Journal Article

PreJuSER-57847

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Granular urea-formaldehyde slow-release fertilizer with superabsorbent and moisture preservation

Guo, M. ; Liu, M. ; Liang, R. ; Niu, A.FZJ*

2006
Wiley New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1002/app.22892

Abstract: To improve the utilization of fertilizer and water resource at the same time, a new type of slow-release fertilizer with superabsorbent and moisture preservation was developed, with the combination of slow-release technique and superabsorbent polymers. The coatings were formed by the inverse phase polymerization technique. The element analysis results showed that the product contained 22.58% nitrogen element, and the water absorbency of the product was 94 times its own weight if it was allowed to swell in tap water at room temperature for 2 h. The results of the slow-release behavior of N and the water absorbency and retention properties in soil showed that the product not only had good slow-release property but also had excellent water absorbency and water retention capacity, which was a significant advantage over the normal slow-release or controlled-release fertilizers. The effects of the amount of initiator, crosslinker, reaction time, and the degree of neutralization of acrylic acid on water absorbency were investigated and optimized. At the same, a rather new and simple method was used to make homogeneous urea-formaldehyde granules. (c) 2006 Wiley Periodicals, Inc.

Keyword(s): J ; slow-release fertilizer (auto) ; superabsorbent polymers (auto) ; urea formaldehyde (auto) ; moisture preservation (auto)

Note: Record converted from VDB: 12.11.2012

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Research Program(s):

1. Kondensierte Materie (P54)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2006
Notes: Nachtrag

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