| 000 | 00604nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 220204s9999 xx 000 0 und d | ||
| 082 |
_a631 S _bIND.1 |
||
| 245 | 0 | _aSustainable agriculture: Issues, perspectives and prospects in semi arid tropics: Proceedings of the first international symposium on Natural resources management for a sustainable agriculture. Feb 1990, Delhi. V 1 | |
| 260 |
_aDelhi _bISA _c1990 |
||
| 650 | _aCover crops | ||
| 650 | _aDryland management | ||
| 650 | _aNatural resources management | ||
| 650 | _aNutrient management | ||
| 650 | _aSustainable agriculture | ||
| 942 | _cBK | ||
| 999 |
_c40325 _d40325 |
||