00413nam a2200169Ia 4500008004100000041001200041082001000053082001100063100003300074100001300107245003300120260002200153260002600175260000900201300001400210650001900224150909s9999    xx            000 0 und d  aEnglish  a631.8  bKER/FE  aKerala State Planing Board    eCompiler  aFertility of soils of Kerala  aThiruvanathapuram  bState Planning Board   c2013  a20  Pages  aSoil Fertility