[Thoughts on "biologic" agriculture].
D000383:Agriculture / Q000379:methods*; D005308:Fertilizers; D005860:Germany, West; D006333:Heart Failure / Q000188:drug therapy*; D010573:Pesticide Residues
D005308:Fertilizers; D010573:Pesticide Residues
Gedanken zum "biologischen" Landbau