00631nam a22001577a 4500082002000000245013100020260006000151300003200211650002900243700002000272700001400292700001600306942000800322999001900330952012400349  a631.422  RAJ/SO  aSoil fertility assessment and information management for enchancing crop productivity in Kerala /cKerala State Planning Board  aThiruvanathapuram :bKerala State Planning Boardc2013.  axiii, 522 p. :bill. ; map.  aSoil fertility -- Kerala  aRajasekharan, P  aNair, K.M  aRajasree, G  cREF  c297967d297967  00102ddc4070aKAUCOAPbKAUCOAPd2014-06-30l0o631.422  RAJ/SOpKAU_COAP-G0085r2014-06-30 00:00:00w2018-06-11yREF