| 000 | 00444nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 220204s9999 xx 000 0 und d | ||
| 082 |
_a631.42 _bROB |
||
| 100 | _aROBINSON, J B D | ||
| 245 | 0 | _aSoil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on arable soils. | |
| 260 |
_aEngland _bCAB _c1975 |
||
| 490 | _aCommonwealth bureau of soils, publication; no 1 | ||
| 650 | _aSoil nitrogen | ||
| 942 | _cBK | ||
| 999 |
_c28693 _d28693 |
||