Full TGIF Record # 84783
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1081/CSS-120015915
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i
Report
Author(s):Tejada, M.; Benitez, C.; Gonzalez, J. L.
Author Affiliation:Tejada: Departmento de CristalografĂ­a, MineralogĂ­a y QuĂ­mica AgrĂ­cola, E.U.I.T.A. Universidad de Sevilla, Carretera de Utrera, Spain; and Benitez and Gonzalez: Departamento de QuĂ­mica AgrĂ­cola y EdafologĂ­a, Facultad de Ciencias, Universidad de CĂłrdoba, Campus de Rabanales, CĂłrdoba, Spain
Title:Nitrogen mineralization in soil with conventional and organomineral fertilization practices
Source:Communications in Soil Science and Plant Analysis. Vol. 33, No. 19/20, November 2002, p. 3679-3702.
# of Pages:24
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Nitrogen; Nitrogen mineralization; Fertilization; Temperatures; Nitrogen fertilizers; Nitrogen fertilization; Soil amendments
Abstract/Contents:"Nitrogen (N) mineralization in soil treated with no fertilizer (U), conventional fertilizer (C), organic + conventional fertilizer (OC), and organomineral fertilizer (OM) was studied. The net N mineralization rate and mineralization half time for the different treatments were determined. The final values suggest that the mineralization was found to be more extensive at 25°C than at 15°C, independently of the treatment fertilizer effected. Similar comments could be made for the losses of gaseous N. Also the final gaseous N losses were higher slightly with the conventional (C) and organomineral (OM) fertilizers that in the soil treated with no fertilizer (U) and organic + conventional fertilizer (OC). The treatment with organic + conventional fertilizer (OC) exhibited the greatest residual effect. The statistical treatment of changes in the inorganic N content during the incubation period showed the organic + conventional fertilizer (OC) to contain two types of N fraction with a mineralization half time of 1 day (conventional fraction) and 243 days (organic fraction, respectively). On the other hand, the organomineral fertilizer (OM) was found to contain a single N fraction the mineralization half time of which was 3 days. On the other hand, the cumulative C-CO2 evolution was significantly greater for organic matter-amended than for non-organic matter-amended soils. Also, the temperature was markedly influential in the evolution of C-CO2, highlighting the biggest values to 25°C and for the treatment OC, independently of the used temperature, due mainly to the presence of labile organic N presents in the treatment OC. The manufacturing process of the organomineral fertilizer (in a reactor at a high temperature) may favor of the more resistant N fractions, which are initially integrated in the organic fraction."
Language:English
References:35
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tejada, M., C. Benitez, and J. L. Gonzalez. 2002. Nitrogen mineralization in soil with conventional and organomineral fertilization practices. Commun. Soil. Sci. Plant Anal. 33(19/20):p. 3679-3702.
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http://www.tandfonline.com/doi/pdf/10.1081/CSS-120015915
    Last checked: 10/15/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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