Carbon and Nitrogen Mineralization in Soil Combining Sewage Sludge and Straw
نویسندگان
چکیده
منابع مشابه
Soil carbon and nitrogen mineralization: Theory and models across scales
In the last 80 years, a number of mathematical models of different level of complexity have been developed to describe biogeochemical processes in soils, spanning spatial scales from few mm to thousands of km and temporal scales from hours to centuries. Most of these models are based on kinetic and stoichiometric laws that constrain elemental cycling within the soil and the nutrient and carbon ...
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samples. When a soil analysis requires field-moist soil, a pre-incubation time of 7 to 10 d after rewetting dried Carbon and N mineralization in dried soils that are rewetted has soil may be used to equilibrate the samples before analybeen proposed as a rapid index of C and N mineralization potential sis (Franzluebbers et al., 1996). and to reflect soil management, but further research is neede...
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An incubation experiment lasting 111 d was carried out to study the effect of the addition of three clay minerals (Nabentonite, Ca-bentonite, and zeolite) to soil derived from sewage sludge on water-extractable and exchangeable forms of four heavy metals (Zn, Cd, Cu, and Ni), as well as on soil organic matter mineralization, microbial biomass C and the release of inorganic N. The addition of cl...
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Living roots and their rhizodeposits affect microbial activity and soil carbon (C) and nitrogen (N) mineralization. This so-called rhizosphere priming effect (RPE) has been increasingly recognized recently. However, the magnitude of the RPE and its driving mechanisms remain elusive. Here we investigated the RPE of two plant species (soybean and sunflower) grown in two soil types (a farm or a pr...
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We investigated the feasibility of anaerobic codigestion of sewage sludge and rice straw. Laboratory-scale mesophilic and thermophilic digesters were operated with hydraulic retention times of 20 and 15 days, respectively. The feeding ratio of sewage sludge and rice straw was 1:0.5 based on the total solids (TS). Before digestion, the rice straw was ground to ca. 5 mm in length (grinding pretre...
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ژورنال
عنوان ژورنال: Revista Brasileira de Ciência do Solo
سال: 2015
ISSN: 0100-0683
DOI: 10.1590/01000683rbcs20140324