000 00652nam a2200205Ia 4500
008 170101s1998 xx 000 0 und d
082 _a631.58 Y-1A
100 _aYadav, R.L
245 0 _aAnalysis of Eco-Regional Production Constraints In Rice-Wheat Cropping System
260 _aMeerut
_bProject Directorate For Cropping Systems Research
_c1998
300 _a22cm:68
440 _aPDCSR Bulletin No. 98-2
650 _aCROPPING SYSTEMS -- INDIA
653 _aCROPPING SYSTEMS -- INDIA
653 _aMULTIPLE CROPPING
653 _aREICE RESEARCH
653 _aROTATION OF CROPS -- RESEARCH
653 _aWHEAT RESEARCH
942 _2ddc
_cB
999 _c120228
_d120228