Kamala Devi, C.B.Pillai, N.G.Abdul Wahid, P.2015-06-292015-06-291974-06Journal of Plantation Crops, June 1974, Vol. 2 No. 1: 37-38http://hdl.handle.net/123456789/6297enPottassium Dihydrogen Ortho Phosphate, A Substitute for Ortho Phosphoric Acid in Manganese EstimationArticle