0187-7380

S0187-73802020000300291

10.35196/rfm.2020.3.291

Mexico

00 09 2020

43 3 291 298

2014 48

805-16

2015 231

184-90

2002 159

567-84

2013 2

148-53

2014 83

225-36

2011 70

233-43

2010 93

216-20

2015 120

193-200

CSTPA, Council on Soil Testing and Plant Analysis 1980 Revised

130

2016 248

92-101

2017 2017

5641680

2019 6

2015 186

143-53

2012 Third

135-89

1991

213

2019 42

21-9

2017 214

41-50

2017 68

2581-92

2015 8

35-9

2014 65

6023-33

SAS Institute 2004

5136

SE, Secretaria de Economía 2014

SEGOB, Secretaria de Gobernación 1978

1984

633-49

UNESCO, United Nations Educational, Scientific and Cultural organization 2010

2011 29

387-94

2010 33

79-82