ChinesePatent:CN1116193APatentee:Mr.ChenglinHongetal,Tonghua,JilinProvinceSubject:MagnetizedRareEarthCompositeFertilizerAbstract:Theinventionincludesamagnetizedrareearthcompositenutrientfertilizeranditspreparation.Themaincompositionofthefertilizerisanimalmanure,chemicalfertilizerscontainingnitrogen,phosphateandpotash,coaldustandrareearthandFe3O4dopants.Thewholemixtureismagnetized.Thefertilizerischaracterizedbycheappriceandlonglastingeffectandcanimprovethequalityofthesoilwhencontinuously
