文献类型： 外文期刊

作者： Zhao, Kainan ¹ ; Huang, Ming ¹ ; Li, Youjun ¹ ; Wu, Jinzhi ¹ ; Tian, Wenzhong ² ; Li, Junhong ² ; Hou, Yuanquan ¹ ; Wu, Shanwei ¹ ; Zhang, Jun ¹ ; Zhang, Zhenwang ¹ ; Zhao, Zhiming ¹ ; Ahammed, Golam Jalal ⁴ ; Li, Guoqiang ⁵ ;

作者机构： 1.Henan Univ Sci & Technol, Coll Agr, Luoyang 471023, Henan, Peoples R China

2.Luoyang Acad Agr & Forestry Sci, Luoyang 471023, Henan, Peoples R China

3.Chinese Acad Agr Sci Luoyang, Luoyang Dryland Agr Test Site, Luoyang 471023, Henan, Peoples R China

4.Henan Univ Sci & Technol, Coll Hort & Plant Protect, Luoyang 471023, Henan, Peoples R China

5.Henan Acad Agr Sci, Inst Agr Econ & Informat, Zhengzhou 450002, Henan, Peoples R China

关键词： Grain yield; Water use efficiency; Soil properties; Nitrate-N accumulation; Dryland

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.61； 五年影响因子：3.581 ）

ISSN： 0718-9508

年卷期：

页码：

收录情况： SCI

摘要： Organic fertilizer and straw return are sustainable measures for increasing crop yield and improving the soil environment. The present study investigated the effects of combined organic fertilizer and straw return on soil nutrient status, soil nitrate-N distribution, and crop productivity in rainfed maize-wheat rotation on the southeast Loess Plateau. Based on a long-term field fertilization experiment, we reported the effects of four fertilizer management strategies (i.e., chemical NP fertilizers [NP, conventional practice]; chemical NPK fertilizers [NPK]; chemical NP fertilizers combined with organic fertilizer [NPOF]; and chemical NP fertilizers combined with organic fertilizer and straw return [NPOFS]) on productivity in summer maize and winter wheat from 2015 to 2020 season and the soil properties in the 0-60-cm soil layer and the soil nitrate-N distribu-tion in the 0-380-cm soil layer at maturity of winter wheat in 2020. The results averaged from 2015 to 2020 showed that NPOFS increased the grain yield of summer maize by 10.34-11.25%, and water use efficiency by 21.44-32.54%, compared with NP, NPK, and NPOF; however, it had no significant effect on winter wheat yield. All four treatments benefited topsoil (0-20 cm) properties, and NPOFS was superior to NP, NPK, and NPOF in increasing the content of soil organic matter, total nitrogen, available phosphorus, and available potassium, in the 0-60-cm soil layer. Meanwhile, compared with NP and NPK, NPOFS significantly increased soil nitrate-N accumulation by 63.22% and 49.87%, respectively, in the 0-100-cm soil layer and decreased by 24.78% and 10.19%, respectively, in the 200-380-cm soil layer. These results suggest that the combination of organic fertilizer and straw return could improve soil fertility and summer maize productivity and significantly reduce nitrate-N accumulation in the 200-380-cm soil layer. Their use should be recommended for coordinated crop productivity and the soil environment in rainfed summer maize-winter wheat rotation on the southeast Loess Plateau.