Multielement isotope ratio analysis was checked for its suitability as a means for the discrimination between agricultural products from integrated/conventional or organic production, respectively. Differences were mainly found for delta15N-values. Paprika and tomatoes from organic production in greenhouses showed delta15N-values above+7 per thousand, whereas corresponding products from conventional cultivation had delta15N-values near 0 per thousand. Lettuce, onions, cabbage and Chinese cabbage from field production had delta15N-values in the range of+5 to+6 and+5.5 to+7.5 per thousand, respectively (conventional and organic production); these overlapping differences do not permit a reliable discrimination. The same is true for wheat, showing average delta15N-values of+2.3+/-1.0 and+3.6+/-1.6 per thousand, respectively. The unexpected relative high 15N-enrichments of vegetables from integrated production are discussed as originating, at least partially, from 15N-enrichment in the soil by NH3 evaporation and denitrification.
In this paper we discuss the use of isotope ratios as indicators of organic production. Few studies have investigated the influence of plant nutrition on the isotopic signatures of plants. As plant nutrition is often significantly different between integrated and organic production systems the isotope ratios in the plants may reflect this. Plant samples from a 2-year field-experiment were analyzed for 15 N, 13 C and 34 S content of the bulk-material and 18 O-content of the leaf water. In this experiment cabbages (Brassica oleracea v. capitata f. alba cv. Rolly), onions (Allium cepa cv. Alisa Craig), lettuces (Lactuca sativa v. capitata cv. Ponchito) and Chinese cabbage (Brassica pekinesis cv. Parkin) were cultivated according to good agricultural practices for integrated and organic production. No differences in the d 34 S and d 18 O values of the plants grown under the two production systems were observed. The organically produced vegetables were significantly enriched in 15 N and depleted in 13 C compared to those grown under the integrated system.
Für effiziente und effektive Entscheidungsfindungen sind heute intelligente Analyse-Tools unerlässlich. In einer schnelllebigen und datengetriebenen Zeit muss die Berichterstattung zukunftsgerichtet, interaktiv und aus mehreren Datenquellen bestehen, um vom Management als unterstützende Entscheidungsgrundlage verwendet werden zu können. Dieser Artikel beschäftigt sich deshalb mit der Frage, inwiefern „Big Data“ optimal für effiziente und effektive Managemententscheidungen eingesetzt werden kann.
Die Ergebnisse dieses Beitrags sind im Rahmen des durch das BMBF geförderten Verbundprojektes "InterCycle" unter Projektträgerschaft des DLR entstanden. Stichwörter Controlling in Werkstätten für behinderte Menschen Kunden-Controlling Kundenindividuelle Zuschlagsätze Profitabilität von Kundenbeziehungen Scoring-Modell Ein profitables Kundenbeziehungsmanagement ist ein wichtiger Faktor für nachhaltigen unternehmerischen Erfolg. In kleinen und mittelständischen Unternehmen wird dies jedoch oft vernachlässigt. Ziel dieses Artikels ist es, Ansätze zur Steuerung der Kundenbeziehungen für kleine und mittelständische Unternehmen aufzuzeigen und sie im Rahmen einer Fallstudie in einer Werkstatt für behinderte Menschen zu implementieren.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.