;Liang, Guopeng;Zheng, Fengjun

作者机构：

关键词： Conservation agriculture; Productivity; Rainfall; Sustainable development

期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：10.9； 五年影响因子：12.7 ）

ISSN： 0921-3449

年卷期： 2024 年 206 卷

页码：

收录情况： SCI

摘要： Nitrogen addition can weaken yield reduction under no-tillage, a fundamental component of conservation tillage. However, the potential long-term benefits of nitrogen addition in enhancing the yield capacity of no-tillage by improving soil quality remain uncertain. Here we investigated the effects of tillage and nitrogen addition on both yield and soil quality through a comprehensive long-term experiment. We found that increased nitrogen inputs resulted in higher yield under no-tillage, particularly in wet years. Over an 18-year period, the rate of yield enhancement attributed to nitrogen addition varied from 8.2 % to 24.5 %, resulting in the most optimal yield under no-tillage with adequate nitrogen addition. Similarly, soil quality of no-tillage exhibited improvement with nitrogen inputs, especially in terms of organic carbon and the availability of nitrogen and phosphorus, thereby enhancing production potential. This study concluded that adequate nitrogen addition further improved both crop production and the sustainability of no-tillage systems.

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