The uptake of cadmium and zinc by the bird-cherry oat aphid Rhopalosiphum padi (Homoptera: Aphididae) feeding on wheat grown on sewage sludge amended agricultural soil

abonos absorption de substances nutritives alimentation cadmio cadmium cinc engrais feeding fertilizers heavy metals lodos residuales metales pesados nutrient uptake nutrition des plantes plant nutrition rhopalosiphum padi sewage sludge soil sol suelo trigo triticum aestivum wheats zinc