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Flooding and its influence on diazotroph populations and soil nitrogen levels in the Okavango Delta
(South African Journal of Botany http://www.elsevier.com/wps/find/journaldescription.cws_home/707238/description#description, 2004)
Effects of flooding on soil nitrogen (N), and asymbiotic
nitrogen fixing bacterial (diazotroph) populations of the
Okavango Delta were investigated. Diazotrophs from
the rhizosphere of dominant annual and perennial
grasses ...