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Bacterivorous Nematodes Correlate with Soil Fertility and Improved Crop Production in an Organic Minimum Tillage System

dc.date.accessioned2020-08-26T14:34:36Z
dc.date.available2020-08-26T14:34:36Z
dc.date.issued2020-08-19
dc.identifierdoi:10.17170/kobra-202008251644
dc.identifier.urihttp://hdl.handle.net/123456789/11728
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kasselger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectconservation agricultureeng
dc.subjectcomposteng
dc.subjectsoil qualityeng
dc.subjectbio-testeng
dc.subjectmacro- and micronutrientseng
dc.subjectfree-living nematodeseng
dc.subjectmicrobial respirationeng
dc.subjectmicrobial biomasseng
dc.subject.ddc630
dc.titleBacterivorous Nematodes Correlate with Soil Fertility and Improved Crop Production in an Organic Minimum Tillage Systemeng
dc.typeAufsatz
dcterms.abstractReduced nutrient mineralization rates under minimum tillage are usually compensated by mineral fertilizer application. These, however, cannot be applied in organic farming systems. We hypothesized that an organic minimum tillage system based on frequent cover cropping and application of dead mulch would improve soil fertility and compensate for the potential negative effects of minimum tillage. Two long-term field experiments were set up in 2010 and 2011 to compare plowing versus minimum tillage including the application of transferred mulch. A second factor, the application of compost versus mineral potassium and phosphorus, was also compared. In 2019, soils were analyzed for soil pH, organic carbon, macro- and micronutrients, microbial biomass, microbial activity, and total nematode abundance. In addition, performance of pea in the same soils was determined under greenhouse conditions. Across both experiments, macronutrients (+52%), micronutrients (+11%), microbial biomass (+51%), microbial activity (+86%), and bacterivorous nematodes (+112%) increased in minimum tillage compared to the plow-based system. In the greenhouse, pea biomass was 45% higher in the soil that had been subjected to minimum tillage compared to the plow. In conclusion, soil fertility can be improved in organic minimum tillage systems, which include intensive cover cropping and the application of dead mulch, over plow-based systems.eng
dcterms.accessRightsopen access
dcterms.creatorSchmidt, Jan Henrik
dcterms.creatorHallmann, Johannes
dcterms.creatorFinckh, Maria Renate
dc.relation.doidoi:10.3390/su12176730
dc.subject.swdKonservierende Bodenbearbeitungger
dc.subject.swdKompostger
dc.subject.swdBodengüteger
dc.subject.swdMikronährstoffger
dc.subject.swdMengenelementger
dc.subject.swdBiomasseger
dc.type.versionpublishedVersion
dcterms.source.identifierEISSN 2071-1050
dcterms.source.issueIssue 17
dcterms.source.journalSustainabilityeng
dcterms.source.pageinfo6730
dcterms.source.volumeVolume 12
kup.iskupfalse


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