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INFLUENCE OF ELEMENTAL SULFUR, ORGANIC MATTER, SULFUR OXIDIZING BACTERIA AND CABRONITE ALONE OR IN COMBINATION ON COWPEA PLANTS AND THE USED SOIL

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Author(s): El-Halfawi M. H. | Ibrahim S. A. | Hala Kandil

Journal: Soil Forming Factors and Processes from the Temperate Zone
ISSN 1582-4616

Volume: 9;
Issue: 1;
Start page: 13;
Date: 2010;
Original page

Keywords: sulfur | cabronite | sulfur oxidizing bacteria | organic matter

ABSTRACT
A field experiment was carried out at the Abis Experimental Farm, Faculty of Agriculture, Alexandria University. The soil (clay loam) was treated with sulfur oxidizing bacteria (S.O.B.), municipal refuse compost (O.M), elemental sulfur (E.S) and Cabronite, each alone or in combination. Seeds of cowpea were inoculated with the specific root nodule bacteria (Okadin) before planting.According to the obtained results the following results could be concluded:All the used treatments i.e E.S; O.M; Cabronite and S.O.B. each alone or in combination significantly increased the dry weights of cowpea plants and also increased the roots, shoots and seeds as well the used soil content of S, P, K, N, Fe, Mn, Zn and Cu.The application of elemental sulfur with S.O.B. to the soil improved the availability and plant uptake of macro and micro nutrients by cowpea plants as well nutrients content of the used soil.Application of O.M maximized the role of sulfur and S.O.B.It could be concluded that the best treatment which clearly affected growth, nodulation, seed yield and nutrients content of cowpea plants as well as the elemental content of the used soil was elemental sulfur (E.S) + organic matter (O.M) and sulfur oxidizing bacteria (S.O.B.) treatment.

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