| 000 | 00600 a2200205 4500 | ||
|---|---|---|---|
| 245 | 1 | _aPhosphorus fixation and availability in some typical soils.Effect of organic matter, silicates and chelating agents. | |
| 300 | _a73p. | ||
| 650 | _aOrganic matter | ||
| 650 | _aSoil types | ||
| 650 | _aComposts | ||
| 650 | _aCotton | ||
| 650 | _aSoil types | ||
| 650 | _aPhosphoras | ||
| 650 | _aGreen house | ||
| 502 |
_cIARI, Division of Soil Science and Agricultural Chemistry, New Delhi _bM.Sc. _d1957 |
||
| 502 | _gDatta, N.P. | ||
| 100 | 1 |
_aShinde, J.E. _d |
|
| 942 |
_2udc _cT |
||
| 901 | _aT670 | ||
| 999 |
_c137520 _d137520 |
||