Nitrogen mineralization from mature bio-waste compost in vineyard soils. I. Long-term laboratory incubation experiments

2004 ◽  
Vol 167 (4) ◽  
pp. 397-407 ◽  
Author(s):  
Claas Nendel ◽  
Stephan Reuter ◽  
Roland Kubiak ◽  
Rolf Nieder
Keyword(s):  
Nitrogen Mineralization ◽  
Laboratory Incubation ◽  
Incubation Experiments ◽  
Vineyard Soils

scholarly journals Biodegradation of Some Organic Materials in Soils and Soil Constructions: Experiments, Modeling and Prevention

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1889 ◽  
Author(s):  
Andrey Smagin ◽  
Nadezhda Sadovnikova ◽  
Vyacheslav Vasenev ◽  
Marina Smagina
Keyword(s):  
Carbon Dioxide Emission ◽  
Polymeric Materials ◽  
Emission Rates ◽  
Soil Environment ◽  
Decomposition Rates ◽  
Microbial Inhibitors ◽  
Incubation Experiments ◽  
Biodegradation Process ◽  
Thermodynamic Conditions

The decomposition of natural and synthetic polymeric materials (peat, humates, biochar, strongly swelling hydrogels and other soil conditioners) in a biologically and chemically active soil environment inevitably leads to a reduced ability to improve the structure, water-retention, absorptive capacity and fertility of artificial soil constructions in urbanized ecosystems and agro landscapes (constructozems). Quantitative assessment of the biodegradation process using field and laboratory incubation experiments, as well as mathematical modeling, showed the possibility of significant (up to 30–50% per year) losses of organic matter of constructozems and a corresponding deterioration of soil quality. Incubation experiments that track the carbon dioxide emission rates of polymeric materials under given thermodynamic conditions allow for the estimation of decomposition rates in addition to an exploration on the dependence of such rates on additions of microbial inhibitors. The use of nomographs provide an opportunity to optimize long-term amendment performance in soil constructions by identifying the most favorable depths to apply amendments to ensure stable functioning during desired in-service timelines in the built environment. The results of the study are useful for geo-engineers and landscaping practitioners.

Management effects on the dynamics and storage rates of organic matter in long-term crop rotations

2004 ◽  
Vol 84 (1) ◽  
pp. 49-61 ◽  
Author(s):  
E. A. Paul ◽  
H. P. Collins ◽  
K. Paustian ◽  
E. T. Elliott ◽  
S. Frey ◽  
...  
Keyword(s):  
Organic Matter ◽  
C Sequestration ◽  
Organic C ◽  
Soil C ◽  
Site Analysis ◽  
Laboratory Incubation ◽  
C And N ◽  
A Site ◽  
Management Effects

Factors controlling soil organic matter (SOM) dynamics in soil C sequestration and N fertility were determined from multi-site analysis of long-term, crop rotation experiments in Western Canada. Analyses included bulk density, organic and inorganic C and N, particulate organic C (POM-C) and N (POM -N), and CO2-C evolved during laboratory incubation. The POM-C and POM-N contents varied with soil type. Differences in POM-C contents between treatments at a site (δPOM-C) were related (r2= 0.68) to treatment differences in soil C (δSOC). The CO2-C, evolved during laboratory incubation, was the most sensitive indicator of management effects. The Gray Luvisol (Breton, AB) cultivated plots had a fivefold difference in CO2-C release relative to a twofold difference in soil organic carbon (SOC). Soils from cropped, Black Chernozems (Melfort and Indian Head, SK) and Dark Brown Chernozems (Lethbridge, AB) released 50 to 60% as much CO2-C as grassland soils. Differences in CO2 evolution from the treatment with the lowest SOM on a site and that of other treatments (δCO2-C) in the early stages of the incubation were correlated to δPOM-C and this pool reflects short-term SOC storage. Management for soil fertility, such as N release, may differ from management for C sequestration. Key words: Multi-site analysis, soil management, soil C and N, POM-C and N, CO2 evolution

Nitrogen mineralization in soil from perennial grassland measured through long-term laboratory incubations

2002 ◽  
Vol 138 (3) ◽  
pp. 301-310 ◽  
Author(s):  
A. COLLINS ◽  
D. W. ALLINSON
Keyword(s):  
Organic Matter ◽  
Nitrogen Mineralization ◽  
N Mineralization ◽  
Fertilizer Application ◽  
Soil Samples ◽  
N Fertilizer ◽  
Mineralization Potential ◽  
Perennial Grassland ◽  
N Mineralization Potential

Under perennial grasslands, nitrogen contained in organic matter becomes available at varying rates via mineralization throughout the growing season. The amount of N present at any given time indicates only the quantity immediately present, and does not include N which has already been removed either by leaching or uptake into the plant system, nor the N which will become available as organic matter breaks down over time. Long-term aerobic laboratory incubation methods have been used successfully to estimate potential N mineralization under various cropping conditions. They had not been used successfully, however, to estimate potential N availability under perennial grassland.In this research, soil samples from two long-term perennial grassland sites were taken before and after N fertilizer application at rates of 0, 175, 350 and 525 kg/ha. The soils were incubated in the laboratory at 35 °C and were eluted at 2, 4, 8, 12, 16, 22 and 30-week intervals, the length of time prescribed for determining N mineralization potential. Because a plateau had not been reached, incubation was allowed to continue for 198 weeks and 148 weeks for the pre- and post-N samples, respectively. Total N was high, as was soil organic matter in both sets of soil samples. Nitrogen mineralization potential was underestimated after 30 weeks of incubation, and overestimated after 148 weeks. The closest agreement between N measured and the estimated N mineralization potential, came after 198 weeks of incubation. This study confirmed the high N-supplying capacity of soil under long-term perennial grasslands. It also indicated that the recommended 30-week period needed to estimate N mineralization potential under other cropping systems was insufficient for a perennial grassland soil. Cumulative differences in N mineralization were found with varying rates of N fertilizer application, but these differences were rarely seen on an individual weekly basis, nor were they significant at the termination of the experiment. The response to N application differed by site.

scholarly journals Does long-term farmyard manure fertilization affect short-term nitrogen mineralization from farmyard manure?

2009 ◽  
Vol 46 (2) ◽  
pp. 159-167 ◽  
Author(s):  
Leif Nett ◽  
Sven Averesch ◽  
Silke Ruppel ◽  
Jörg Rühlmann ◽  
Carmen Feller ◽  
...  
Keyword(s):  
Nitrogen Mineralization ◽  
Farmyard Manure ◽  
Short Term

Short-term and long-term effects of bacterivorous nematodes and nematophagous fungi on carbon and nitrogen mineralization in microcosms

1994 ◽  
Vol 17 (4) ◽  
pp. 249-256 ◽  
Author(s):  
L. A. Bouwman ◽  
J. Bloem ◽  
P. H. J. F. van den Boogert ◽  
F. Bremer ◽  
G. H. J. Hoenderboom ◽  
...  
Keyword(s):  
Nitrogen Mineralization ◽  
Nematophagous Fungi ◽  
Long Term Effects ◽  
Short Term ◽  
Carbon And Nitrogen
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