Nitrogen mineralization of bioslurry and other manures in soil
نویسندگان
چکیده
منابع مشابه
Nitrogen and Carbon Mineralization Dynamics of Manures and Composts
Nitrogen and carbon mineralization rates of 19 manure and compost samples were determined in 1996, with an additional 12 samples evaluated in 1997. These organic amendments were mixed with a soil : sand blend at 2% by dry weight and the amended blends were incubated at constant moisture for 12 (1996) or 24 weeks (1997) at 25 °C. Net N mineralization was measured at 4(1996) or 8-week (1997) inte...
متن کاملNitrogen mineralization potential of three animal manures applied on a sandy clay loam soil.
Understanding the dynamics of N forms applied as manure is germane for appropriate rate and timing of applications of manure. Manure characterization and laboratory incubation were conducted for 120 days to study the mineralization of poultry, cattle and goat manures. Results showed that manure properties differ. Net immobilization of N was recorded for goat and cattle manures while poultry man...
متن کاملSoil Carbon and Nitrogen Mineralization: Influence of Drying Temperature
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...
متن کاملSoil 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 ...
متن کاملModelling nitrogen mineralization from manures: representing quality aspects by varying C:N ratio of sub-pools
The mineralization/immobilization of nitrogen when organic sources are added to soil is represented in many simulation models as the outcome of decomposition of the added material and synthesis of soil organic matter. These models are able to capture the pattern of N release that is attributable to the N concentration of plant materials, or more generally the C:N ratio of the organic input. How...
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ژورنال
عنوان ژورنال: Research in Agriculture Livestock and Fisheries
سال: 2015
ISSN: 2409-9325,2409-0603
DOI: 10.3329/ralf.v2i2.25002