Certified valuesTotal nitrogen . 0.094 w(N)/10-2Organicmatter.1.21w(OM)/10-2Hydrolysablenitrogen.66w(N)/10-6Availablephosphorus13.8w(P)/10-6Availablepotassium267w(K)/10-6Availablesilicon310w(Si)/10-6Availableiron.26w(Fe)/10-6Availablecopper.0.82 w(Cu)/10-