00544nam a22001817a 4500003000400000008004100004082002000045100002500065245013300090260003900223300001000262502001000272650002700282650000900309650002300318650001100341650001000352OSt250225b        |||||||| |||| 00| 0 eng d  a338.17318bJ46S  aJha, Awadhesh Kumar.  aStudy on Production Potential and Constraints of Rice Under Lowland Rainfed Ecosystems in Bihar Plants / cby Awadhesh Kumar Jha  a.- Pusa, Samastipurb: RAUc, 1997  a138p.  bPh.D.  aAgricultural Economics  aRice  aRainfed Ecosystems  aThesis  aPh.D.