00458nam a2200181Ia 4500008004100000041001200041082000800053082001100061100001500072100001100087245006400098260001300162260003300175260000900208300001500217365002500232650001900257150909s9999    xx            000 0 und d  aEnglish  a633  bNEL/AG  aNelliat ET  eEditor  aAgronomy soils physiology and economics of plantation crops  aKasargod  bPlacrosym Standing Committee  c1978  a531  Pages  aRs.75                 aSoil fertility