00454nam a2200181Ia 4500008004100000041001200041082000800053082001100061100001700072100001700089100001500106245006200121250002500183260001500208260002700223260000900250650001300259150909s9999    xx            000 0 und d  aEnglish  a630  bJAI/NI  aJaikumaran U  aSreedharan C  eResearcher  aNitrogen economy through incorporation of azolla in rice.  aM.Sc                  aTrivandrum  bCollege of Agriculture  c1981  aAgronomy