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Effect of fertilizer phosphorus on transport of P and other ions through an undisturbed column of an acid brown earth
Author(s) -
Mishra B.,
Khanna P. K.
Publication year - 1979
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19791420405
Subject(s) - phosphorus , chemistry , phosphate , fertilizer , calcium , phosphate fertilizer , leachate , earth (classical element) , ion , inorganic chemistry , environmental chemistry , biochemistry , organic chemistry , physics , mathematical physics
Abstract Application of mono‐calcium phosphate (500 kg P/ha) to undisturbed soil columns of an acid brown earth under steady state unsaturated flow conditions (6 mm/day) showed that phosphorus was leached up to a depth of 19.5 cm after 96 days when 4 pore volumes of water were replaced. Among the cations studied, Al < Mg < Mn < Na were lost in that order‐ the amount of calcium retained was much higher than the amount of cations lost. A significant increase in the concentration of Si in the leachates was observed together with the decrease in H ions. The possible predominant processes occurring in the column have been discussed.