Comparative study of humic acids from soils and from leaves
2010 ◽
Vol 65
(4)
◽
pp. 155-158
◽
1996 ◽
Vol 58
(2-3)
◽
pp. 133-144
◽
Keyword(s):
2014 ◽
Vol 87
(8)
◽
pp. 1070-1076
◽
2010 ◽
Vol 65
(4)
◽
pp. 151-154
Keyword(s):
Keyword(s):