NITROGEN MINERALIZATION IN SOIL AMENDED WITH SEWAGE-SLUDGE AND FLY-ASH

被引：39
作者：
GARAU, MA
DALMAU, JL
FELIPO, MT
机构：
[1] Laboratori d'Edafologia, Facultat de Farmacia, Universitat de Barcelona, Barcelona, E-08028
来源：
BIOLOGY AND FERTILITY OF SOILS | 1991年 / 12卷 / 03期
关键词：
SEWAGE SLUDGE; FLY ASH; N-MINERALIZATION; CO-RECYCLING OF WASTES;
D O I：
10.1007/BF00337202
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
The effect of fly ash on N mineralization in sewage sludge was studied during a 5-week aerobic incubation of soil-waste mixtures at different loading rates under controlled conditions. Periodically, the mixtures were leached with distilled water and the inorganic N released was determined in the percolates. The data were tested by an analysis of variance with repeated measures. Significant differences were found among different incubation periods and also between different treatments. The net N mineralization, expressed as a percentage of organic N added in the sludge, was drastically reduced when higher rates (500 Mg ha-1) of fly ash were added.
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收藏
页码：199 / 201
页数：3
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