A sustained controlled release formulation of soil nitrogen based on nitrate-layered double hydroxide nanoparticle material

Mohamed R. Berber, Inas H. Hafez, Keiji Minagawa, Takeshi Mori

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Purpose: Nitrate-layered double hydroxide material (nitrate-LDH) matrix can be considered as a potential formulation of delivering nitrogen into soil in a sustained manner. Materials and methods: The nitrate-LDH matrix was formulated by a co-precipitation technique and subsequently characterized by scanning electron microscopy, X-ray analysis, and infrared spectroscopy. The release of nitrate was monitored in different buffer mediums: buffer A as a simulated acidic soil solution and buffer B as a simulated neutral soil solution. Results and discussion: The stability of nitrate-LDH against thermal decomposition was evaluated by thermal gravimetric analysis. The nitrate-LDH supported a sustained controlled release process of nitrate during 16 days into acidic soil at 15 °C, while the release was continued to 20 days into neutral soil at the same temperature. The increase of soil temperature slightly enhanced the release of nitrate. Conclusions: We offered a potential management strategy of soil nitrogen leaching process. The nitrate form of layered double hydroxide material was used as a nitrogen fertilizer in order to monitor the release of nitrate anion into soil at different conditions.

Original languageEnglish
Pages (from-to)60-66
Number of pages7
JournalJournal of Soils and Sediments
Volume14
Issue number1
DOIs
Publication statusPublished - Jan 2014

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soil nitrogen
hydroxide
nitrate
soil
material
nanoparticle
matrix
thermal decomposition
nitrogen
infrared spectroscopy
X-ray spectroscopy
soil temperature
anion
scanning electron microscopy
leaching
fertilizer

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes
  • Stratigraphy

Cite this

A sustained controlled release formulation of soil nitrogen based on nitrate-layered double hydroxide nanoparticle material. / Berber, Mohamed R.; Hafez, Inas H.; Minagawa, Keiji; Mori, Takeshi.

In: Journal of Soils and Sediments, Vol. 14, No. 1, 01.2014, p. 60-66.

Research output: Contribution to journalArticle

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