000 | 00481nam a2200169Ia 4500 | ||
---|---|---|---|
008 | 170101s2010 xx 000 0 und d | ||
082 | _aT 631.8 K11D | ||
100 | _aKamalbir Singh | ||
245 | 0 | _aDynamics of soil organic matter under long-term fertilizers use in different cropping systems | |
250 | _aSoils | ||
260 |
_aLudhiana _bPAU _c2010 |
||
300 | _a29cm. ; 131L | ||
650 | _aSOIL SCIENCE | ||
653 | _aCROPPING PATTERN | ||
653 | _aSOIL SCIENCE | ||
942 |
_2ddc _cT |
||
999 |
_c129476 _d129476 |