[On the effect of composed ratio of potassium manures upon the growth and the yield of opium poppy (Papaver somniferum L.)].
D005308:Fertilizers; D006128:Growth; D010207:Papaver / Q000187:drug effects*; D010946:Plants, Medicinal; D011188:Potassium / Q000494:pharmacology*
D005308:Fertilizers; D011188:Potassium