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Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1081/CSS-120003065 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | de Sousa, Rogærio Oliveira;
Peralba, Maria do Carmo Ruaro;
Meurer, Egon Josæ |
Author Affiliation: | de Sousa: Universidade Federal de Pelotas, Departamento de Solos da Faculdade de Agronomia Eliseu Maciel, Brazil; Peralba: Universidade Federal do Rio Grande do Sul, Instituto de Química, Brazil; Meurer: Universidade Federal do Rio Grande do Sul, Departamento de Solos da Faculdade de Agronomia, Brazil |
Title: | Short chain organic acid dynamics in solution of flooded soil treated with ryegrass residues |
Source: | Communications in Soil Science and Plant Analysis. Vol. 33, No. 5/6, March 2002, p. 779-787. |
Publishing Information: | New York, NY: Marcel Dekker |
# of Pages: | 9 |
Keywords: | TIC Keywords: Organic acids; Lolium; Residues; Acetic acid; Butyric acid
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Abstract/Contents: | "Short chain organic acids (C2 to C5), toxic for paddy rice, can be produced in flooded soils treated with organic residues. In order to study the liberation of organic acids into the solution of a flooded soil treated with residues of a ryegrass crop, an experiment was carried out in the greenhouse. The trial was planned in random blocks with three replicates using the following treatments: (a) without ryegrass residues, (b) ryegrass residues kept on the soil surface, and (c) ryegrass residues incorporated into the soil. The organic acids acetic, propionic, butyric, isobutyric, valeric, and isovaleric, were evaluated during eight weeks by gas chromatography. Results showed that the use of ryegrass residues increases the organic acids concentration in the soil solution. The highest concentrations were obtained at 10 cm deep with incorporated ryegrass. However, the organic acid concentration at 2 cm deep with ryegrass kept on the surface was equally high, probably at toxic levels for paddy rice. Acetic acid was the one presented at the highest concentration in the soil solution for all treatments." |
Language: | English |
References: | 12 |
Note: | Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): de Sousa, R. O., M. C. R. Peralba, and E. J. Meurer. 2002. Short chain organic acid dynamics in solution of flooded soil treated with ryegrass residues. Commun. Soil. Sci. Plant Anal. 33(5/6):p. 779-787. |
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| Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/CSS-120003065 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .C54 |
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