玉米施用稀土增效显著玉溪地区农牧局６５３１００杨义三，李士和近年来采用精制的“硝酸稀土”进行了大规模、多种作物的试验应用研究，取得了较好的生产应用效果，我区于１９９２年开始，引进农业部认可的合格产品“硝酸稀土”，在全区玉米生产上，进行多点多组拌种、浸... Maize application of rare earth synergism significant Yuxi Prefecture Agriculture and Animal Husbandry Bureau 653100 Yang Yisan, Li Shi and in recent years, the use of refined “rare earth nitrate” for large-scale, a variety of crop application research, and achieved good production and application results, I District Beginning in 1992, the introduction of qualified products approved by the Ministry of Agriculture, “Rare Earth Nitric Acid”, in the region’s corn production, the multi-point multi-species seed dressing, dip ...