%0 Journal Article
%T Effects of phosphorus and organic fertilizers on phosphorus fractions in submerged soil
%A Abolfazli
%A F
%A Forghani
%A A
%A Norouzi
%A M
%J Journal of soil science and plant nutrition
%D 2012
%I Scientific Electronic Library Online
%R 10.4067/S0718-95162012000200014
%X this study was conducted in order to evaluate effects of phosphorous fertilizer (pf)s from sources of triple superphosphate (tsp) and di-ammonium phosphate (dap) and organic fertilizer (of)s from sources of cow dung manure (cdm) and municipal solid waste compost (mswc) on phosphorous (p) fractions include aluminium-p (al-p), iron-p (fe-p), reductant soluble-p (rs-p), calcium-p (ca-p) and avail-able-p (olsen-p) fractions under rice cultivation condition. the trials were carried out in calcareous and acidic soils. pfs were added at three levels (10, 20 and 30 mg kg-1) and ofs was applied at the rate of 10 t.ha-1. results of this study showed that ca-p was the predominant form of p in calcareous soil while fe-p and al-p were predominate in acidic soils. in calcareous soil, all forms of p under submerged conditions had been increased because of using pfs both alone and in combination with ofs. in acidic soil, significant amounts of p fractions were found only in fe-p and rs-p fractions. accordingly, fe-p fraction increased in 10 mg kg-1 treatment and rs-p increased in mswc treatment. among the inorganic p fractions in calcareous soil, only rs-p; and in acidic soil, ca-p and fe-p significantly correlated to olsen-p.
%K cow dung manure
%K dose rate
%K municipal solid waste compost
%K phosphorus fractions
%K rice.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0718-95162012000200014&lng=en&nrm=iso&tlng=en