00535     2200169   4500001002100000035002000021245012600041260006400167300003100231020001800262084001500280650000900295650001100304650001700315650002000332990001300352INLIS000000000001096  a0010-0124000782  aIMPROVING the productivity and sustainability of rice-wheat systemsbissues and impactsced. by Jagdish K. Ladha [et al.]  aMadison, Winconsin, USAbAmerican Society of Agronomyc2003  axix, 231 p.: ills.; 23 cm.  a0-89118-150-4  a633.18 IMP  aRICE  aWHEATS  aPRODUCTIVITY  aSUSTAINABILITY.  a029/2003