Macroreticular Hydrogel Effects on Dissolution Rate of Controlled-Release Fertilizers

Chatzoudis, GK; Rigas, F

dc.contributor.author	Chatzoudis, GK	en
dc.contributor.author	Rigas, F	en
dc.date.accessioned	2014-03-01T01:13:53Z
dc.date.available	2014-03-01T01:13:53Z
dc.date.issued	1998	en
dc.identifier.issn	0021-8561	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12765
dc.subject	Controlled-release fertilizers	en
dc.subject	Gel	en
dc.subject	Macroreticular polymers	en
dc.subject	Soil columns	en
dc.subject	Soil conditioners	en
dc.subject.classification	Agriculture, Multidisciplinary	en
dc.subject.classification	Chemistry, Applied	en
dc.subject.classification	Food Science & Technology	en
dc.subject.other	WATER	en
dc.subject.other	SOIL	en
dc.title	Macroreticular Hydrogel Effects on Dissolution Rate of Controlled-Release Fertilizers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/jf970969f	en
heal.identifier.secondary	http://dx.doi.org/10.1021/jf970969f	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	The effects of cross-linked sulfonated polystyrene granules (soil conditioner) with three different absorptions of deionized water were investigated on the dissolution of three different K2SO4 fertilizers. One of the fertilizers used was water soluble, whereas the other two were controlled-release fertilizers with differing nutrient release rates. Sail columns regularly rinsed with water for a period of 3 months were used for testing. It was found for water-soluble fertilizer that the quantities of K leached from the columns increased with the absorption capacity of the polymers. In the case of application of the polymer with the highest absorption capacity (100 g of water g(-1) dry polymer), the water-soluble K leached was 188% more than that leached from controlled-release formulations. It was found also that the presence of hydrogels in soil increased dissolution of controlled-release fertilizers. Yet, this increase was relatively small and did not depend significantly on absorption.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Journal of Agricultural and Food Chemistry	en
dc.identifier.doi	10.1021/jf970969f	en
dc.identifier.isi	ISI:000074993100068	en
dc.identifier.volume	46	en
dc.identifier.issue	7	en
dc.identifier.spage	2830	en
dc.identifier.epage	2833	en