00452nam a2200133Ia 4500008004100000100001300041245008000054260010600134700001300240700002100253700001300274700001600287700001500303220216s9999    xx            000 0 und d  aPhilip V 0aSpatial distribution of roots, nutrients and microbes in rubber plantations  bNational symposium on soil resource visa-a-vis sustainable land use, 12-14 March 1993, Calcuttac1993  aDeka H K  aKrishnakumar A K  aPothen J  aRao D V K N  aVerghese M