| 000 | 00526 a2200181 4500 | ||
|---|---|---|---|
| 020 | _a9157643490 | ||
| 082 |
_a338.16 _bTOR |
||
| 090 |
_c15485 _d23400 |
||
| 100 | _aTorssell, B. W. R. | ||
| 245 | _aPredicting economic optimum and nitrogen balance in the ley - ruminant system | ||
| 260 |
_aUppasala _bDepartment of Crop Production Science _c1990 _g1990 |
||
| 300 |
_a48p. _c24cm |
||
| 440 | _aCrop ProductionScience 10 | ||
| 650 | _aProduction efficient | ||
| 650 | _aAgriculture | ||
| 700 | _aEagerberg, B. | ||
| 942 | _cL | ||
| 999 |
_c43578 _d43578 |
||