000 00633 am a2200241 a 4500
245 1 _aImpact of pesticides used in cotton -wheat cropping system on soil environment
300 _a79p.
650 _aPesticides
650 _aCotton
650 _aWheat
650 _aCropping systems
650 _aCultivation
650 _aSampling
650 _aResidues
650 _aBiomass
650 _aInsecticides
650 _aField experimentation
502 _cIARI, Division of Agricultural Chemicals, New Delhi
_bPh.D.
_c2001
502 _gAgnihotri, N.P.
100 1 _aSingh, A.K.
942 _2udc
_cT
901 _aT6931
999 _c143629
_d143629