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Effects of inhibitors and biochar on nitrous oxide emissions, nitrate leaching, and plant nitrogen uptake from urine patches of grazing animals on grasslands: a meta-analysis
Cai, Yanjiang1,2; Akiyama, Hiroko1
2017
Source PublicationSOIL SCIENCE AND PLANT NUTRITION
ISSN0038-0768
EISSN1747-0765
Volume63Issue:4Pages:405-414
SubtypeArticle
AbstractExcreta (urine and dung) patches on grazed grasslands are significant sources of nitrogen (N) trace gas emissions and leaching. Nitrification inhibitors (NIs), urease inhibitors (UIs) and biochar have been tested to reduce N losses and increase N utilization in various agro-ecosystems. Although the effectiveness of NIs, UIs or biochar on N losses or N utilization for chemical N fertilizers and manures have been evaluated in previous studies, there has been no comprehensive assessment on their effectiveness for excreta patches of grazing animals on grassland. This study thus aims to better understand the effects of inhibitors and biochar on the major N dynamics in excreta patches. Thus, we analyzed the results of 44 studies (156, 65, 67, and 97 comparisons of N2O emissions, NO3- leaching, plant N uptake, and plant yields, respectively) to evaluate the effects of additives on N losses and uptake from excreta patches. Our results showed that compared with urine patches without additives, pyrazole derivatives (a NI), N-(n-butyl) thiophosphoric triamide (NBPT, a UI), and biochar did not affect N2O emissions, whereas dicyandiamide (DCD, a NI) and a combination of NBPT and DCD (NBPT + DCD) significantly reduced emissions by 51% and 48%, respectively. DCD and NBPT + DCD also significantly reduced NO3- leaching (46% and 42%, respectively), and increased plant N uptake (14% and 15%, respectively) and plant yields (7% and 12%, respectively). Our findings suggest that the application of DCD was effective in decreasing N losses and increasing N utilization from urine patches, but NBPT + DCD would be a better option, in order to avoid the potential increases in ammonia emissions following DCD application. However, the potential adverse impacts and economic viability of using the inhibitors should be evaluated fully before their large-scale application.
KeywordExcrement Greenhouse Gas Mitigation Livestock N2o Emission Nutrient Cycling
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1080/00380768.2017.1367627
WOS Subject ExtendedPlant Sciences ; Environmental Sciences & Ecology ; Agriculture
Indexed BySCI
WOS KeywordNITRIFICATION INHIBITORS ; DICYANDIAMIDE DCD ; GRAZED PASTURE ; CATTLE URINE ; PASTORAL SYSTEM ; DIFFERENT RATES ; N2O EMISSIONS ; BOVINE URINE ; SOIL CORES ; UREASE
Language英语
Quartile3区
TOP
WOS SubjectPlant Sciences ; Environmental Sciences ; Soil Science
WOS IDWOS:000413810400010
Funding OrganizationJapan Society for the Promotion of Science (JSPS) KAKENHI(26292184) ; JSPS(15F15403) ; National Natural Science Foundation of China(41573070)
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19179
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorAkiyama, Hiroko
Affiliation1.Natl Agr & Food Res Org, Inst Agroenvironm Sci, 3-1-3 Kannondai, Tsukuba, Ibaraki 3058604, Japan
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Sichuan, 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
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GB/T 7714
Cai, Yanjiang,Akiyama, Hiroko. Effects of inhibitors and biochar on nitrous oxide emissions, nitrate leaching, and plant nitrogen uptake from urine patches of grazing animals on grasslands: a meta-analysis[J]. SOIL SCIENCE AND PLANT NUTRITION,2017,63(4):405-414.
APA Cai, Yanjiang,&Akiyama, Hiroko.(2017).Effects of inhibitors and biochar on nitrous oxide emissions, nitrate leaching, and plant nitrogen uptake from urine patches of grazing animals on grasslands: a meta-analysis.SOIL SCIENCE AND PLANT NUTRITION,63(4),405-414.
MLA Cai, Yanjiang,et al."Effects of inhibitors and biochar on nitrous oxide emissions, nitrate leaching, and plant nitrogen uptake from urine patches of grazing animals on grasslands: a meta-analysis".SOIL SCIENCE AND PLANT NUTRITION 63.4(2017):405-414.
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