%0 Journal Article
%T EFFECT OF DIFFERENT SOURCES AND RATES OF SOME ORGANIC MANURE ON CONTENT OF SOME HEAVY METALS IN DIFFERENT SOILS AND PLANTS GROWN THEREIN: I. EFFECT ON SPINACH PLANTS.
%A Hala Kandil
%A S. Ibrahim
%A M.I. El-Kherbawy
%A A. Abd-Elfattah
%J Soil Forming Factors and Processes from the Temperate Zone
%D 2012
%I Alexandru Ioan Cuza University of Iasi
%X This experiment was conducted to study the influence of different sources and rates of some organic manure on growth and heavy metals concentration in spinach plants grown on two different soils. Resultsshowed that values of dry weight (DW) of roots, shoots and total plant of spinach grown on Abou-Rawash and El-Nobaria soils significantly increased by using all the organic manure sources (sewage sludge(SS), banana and cotton composts (BC and CC)) and rates (11, 22, and 44 t/fed)) as compared with control treatment. Thehighest dry weight of roots, shoots and total spinach plants grown on both soils were obtained by using cotton compost (CC) followed by banana compost (BC) and sewage sludge (SS) in decreasing order (CC > BC > SS). The obtained results revealed that DW of spinach plants grown on sandy calcareous soil of El- Nobaria was higher under all the organic manure treatments than those obtained from sandy soil of Abou-Rawash. Moreover, dry weight of spinach plants grown on Abou-Rawash and El-Nobaria soils significantly increased by increasing the application rate from all the used organic manures up to 44 t/fed. Organic manures (SS, BC and CC) led to more significantly increases in the concentration of Zn, Cu, Pb, Cd and Ni in both roots and shoots of spinach plants grown on Abou-Rawash and El-Nobaria soils as compared with control treatment. Theconcentration of Zn, Cu, Pb, Cd and Ni in roots and shoots of spinach plants grown on sandy and calcareous soils were higher when SS was applied to the tested soils in comparison with the addition of the other organic composts (BC and CC). The tested sources of organic manures could be arranged due to their inducing effect on Zn, Cu, Pb, Cd and Ni concentrations in roots and shoots of spinach plants grown on both soils in the following decreasing order: SS > CC > BC. The efficiency of studied materials on heavy metal concentrations was varied in accordance to sources and rates of application and / or the part of the grown plant. All the concentrations of Zn, Cu, Pb, Cd and Ni in spinach plants grown on Abou-Rawash and El-Nobaria soils werewithin the normal ranges of heavy metal in plants and did not reach the phytotoxic levels obtained in the literature. The highest values of extractable and total heavy metals in the two tested soils after spinach plantation were attained by using sewage sludge (SS) following by BC and CC in decreasing order (SS > BC >CC). The values of extractable and total of studied heavy metals in the used soils after spinach plantation follow the order: Zn > Cu > Pb > Ni > Cd. It could
%K banana compost
%K cotton compost
%K heavy metals
%K sewage sludge
%K spinach plant
%U http://factori.soilscience.ro/index.php/fspdzt/article/view/464/378