Rates of Decomposition in Soil and Release of Available Nitrogen from Cattle Manure and Municipal Waste Composts

Hadas, A.; Portnoy, Rita

doi:10.1080/1065657x.1997.10701885

Cited by 63 publications

(25 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the latter, nitrogen uptake by the compostfertilized crop is compared to that of a crop without fertilization or with mineral N fertilization. In incubation experiments using composts from different feedstocks and of varying maturity, N-mineralization rates ranging from −30.3% to +14.3% of the organic N were recorded (Chodak et al 2001;Gagnon and Simard 1999, Hadas and Portnoy 1997, Siebert et al 1998. In general, incubation experiments show that N-mineralization rates of mature composts are higher than of immature composts.…”

Section: N Mineralizationmentioning

confidence: 99%

Compost Use in Organic Farming

Erhart

Hartl

2010

Sustainable Agriculture Reviews

View full text Add to dashboard Cite

show abstract

Section: N Mineralizationmentioning

confidence: 99%

Compost Use in Organic Farming

Erhart

Hartl

2010

Sustainable Agriculture Reviews

View full text Add to dashboard Cite

show abstract

“…This is particularly true for manure management where it is desirable to generalize experimental data using models before proceeding to management applications (Borg et al, 1990). Notable modeling efforts related to organic material decomposition and N cycling in soil include those by Beraud et al (2005), Borg et al (1990), Grant et al (2004), Hadas and Molina (1993), Hadas and Portnoy (1997), Hadas et al (2004), Marchetti et al (2005), Melkonian et al (2004), Molina et al (1990). However, the applicability of most of these research efforts may be hampered by the fact that most models were developed and/or evaluated using laboratory-based data studies where important environmental factors such as temperature and soil wetness were held constant.…”

Section: Manure-n Modelingmentioning

confidence: 99%

Evaluation of the PNM Model for Simulating Drain Flow Nitrate-N Concentration Under Manure-Fertilized Maize

Sogbedji

Melkonian

et al. 2006

Plant Soil

View full text Add to dashboard Cite

Mathematical models may be used to develop management strategies that optimize the use of nutrients from complex sources such as manure in agriculture. The Precision Nitrogen Management (PNM) model is based on the LEACHN model and a maize N uptake/growth and yield model and focuses on developing more precise N management recommendations. The PNM model was evaluated for simulating drain flow nitrate-nitrogen (NO 3 -N) in a 3-yr study involving different times of liquid manure application on two soil textural extremes, a clay loam and a loamy sand under maize (Zea mays, L.) production. The model was calibrated for major N transformation rate constants including mineralization, nitrification and denitrification, and its performance was tested using two different calibration scenarios with increasing levels of generalization: (i) separate sets of rate constants for each individual soil type and (ii) a single set of rate constants for both soil types. When calibrated for each manure application treatment for each soil type, the model provided good simulations of monthly and seasonal drain flow

show abstract

“…While nitrogen dynamics during the composting process have been investigated by a number of researchers [2,10,22,26], relatively few studies have evaluated the continuing dynamics of nitrogen after the compost is incorporated in soil [7].…”

Section: Introductionmentioning

confidence: 99%

Compost mineralization in soil as a function of composting process conditions

Cambardella¹,

Richard

Russell³

2003

European Journal of Soil Biology

View full text Add to dashboard Cite

Compost has been shown to have a range of positive impacts on soil quality and can provide an important source of nutrients for plants. While these benefits have been documented for many finished composts, there is presently little understanding of the impact of composting process conditions and the extent of compost decomposition on soil C and N mineralization after compost incorporation. This study evaluated the impact of composting process conditions and the extent of compost decomposition on soil C and N mineralization after compost incorporation. Dried, ground composts were blended with equal parts of quartz sand and soil and incubated aerobically for 28 d at 30 °C. Cumulative respired CO 2 -C and net mineralized N were quantified. Results indicate that (1) organic substrates that did not degrade due to sub-optimal conditions during the composting process can readily mineralize after incorporation in soil; (2) C and N cycling dynamics in soil after compost incorporation can be affected by compost feedstock, processing conditions, and time; and (3) denitrification after compost incorporation in soil can limit N availability from compost. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. AbstractCompost has been shown to have a range of positive impacts on soil quality and can provide an important source of nutrients for plants. While these benefits have been documented for many finished composts, there is presently little understanding of the impact of composting process conditions and the extent of compost decomposition on soil C and N mineralization after compost incorporation. This study evaluated the impact of composting process conditions and the extent of compost decomposition on soil C and N mineralization after compost incorporation. Dried, ground composts were blended with equal parts of quartz sand and soil and incubated aerobically for 28 d at 30°C. Cumulative respired CO 2 -C and net mineralized N were quantified. Results indicate that (1) organic substrates that did not degrade due to sub-optimal conditions during the composting process can readily mineralize after incorporation in soil; (2) C and N cycling dynamics in soil after compost incorporation can be affected by compost feedstock, processing conditions, and time; and (3) denitrification after compost incorporation in soil can limit N availability from compost.

show abstract

Rates of Decomposition in Soil and Release of Available Nitrogen from Cattle Manure and Municipal Waste Composts

Cited by 63 publications

References 15 publications

Compost Use in Organic Farming

Compost Use in Organic Farming

Evaluation of the PNM Model for Simulating Drain Flow Nitrate-N Concentration Under Manure-Fertilized Maize

Compost mineralization in soil as a function of composting process conditions

Contact Info

Product

Resources

About