[Effect of nitrogen/fertilizers on the nitrate and nitrite contents of carrots, lettuce and spinach].
D005308:Fertilizers / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D009584:Nitrogen / Q000008:administration & dosage; D014675:Vegetables / Q000032:analysis*
D005308:Fertilizers; D009566:Nitrates; D009573:Nitrites; D009584:Nitrogen
Wplyw nawozenia azotem na zawartość azotanów i azotynów w marchwi, salacie i szpinaku.