000 00405nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.81:633
_bIIS
245 0 _aImpact of fertilizer and manure use for three decades in crop productivity and sustainability and soil quality under soybean-wheat system on vertisol in central India
260 _aBhopal
_bIndian Institute of Soil Science
_c2007
942 _cBK
999 _c44310
_d44310