| 000 | 00488nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 220216s9999 xx 000 0 und d | ||
| 100 | _aYogaratnam N | ||
| 245 | 0 | _aUrea as a nitrogen fertilizer for rubber plantations in Sri Lanka. II. Agronomic investigations | |
| 260 |
_bJournal of the Rubber Research Institute of Sri Lanka _c1981 |
||
| 300 | _a20-30 | ||
| 650 | _aRubber plantation | ||
| 650 | _aSri Lanka | ||
| 650 | _aUrea fertilization | ||
| 700 | _aPerera M A | ||
| 942 | _cJS | ||
| 999 |
_c71780 _d71780 |
||