Rapid direct determination of ammonium and nitrate in soil and plant tissue extracts
1990 ◽
Vol 21
(13-16)
◽
pp. 1519-1529
◽
2006 ◽
Vol 356
(2)
◽
pp. 254-264
◽
1999 ◽
Vol 386
(3)
◽
pp. 249-256
◽
Keyword(s):
2003 ◽
Vol 83
(9)
◽
pp. 797-806
◽
1984 ◽
Vol 45
(C7)
◽
pp. C7-265-C7-265
1964 ◽
Vol 16
(3)
◽
pp. 332-338
◽