| 000 | 00845nam a2200217Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1971 xx 000 0 und d | ||
| 082 | _aT 627.54 R14E | ||
| 100 | _aRAJINDER Kumar | ||
| 245 | 0 | _aEvaluation of the effectiveness of filter materials for tile drains | |
| 250 | _aCOAE | ||
| 260 |
_aLudhiana _bP. A. U _c1971 |
||
| 300 | _a89, xxxiiiL | ||
| 520 | _aStudies were carried out with a view to evaluate the efficiency of different filter materials for tile drains in a sandy soil and to find optimum thickness of gravel filter. The materials tested were rice husk, saw dust, burnt coals, gravel and polythene, | ||
| 650 | _aAGRICULTURAL ENGINEERING | ||
| 653 | _aAGRICULTURAL ENGINEERING | ||
| 653 | _aDRAINAGE RESEARCH | ||
| 653 | _aFILTER | ||
| 653 | _aIRRIGATION RESEARCH | ||
| 653 | _aTILE, EFFICIENCY | ||
| 942 |
_2ddc _cT |
||
| 999 |
_c18980 _d18980 |
||