The immediate and prolonged (i.e. two and three years after the treatment) effect of fertilizing with organic wastes on the content in tissues and consumption rate of potassium, calcium and manganese by Chenopodium album in various crops, in its varying contribution to the weed biomass was studied.
It was found that Chenopodium album share was differentiated in dependence on the combination of fertilization and the cultivated plant. The content of K, Ca and Mg in dry matter depended on the kind of fertilization (before beginning the experiment) and the cultivated plant. The amount of Chenopodium album biomass from each fertilized object most influenced the uptake of those macro elements from an area unit.