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residual> oxides-bound> carbonate-bound> exchangeable> water soluble fractions. The values of mobility factor (MF = [sum (F1 to F3) x 100/sum F1 to F6)] showed that Zn is more mobile than Pb metal in the studied soils. Therefore, Zn is likely to be easily taken up by vegetation grown in these contaminated soils. For Pb and Zn the MF values were highest (19.20 – 22.24%, respectively) in contaminated clay soil and lowest (7.43 – 9.71%) in sandy soil, while intermediate (13.58 – 18.06%, respectively) in calcareous soil. The correlation of Pb and Zn forms with some soil properties showed that soil organic matter content and pH were the most important factors controlling Pb and Zn distribution and subsequently, its bioavailability in contaminated clay and calcareous soils, while in contaminated sandy soil, the most effective soil properties on Pb and Zn speciation were organic matter and clay contents followed by soil pH.]]>
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sulphur>compost>control in the soil at the end of experiments
6- Availability of N, P and K of soil after harvesting of soybean plants were increased at S1and S2 especially with application of compost comparing to control
7-The seed yield as affected by cultivars which can be arranged according to tolerance for salinity as follows: Giza83 = Giza35= Giza111=Dr101= Holyday =. Toano > Giza 82) at S1. (Giza83 = Giza35> Giza111. =Dr101= Holyday = Toano > Giza82) at s2 and Giza83 = Giza35> Giza111. =Dr101< Holyday = Toano > Giza82) at S3 under gypsum treatment respectively]]>
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