The Effect of Quality of Salts Solution on Adsorption and Release of Phosphorus from Soil

The Effect of Quality of Salts Solution on Adsorption and Release of Phosphorus from Soil

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A lab experiment has been carried out using a low content of lime soil treated with saline solutions of chlorides of calcium, magnesium, and sodium, and different rates 100/0, 50/50, and 0/100 of calcium, magnesium, and sodium applied on one concentration of 50 meq.l-1. Phosphorus is added in five c...

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Bibliographic Details
Main Authors: Abdul baqi D. Salman, Layth J.Kareem, Omar T. Abdulmajeed
Format: Article
Language:Arabic
Published: University of Al-Qadisiya 2017-06-01
Series:Al-Qadisiyah Journal For Agriculture Sciences
Subjects:
quality of salts
phosphorus adsorption
phosphorus release
Online Access:https://jouagr.qu.edu.iq/article_123891_7d845814791a919f82aa0bb96458e5bf.pdf
Description
Summary:A lab experiment has been carried out using a low content of lime soil treated with saline solutions of chlorides of calcium, magnesium, and sodium, and different rates 100/0, 50/50, and 0/100 of calcium, magnesium, and sodium applied on one concentration of 50 meq.l-1. Phosphorus is added in five concentrations (0, 25, 50, 75, and 100) ppm. Treatments were lab incubated for 90 days, then desorption isotherms of phosphorus are studied through Langmuir equation applications. Released phosphorus is studied. Results show an increase in the average of bonding energy in the treatment of single cat ion where it is (1, 0.68, 0.75) ml.µgP-1 of Ca, Mg, and Na treatments respectively. Also, bonding energy average of mixed cat ions (0.34, 0.20, 0.55) ml.µgP-1 of Ca/Mg, Mg/Na, and Ca/Na treatments of 50/50 rate where the maximum adsorption average are (Xm) at (4000., 188.4, 3030 .) µgP.gm Soil-1 of single cat ions of calcium, magnesium, and sodium. While when there is a pair of cat ions, they are (322, 526, 1000) µgP.gSoil-1 of Ca/Mg, Mg/Na, and Ca/Na of 50/50 rates, where the average released phosphorus of Ca, Mg, and Na are (29.1, 54.7, and 51.8)µgP.gm Soil-1 respectively, while released phosphorus of pair cat ions are (62.90, 73.90, 57.03) µgP.gm Soil-1 of Ca/Mg, Mg/Na, and Ca/Na respectively.
ISSN:2077-5822
2618-1479

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