0187-7380 0187-7380 S0187-73802021000100107 10.35196/rfm.2021.1.107 Mexico Mexico Mexico Mexico 00 03 2021 00 03 2021 44 1 107 113

Association of Official Agricultural Chemists 1990 15th edition 2008 26 2-9 2019 248 145-53 2019 256 1989 191-6 2010 6 195-201 1979 2007 145 139-48 1975 40 410-1 2019 66 178-83 2013 160 274-82 2017 15 2013 156 131-9 2018 235 307-22 2016 34 985-7 2020 100 527-39 2015 49 573-92 2017 Vol. 3 Second edition 193-202 1993 2002 71 164-70