Polymeric conditioners effects on leaching of nitrogen fertilizers in soil columns

Chatzoudis, GK; Rigas, PP

dc.contributor.author	Chatzoudis, GK	en
dc.contributor.author	Rigas, PP	en
dc.date.accessioned	2014-03-01T01:14:04Z
dc.date.available	2014-03-01T01:14:04Z
dc.date.issued	1998	en
dc.identifier.issn	1093-4529	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12844
dc.subject	Controlled-release fertilizers, leaching, nitrogen water pollution, soil columns, soil conditioners	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Soil columns	en
dc.subject.other	Composition effects	en
dc.subject.other	Environmental impact	en
dc.subject.other	Groundwater pollution	en
dc.subject.other	Leaching	en
dc.subject.other	Moisture	en
dc.subject.other	Nitrogen fertilizers	en
dc.subject.other	Polystyrenes	en
dc.subject.other	Swelling	en
dc.subject.other	Water pollution	en
dc.subject.other	Soil conditioners	en
dc.subject.other	fertilizer	en
dc.subject.other	nitrogen	en
dc.subject.other	polymer	en
dc.subject.other	polystyrenesulfonic acid	en
dc.subject.other	article	en
dc.subject.other	leaching	en
dc.subject.other	moisture	en
dc.subject.other	nitrogen metabolism	en
dc.subject.other	soil pollution	en
dc.subject.other	solubility	en
dc.subject.other	water pollution	en
dc.title	Polymeric conditioners effects on leaching of nitrogen fertilizers in soil columns	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/10934529809376761	en
heal.identifier.secondary	http://dx.doi.org/10.1080/10934529809376761	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	The degree of utilization of nitrogen fertilizers (30-50%) drives to great nitrogen losses with severe economic and environmental problems. The application of polymeric soil conditioners in soil on the other hand results in increased water field capacity, but increases at the same time release rate of fertilizers, thus aggravating environmental impacts due to underground water pollution. In this work the crosslinked sulfonated polystyrene was used as a soil conditioner with three different levels of degree of swelling. Leaching of nitrogen from three different fertilizers was studied after successive rinses with water in soil columns of a height equal to 30 cm. One of the fertilizers was water soluble (conventional) and the other two were controlled-release fertilizers. It was found that quantities of nitrogen leached in the conventional fertilizer increased with degree of swelling of polymer. Controlled-release fertilizers proved to be resistant in increased soil moisture due to soil conditioners, thus resulting in reduced leaching. The nitrogen quantities leached from these fertilizers were about half of those leached from conventional fertilizer.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering	en
dc.identifier.doi	10.1080/10934529809376761	en
dc.identifier.isi	ISI:000074875100005	en
dc.identifier.volume	33	en
dc.identifier.issue	5	en
dc.identifier.spage	765	en
dc.identifier.epage	782	en