Effects of fertilization and different straw return methods on soil fertility and rice yield in double-season paddy fields

文献类型： 外文期刊

第一作者： Zhang, Nan

作者： Zhang, Nan;Bai, Lingyu;Wei, Xiaxin;Li, Tao;Su, Shiming;Zeng, Xibai;Wen, Jiong;Tang, Yuefeng;Peng, Zhi

作者机构：

关键词： Rice field; Straw return; Organic carbon; Early and late rice; Yield

期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.2； 五年影响因子：7.6 ）

ISSN： 2213-2929

年卷期： 2025 年 13 卷 5 期

页码：

收录情况： SCI

摘要： Applying organic fertilizer is an important traditional agriculture practice in China. With the development of its fertilizer industry, the fertilizer application rate in China has increased annually. However, a large amount of organic matter, such as straw, cannot be fully utilized. The aim of this study was to analyze the effects of five rice straw return methods on soil fertility and rice yield in double-cropping rice areas through long-term cultivation experiments. Straw return increases the contents of soil nutrients, especially, potassium, and activities of enzymes associated with the C- and N-cycle. The treatment with early rice returning + early rice straw full crushing and returning + late rice straw full mulching and returning + deep rotary tillage or deep tillage (depth, approximately 0-20 cm) exhibited the best effects, which increased the yield of early and late rice by more than 5 %. These results provide a robust theoretical basis for improving the soil fertility and rice yield in doublecropping rice areas using straw return methods.

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