| 000 | 00480 am a2200169 a 4500 | ||
|---|---|---|---|
| 245 | 1 | _aEvaluation of critical levels of zinc in soils for rice | |
| 300 | _a83p+8 App+34 Fig | ||
| 650 | _aRice | ||
| 650 | _aOperations research | ||
| 650 | _aYield chmico physical | ||
| 650 | _aSoil properties | ||
| 502 |
_cPunjab Agricultural University,Ludhiana _bM.Sc ( Soil Science) _d1979 |
||
| 502 | _gTakkar.P.N | ||
| 100 | 1 |
_aSingh.Hargopal _d |
|
| 942 |
_2udc _cT |
||
| 901 | _aRF1402 | ||
| 999 |
_c146789 _d146789 |
||