Small holders managed manure nutrient losses and their implications on environment

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.affiliationUniversity of South Africaen_US
cg.contributor.crpLivestock and Fishen_US
cg.contributor.donorGlobal Affairs Canadaen_US
cg.coverage.countryEthiopiaen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.13189/eer.2015.030402en_US
cg.identifier.urlhttp://www.hrpub.org/journals/article_info.php?aid=2626en_US
cg.isijournalISI Journalen_US
cg.issn1365-2745en_US
cg.issue4en_US
cg.journalEnvironment and Ecology Researchen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.ilriCLIMATE CHANGEen_US
cg.subject.ilriCROP-LIVESTOCKen_US
cg.subject.ilriCROPSen_US
cg.subject.ilriENVIRONMENTen_US
cg.subject.ilriLIVESTOCKen_US
cg.subject.ilriNRMen_US
cg.subject.ilriSOILSen_US
cg.volume3en_US
dc.contributor.authorAlemayehu, N.en_US
dc.contributor.authorMasafu, M.M.en_US
dc.contributor.authorEbro, A.en_US
dc.contributor.authorTegegne, Azageen_US
dc.date.accessioned2016-06-19T07:53:25Zen_US
dc.date.available2016-06-19T07:53:25Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/75762en_US
dc.titleSmall holders managed manure nutrient losses and their implications on environmenten_US
dcterms.abstractAnimal manure is rich in absorbable plant nutrients and an appropriate addition of manure into the soil respond to high crop productivity than use of commercial fertilizer. But volatilization of ammonia due to high temperature and leaching of nitrate, phosphorous and potassium into the soil due to rainfall results in the loss of manure nutrients. The objective of this study was to assess manure nutrient loss and gaseous emissions due to inappropriate manure management. The study was conducted in central Ethiopian highland, east of the capital Addis Ababa. The study included laboratory analysis for manure nutrients contents from sampled units and the manure management type was captured through focus group discussions. Storage age has impacted on nutrient losses as a result the highest loss of N, P and K occurred in 2 to 3 years at the rate of 84%, 19% and 42% , respectively. The analysis of variance showed that at P<0.05, there was a significant difference in storage age for N and K, but there was no significant difference for P across different storage ages. Shade type and manure heap height has no significant impact on nutrient losses. The total carbon equivalent (CO2e) gas emitted per household per annum was estimated at 11, 276 kg CO2e (i.e. 8 200 kg CO2e came from methane directly released by livestock plus their manure, 2 694 CO2e came from N2O emissions from manure management and 381.48 kg CO2e came from CO2 released from manure burning) that is about 2 tons CO2e per capita per year, twice the value reported for Ethiopia emission in 2005. The largest emissions were from methane (72.6%), nitrous oxide (24%) and carbon (3.4%), this result appeal for a need to improve livestock and manure management systems under smallholders' agriculture in order to curb the challenges of global carbon release.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceScientistsen_US
dcterms.available2015-07en_US
dcterms.bibliographicCitationAlemayehu, N., Masafu, M.M., Ebro, A. and Tegegne, A. 2015. Small holders managed manure nutrient losses and their implications on environment. Environment and Ecology Research 3(4):82-88.en_US
dcterms.extentp. 82-88en_US
dcterms.issued2015en_US
dcterms.languageenen_US
dcterms.publisherHorizon Research Publishing Co., Ltd.en_US
dcterms.subjectlivestocken_US
dcterms.subjectcropsen_US
dcterms.subjectenvironmenten_US
dcterms.typeJournal Articleen_US

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