title: Course of uptake of weed-borne nitrogen by maize, tested with (15)n.
abstract: Abstract   The course of uptake of weed-borne nitrogen by maize was tested with (15)N in a pot experiment with silty loam after common growth of maize and Chenopodium album L., and mulching the weed in the 5-leaf stage of maize. Harvests 4,8 and 12 weeks after mulching show that the maize took up 35, 63 and 70% of the weed-borne nitrogen, resp., in consequence of a rapid and almost complete mineralization. The portion of weed-borne nitrogen in total N of the maize was 16% at all harvest dates. The differences in yield between weeded and unweeded maize were not significant neither at 5-leaf stage nor at corn maturity.
authors.affiliation: a    Sektion Bodenforschung, UFZ-Umweltforschungszentrum Leipzig-Halle GmbH   ,  Bad Lauchstädt ,    Deutschland.
authors.forename: I
authors.initials: I
authors.lastname: Merbach