Long-term incorporation of manure with chemical fertilizers reduced total nitrogen loss in rain-fed cropping systems
文献类型： 外文期刊
作者： Duan, Yinghua 1 ; Xu, Minggang 1 ; Gao, Suduan 2 ; Liu, Hua 3 ; Huang, Shaomin 4 ; Wang, Boren 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Engn Lab Improving Qual Arable Land, Beijing 100081, Peoples R China
2.USDA ARS, San Joaquin Valley Agr Sci Ctr, Parlier, CA 93648 USA
3.Xinjiang Acad Agr Sci, Inst Soil & Fertilizer, Urumqi 830091, Peoples R China
4.Henan Acad Agr Sci, Inst Plant Nutr & Agr Resources, Zhengzhou 450002, Henan, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2016 年 6 卷
页码：
收录情况： SCI
摘要： Improving soil fertility/productivity and reducing environmental impact of nitrogen (N) fertilization are essential for sustainable agriculture. Quantifying the contribution of various fertilization regimes to soil N storage and loss has been lacking in a wide range of spatiotemporal scales. Based on data collected from field experiments at three typical agricultural zones in China, soil N dynamics and N changes in soil profile (0-100 cm) were examined during 1990-2009 under chemical fertilization, manure incorporation with fertilizer, and fertilizer with straw return treatments. We employed a mass balance approach to estimate the N loss to the environment after taking into account soil N change. Results showed a significant increase in soil N storage under manure incorporation treatments, accompanied with the lowest N loss (ave. 20-24% of total N input) compared to all other treatments (ave. 35-63%). Both soil N distribution and mass balance data suggested higher leaching risk from chemical fertilization in acidic soil of southern China with higher precipitation than the other two sites. This research concludes that manure incorporation with chemical fertilizer not only can achieve high N use efficiency and improve soil fertility, but also leads to the lowest total N loss or damage to the environment.
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