d="par0005">Five levels of glucose applied weekly to four different soils for seven weeks.
dd><dt class="label">•dt><dd>d="par0010">A positive linear relationship between glucose amounts and priming.
dd><dt class="label">•dt><dd>d="par0015">Three soils showed substrate thresholds – minimum C input required to stimulate positive priming.
dd><dt class="label">•dt><dd>d="par0020">Priming was not strongly related to soil microbial biomass.
dd><dt class="label">•dt><dd>d="par0025">Labile C input increased priming and accelerated soil C cycling.
dd>dl>