Keck, Markus

[["dc.bibliographiccitation.artnumber","1641"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Sustainability"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Trong Hung, Dao"],["dc.contributor.author","Hughes, Harold"],["dc.contributor.author","Keck, Markus"],["dc.contributor.author","Sauer, Daniela"],["dc.date.accessioned","2019-07-09T11:50:33Z"],["dc.date.available","2019-07-09T11:50:33Z"],["dc.date.issued","2019"],["dc.description.abstract","In Vietnam, approximately 39 million tons of rice (Oryza sativa) residues accrue every year. In this study, we quantified soil nutrient balances of paddy rice fields under different crop-residue management practices in northern Vietnam. On twelve farms, we calculated nutrient balances for the four prevalent rice-residue management practices, i.e., (1) direct incorporation of rice residues into the soil, (2) application of rice-residue compost, (3) burning of rice residues on the field, and (4) the use of rice residues as fodder for livestock. Soils under practices (1) to (3) showed a positive nutrient balance, which indicates that soil fertility can be maintained under these practices and that the amounts of chemical fertilizers can be considerably reduced. If not, there is a risk of eutrophication in the surrounding surface waterbodies. Practice (4), in contrast, resulted in a negative nutrient balance, which indicates the need for returning nutrients to the soils. From our findings we conclude that knowledge about the effects of rice-residue management practices on nutrient cycles may help to optimize the use of fertilizers, resulting in a more sustainable form of agriculture."],["dc.identifier.doi","10.3390/su11061641"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15962"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59795"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","MDPI"],["dc.relation.eissn","2071-1050"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","550"],["dc.title","Rice-Residue Management Practices of Smallholder Farms in Vietnam and Their Effects on Nutrient Fluxes in the Soil-Plant System"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]