Nitrogen Release Pattern From Organic Manures Applied to an Acid Soil
نویسندگان
چکیده
منابع مشابه
Nitrogen 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 کاملEstimating plant-available nitrogen release from manures, composts, and specialty products.
Recent adoption of national rules for organic crop production have stimulated greater interest in meeting crop N needs using manures, composts, and other organic materials. This study was designed to provide data to support Extension recommendations for organic amendments. Specifically, our objectives were to (i) measure decomposition and N released from fresh and composted amendments and (ii) ...
متن کاملTransport of nitrogen in soil water following the application of animal manures to sloping grassland
A field experiment was conducted on a sloping grassland soil in southwest England to investigate the downslope transport of nitrogen in soil water following the application of cattle manure, slurry and inorganic fertilizer. Transport of nitrogen (N) species was monitored on hydrologically isolated plots. Manure (50 t ha"), slurry (50 m ha") and fertilizer (250 kg N ha") were applied in February...
متن کاملFine Root Growth Response to Soil-Applied Nitrogen and Paclobutrazol
Practices to promote tree root growth have been sought in arboriculture for many years, especially as a treatment for trees that are stressed or in decline. Tree fertilization is a common practice in arboriculture. A few research reports have shown that nitrogen fertilization can increase fine-root density in localized areas of soil where the fertilizer has been applied, but the effect on the w...
متن کاملRelease of organic nitrogen compounds from kerogen via catalytic hydropyrolysis
High hydrogen pressure pyrolysis (hydropyrolysis) was performed on samples of solvent extracted Kimmeridge Clay Formation source rock with a maturity equivalent to ca. 0.35% vitrinite re ̄ectance. We describe the types and distributions of organic nitrogen compounds in the pyrolysis products (hydropyrolysates) using GCMS. Compounds identi®ed included alkyl-substituted indoles, carbazoles, benzoc...
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ژورنال
عنوان ژورنال: Journal of Agricultural Science
سال: 2013
ISSN: 1916-9760,1916-9752
DOI: 10.5539/jas.v5n6p174