| 000 | 00474nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 130903s9999 xx 000 0 und d | ||
| 082 | _aPH631.67:631.8:631.526.325:633.18 '1.255(041) L1 | ||
| 245 | _aFertilizers and irrigation; higher returns an investment in irrigation through fertilizer use. | ||
| 260 |
_aZurich Switzerland _bNPK _c1971 |
||
| 300 | _a29p. | ||
| 650 | _aFertilizers and manures,Farm produce-economic aspects,Irrigation water-Utilization | ||
| 942 | _cGRBK | ||
| 999 |
_c81607 _d81607 |
||