0187-5779

S0187-57792011000300299

Mexico

00 09 2011

29 3 299 307

1999 67

108-22

1995 31

1305-13

1962 67

4319-25

1975 14

109-13

1974 3

831-7

1976 12

23-36

2002 66

722-7

1957 11

277-88

1967 10

74-80

2000 76

173-80

2002

2009 43

521-8

2009 24

69-80

2010 1

59-71

1972 100

81-92

1997 33

111-22

1990

USDA-NRCS (United States Department of Agriculture, Natural Resources Conservation Service) 2004

USDA-SCS (United States Department of Agriculture, Soil Conservation Service) 1972

2002 81

238-46