نتایج جستجو برای: carbon and nitrogen mineralization potentials

تعداد نتایج: 16919291  

اوستان, شاهین , علی‌اصغرزاده , ناصر , سودایی مشاعی, صاحب ,

  Understanding nitrogen mineralization from different organic sources should be a key factor in developing efficient prediction of the need for nitrogen fertilization with minimal negative environmental impact. In order to investigate nitrogen mineralization rate in soils amended with compost, vermicompost and cattle manure, an experiment was done as factorial in a randomized complete block de...

2014
D. R. Chaudhary J. Chikara A. Ghosh

Use and management of jatropha residue is currently an important global issue for attaining sustainability in biofuel production from Jatropha curcas on wastelands. Perhaps, knowledge about the decomposition characteristics and nutrient release pattern from jatropha residues amended soils are lacking. Thus, the objective of present research was to characterize the carbon (C) and nitrogen (N) mi...

Journal: :Forests 2023

Nitrogen deposition can change the soil in N and C cycling processes. However, a general understanding of how changes mineralization has not yet been reached. Soil organic beneath dominant shrubs Haloxylon ammodendron between response to two levels addition (2.5 gN m−2 5 per year) were investigated 1st, 4th, 9th year temperate desert northern China. promoted (RmN), nitrification rate (RNN) incr...

2012
Christian Alsterberg Kristina Sundbäck Stefan Hulth

Effects of warming and nutrient enrichment on intact unvegetated shallow-water sediment were investigated for 5 weeks in the autumn under simulated natural field conditions, with a main focus on trophic state and benthic nitrogen cycling. In a flow-through system, sediment was exposed to either seawater at ambient temperature or seawater heated 4°C above ambient, with either natural or nutrient...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

2012
Lea Ellegaard-Jensen Søren Rosendahl

Microbial pesticide degradation studies have until now mainly focused on bacteria, although fungi have also been shown to degrade pesticides. In this study we clarify the background for the ability of the common soil fungus Mortierella to degrade the phenylurea herbicide diuron. Diuron degradation potentials of five Mortierella strains were compared, and the role of carbon and nitrogen for the ...

Journal: :Chemical communications 2011
Won Jun Lee Duck Hyun Lee Tae Hee Han Sun Hwa Lee Hyoung-Seok Moon Jin Ah Lee Sang Ouk Kim

Biomimetic mineralization of vertical N-doped carbon nanotubes is demonstrated as a straightforward route for carbon-based mineral nanocomposites. The N-doped sites along the carbon nanotube backbone play the role of nucleation sites for mineralization.

2007
Noel P. Gurwick Peter M. Groffman Joseph B. Yavitt Arthur J. Gold Gary Blazejewski Mark Stolt

Buried horizons and lenses in riparian soil profiles harbor large amounts of carbon relative to the surrounding soil horizons. Because these buried soil horizons, as well as deep surface horizons, frequently lie beneath the water table, their impact on nitrogen transport across the terrestrial–aquatic interface depends upon their frequency and spatial distribution, and upon the lability of asso...

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