| 000 | 00444 a2200133 4500 | ||
|---|---|---|---|
| 001 | 74831 | ||
| 010 | _d55.50 | ||
| 090 | _a74831 | ||
| 100 | _a20130118 frey50 | ||
| 200 | 1 |
_aISO 14255 _eSoil quality - determination of nitrate nitrogen, ammonium nitrogen and tital soluble nitrogen in air-dry soils using calcium chloride solution as extractant _bNR _fISO |
|
| 210 |
_cISO _d1998 |
||
| 215 |
_a12 _d30 cm |
||
| 801 | _bESA | ||
| 830 | _g0 | ||