Returning Different Organic Materials to the Field: Effects on Labile Soil Nitrogen Pool under Drip Irrigation with Film Mulching in a Semi-Arid Soil
文献类型： 外文期刊
作者： Cheng, Wei 1 ; Ma, Xiaochi 2 ; Wu, Jinggui 1 ; Gu, Yue 1 ; Duo, Xinqu 1 ;
作者机构： 1.Jilin Agr Univ, Coll Resources & Environm Sci, Changchun 130118, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Natl Agr Expt Stn Agr Environm Luhe, Nanjing 210014, Peoples R China
关键词： organic fertilization; soil fertility; soil nitrogen management; sustainable agriculture
期刊名称：APPLIED SCIENCES-BASEL （ 影响因子：2.7； 五年影响因子：2.9 ）
ISSN：
年卷期： 2024 年 14 卷 7 期
页码：
收录情况： SCI
摘要： The purpose of this study was to observe the changes in soil nitrogen pools (active organic and inorganic nitrogen fractions) after applying organic materials under drip irrigation with film mulching in a semi-arid soil. The two-year field experiment included four fertilization treatments: maize straw, fodder grass, sheep manure, and a control treatment with no organic material applied (CK). The results showed that the application of maize straw and sheep manure significantly increased the soil total nitrogen content by 9.02 similar to 13.33% and 11.02 similar to 17.27%, respectively, while no significant improvement was found with the use of fodder grass. Compared with CK, returning organic materials to the field increased the soil active nitrogen pools, except for ammonium nitrogen content. Meanwhile, the content of particulate organic nitrogen was significantly increased by 42.11 similar to 78.85% under the application of organic materials, which took the highest proportion of active nitrogen pools and was sensitive to fertilization treatments. Among the three organic materials, maize straw and sheep manure increased the soil active nitrogen content the most. In conclusion, both maize straw and sheep manure are the optimum organic materials, which could be applied for improving soil nitrogen storage under drip irrigation with film mulching within semi-arid areas.
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