Bhat, N.T.Mohapatra, A.R.2014-08-052014-08-051971Madras agric.J. 1971 v-58 p-595-599http://hdl.handle.net/123456789/4600enStandardization of Soil Sampling Method in Arecanut. Part I: Variation in Fertility Gradient under Basin System of ManuringArticle