Mineral nutrient concentrations of the two types of applied green manure prepared from red clover and sunflower.

* DM: dry matter.
¶Radioactivity at the time of harvest of the experiment.
The means and associated standard errors (SE) of three replicate subsamples of the nitrogen (N) concentration, carbon (C) to N mass ratio, phosphorus (P) and zinc (Zn) concentrations, and 65Zn concentration are listed.