IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation
Hua, Keke1,2; Zhu, Bo1
2018
Source PublicationNUTRIENT CYCLING IN AGROECOSYSTEMS
ISSN1385-1314
EISSN1573-0867
Volume112Issue:1Pages:133-146
SubtypeArticle
AbstractThe transportation of dissolved organic nitrogen (DON) from croplands to aquatic ecosystems potentially negatively influences water quality. Sustaining crop yields while decreasing the environmental impacts of the DON from nitrogen fertilizer application is a key challenge in sustainable agriculture. However, few field datasets have measured the lateral transportation of DON via hydrological routes under different nitrogen fertilizer applications, particularly in sloping croplands. Using lysimeter plots (8 x 4 m(2)), we measured DON loss via overland flow, interflow, and soil erosion under different fertilizer applications under a long-term field experiment. There were four treatments, including no fertilizer (CK), mineral fertilizer (NPK), mineral fertilizer combined with swine manure (MNPK), and mineral fertilizer combined with crop straw (CNPK). In comparison to the NPK treatment, the annual DON loss fluxes via overland flow, interflow, and soil erosion for the MNPK treatment were significantly (P < 0.05) increased by 68.8, 100.6, and 63.7%, respectively. Conversely, this was significantly decreased by 182.6, - 14.1, and 49.4%, respectively, under the CNPK treatment. Correspondingly, the yield-scaled total DON losses for the MNPK and CNPK treatments were significantly increased by 78.8 and - 18.2% compared to the NPK treatment (0.33 +/- 0.04 kg N t(-1) grain). Therefore, long-term continuous manure application is associated with an increased risk of DON environmental pollution. Alternatively, the incorporation of crop straw can be recommended as a means of decreasing DON pollution while maintaining crop yield.
KeywordDissolved organic nitrogen transport Hydrological routes Long-term crop straw incorporation Yield-scaled DON losses
DOI10.1007/s10705-018-9937-3
Indexed BySCI
WOS KeywordHILLSLOPE CROPLAND ; MANURE APPLICATION ; SUBTROPICAL CHINA ; SICHUAN BASIN ; PURPLE SOIL ; CARBON ; MATTER ; BIODEGRADABILITY ; FERTILIZER ; INTERFLOW
Language英语
Quartile2区
Funding ProjectNatural Science Foundation of China[41430750] ; Natural Science Foundation of Anhui Province[1608085QD78] ; Foundation of Anhui Academic of Agricultural Science[16A1028] ; Foundation of Anhui Academic of Agricultural Science[18C1033]
TOP
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000441119600009
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Foundation of Anhui Academic of Agricultural Science
PublisherSPRINGER
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Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23488
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorZhu, Bo
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
2.Anhui Acad Agr Sci, Soil & Fertilizer Res Inst, Hefei 230031, Anhui, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Hua, Keke,Zhu, Bo. Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2018,112(1):133-146.
APA Hua, Keke,&Zhu, Bo.(2018).Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation.NUTRIENT CYCLING IN AGROECOSYSTEMS,112(1),133-146.
MLA Hua, Keke,et al."Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation".NUTRIENT CYCLING IN AGROECOSYSTEMS 112.1(2018):133-146.
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