<p>Treatment medians for topsoil inorganic nitrogen (mg/kg oven dry soil), measured at a depth of 5-10 cm after three years of cropping. Square brackets indicate the lower and higher plot medians. N = the number of raw data points which informed each of the plot medians.</p>

Treatment medians for topsoil inorganic nitrogen (mg/kg oven dry soil), measured at a depth of 5-10 cm after three years of cropping. Square brackets indicate the lower and higher plot medians. N = the number of raw data points which informed each of the plot medians.