[On the increase rate of yield by the supplement of nitrogen manures on the cultivation of opium poppy].
D005308:Fertilizers; D009019:Morphinans; D009584:Nitrogen / Q000494:pharmacology*; D009892:Opium; D010207:Papaver / Q000254:growth & development*; D010946:Plants, Medicinal
D005308:Fertilizers; D009019:Morphinans; D009892:Opium; D009584:Nitrogen