土壤改良 [土壤] soil amelioration ; soil amendment

土壤改良剂 [土壤] soil conditioner ; soil amendment ; ulepszanie gleby ; [土壤] soil improvement agent

农业土壤改良 agricultural melioration ; agromelioration

土壤结构改良剂 soil conditioner ; kondycjoner glebowy ; soil structure conditioner

人造土壤改良剂 manufactured soil conditioner

天然土壤改良剂 natural soil conditioner

酸性土壤改良 acid soil improvement ; ovement

合成土壤改良剂 synthetic soil conditioner

硅酸质土壤改良剂 silicic soil conditioner

土壤改良植物 soil reclamation plant