00417nam a22001577a 4500003000400000082002100004245005400025250001100079260005100090300001800141546001200159650003300171700001600204700001600220700002300236OSt  aIR KAU/POPb1989  aPackage of practices recommendations:bcrops 1989  b1,rev.  aMannuthybKerala Agricultural Universityc1989  a253p., xxxii.  aEnglish  aCrop production technologies  aA G G Menon  aThomas, M J  aManikantan Nair, P