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Evaluation of coastal farming under salinization and optimized fertilization strategies in China
Xie, Hanyou1,2; Li, Jing1; Zhang, Yitao1; Xu, Xiangbo1,3; Wang, Lingqing1; Ouyang, Zhu4
2021-11-25
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume797Pages:11
Corresponding AuthorLi, Jing(jingli@igsnrr.ac.cn)
AbstractNitrogen (N) application and salinity are key factors influencing crop yield and net economic benefit in coastal saline-alkali soils. Integrated analysis and optimization of the benefits of wheat-corn cropping under different nitrogen applications in saline soils could provide lay the scientific basis for sustainable development of agriculture in coastal farmlands. A total of 571 pair-reviewed literature data on two-factor cross-over trials, involving soil salinity and nitrogen application, were integratively analyzed. Based on multi-objective optimization of crop yield, agronomic and net economic benefits, and soil nitrate residue in coastal saline-alkali soils, area-specific nitrogen application strategies were developed. The results showed that increasing the N application rate under 1.8-2.9 parts per thousand salinity can increase crop yield and economic benefits. The net economic benefit of crops was negative under 3.5 parts per thousand salinity. Above that threshold of 3.5 parts per thousand, it is not suitable for planting food crops. Consequently, it is necessary to strengthen the management of saline-alkali soils. While the application rate of 2.78 x 10(8) kg N in winter wheat/summer corn cropping ensured environmental protection, farmers preferred 3.08 x 10(8) kg of nitrogen dose. These were respectively 40.4% and 33.9% lower than the traditional dose and with relatively higher benefits too. (C) 2021 Elsevier B.V. All rights reserved.
KeywordSaline-alkali soil Net benefit Nitrogen management Salt effect Integrated analysis
DOI10.1016/j.scitotenv.2021.149038
WOS KeywordSALINE-ALKALI SOIL ; USE EFFICIENCY ; NITROGEN USE ; CEREAL PRODUCTION ; WHEAT YIELD ; MAIZE ; MANAGEMENT ; NITRATE ; IRRIGATION ; WATER
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDA23050101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA26050202] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017073]
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000701204400012
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/165789
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLi, Jing
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China
3.UN Environm Int Ecosyst Management Partnership UN, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Xie, Hanyou,Li, Jing,Zhang, Yitao,et al. Evaluation of coastal farming under salinization and optimized fertilization strategies in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,797:11.
APA Xie, Hanyou,Li, Jing,Zhang, Yitao,Xu, Xiangbo,Wang, Lingqing,&Ouyang, Zhu.(2021).Evaluation of coastal farming under salinization and optimized fertilization strategies in China.SCIENCE OF THE TOTAL ENVIRONMENT,797,11.
MLA Xie, Hanyou,et al."Evaluation of coastal farming under salinization and optimized fertilization strategies in China".SCIENCE OF THE TOTAL ENVIRONMENT 797(2021):11.
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