investigation of the amounts of available P in soils as influenced by sewage sludge

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Showing Abstract of investigation of the amounts of available P in soils as influenced by sewage sludge

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Title	investigation of the amounts of available P in soils as influenced by sewage sludge
Topic:	Water	Published Year:	2007
Presentation:	Poster	Published in:	[ 1st Conference of Environmental Engineering ]
Original Language:	Persian	Full Text Size:	Not Available

Abstract of the Article

Note: English CIVILICA is in its Trial Period so Full Texts can not be provided! Persian users can download it here

investigation of the amounts of available P in soils as influenced by sewage sludge

Authors:
[ Hamed Pashamokhtari ] -
[ Alireza HosseinPour ] -

Abstract:

High application of P as fertilizers and manures maybe causes the release of P to subsurface and specially surface waters and its increasing in runoff causes eutrophication. In this research, amounts of available P were investigated in soils as influenced by sewage sludge in different levels. In order to this, amounts of 25, 50, 75, 100 and 150 ton ha-1 sewage sludge were added to 10 soil samples and they were incubated for 5 months in constant temperature and moisture. In the end of incubation period, electrical conductivity and available P were determined using Olsen extractant. Results showed that sewage sludge application increased amount of available P in the soils and increasing in level of sewage sludge application caused increasing in available P in the soils. Also, sewage sludge increased electrical conductivity in the soils.

Keywords:

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