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You searched for: Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Subject term simulation models Remove constraint Subject term: simulation models Subject term cattle manure Remove constraint Subject term: cattle manure
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1. ADM1-based modeling of anaerobic codigestion of maize silage and cattle manure – calibration of parameters and model verification (part II) / Modelowanie kofermentacji kiszonki kukurydzy i obornika bydlęcego za pomocą ADM1 – kalibracja i weryfikacja modelu (część II)

Author:
Katarzyna Bułkowska; Ireneusz Białobrzewski; Zygmunt Mariusz Gusiatin; Ewa Klimiuk; Tomasz Pokój
Source:
Archives of environmental protection 2015 v.41 no.3 pp. 20-27
ISSN:
2083-4810
Subject:
anaerobic digestion; biogas; cattle manure; corn silage; simulation models
Abstract:
... The aim of this study was to implement ADM1xp model to simulate behavior of anaerobic co-digestion of maize silage and cattle manure. The accuracy of ADM1xp has been assessed against experimental data of anaerobic digestion, performed at OLR = 2.1 gVS dm⁻³·d⁻¹ and HRT = 45d. Due to the high number of parameters in ADM1xp, it was necessary to develop a customized procedure limiting the range of par ...
DOI:
10.1515/aep-2015-0027

2. Improving ADM1 model to simulate anaerobic digestion start-up with inhibition phase based on cattle slurry

Author:
A. Normak; J. Suurpere; I. Suitso; E. Jõgi; E. Kokin; P. Pitk
Source:
Biomass and bioenergy 2015 v.80 pp. 260-266
ISSN:
0961-9534
Subject:
anaerobic digestion; bacteria; cattle manure; equations; hydrolysis; microbial growth; simulation models
Abstract:
... The Anaerobic Digestion Model No.1 (ADM1) was improved to simulate an anaerobic digestion start-up phase. To improve the ADM1, a combined hydrolysis equation was used based on the Contois model of bacterial growth and the function of hydrolysis inhibition by VFA. The start-up with fresh cattle slurry was carried out in a pilot-scale reactor to calibrate the chosen parameters of the ADM1. The impor ...
DOI:
10.1016/j.biombioe.2015.05.021

3. Modeling nitrous oxide emissions from organic and conventional cereal-based cropping systems under different management, soil and climate factors

Author:
Jordi Doltra; Jørgen E. Olesen; Dolores Báez; Aránzazu Louro; Ngonidzashe Chirinda
Source:
European journal of agronomy 2015 v.66 pp. 8-20
ISSN:
1161-0301
Subject:
agricultural land; agroclimatology; barley; catch crops; cattle manure; climatic factors; corn; crop rotation; denitrification; field experimentation; forage; greenhouse gas emissions; nitrification; nitrogen; nitrogen fertilizers; nitrous oxide; pig manure; plowing; simulation models; soil; wheat; Denmark; Spain
Abstract:
... Mitigation of greenhouse gas emissions from agriculture should be assessed across cropping systems and agroclimatic regions. In this study, we investigate the ability of the FASSET model to analyze differences in the magnitude of N2O emissions due to soil, climate and management factors in cereal-based cropping systems. Forage maize was grown in a conventional dairy system at Mabegondo (NW Spain) ...
DOI:
10.1016/j.eja.2015.02.002

4. Multi-scale trade-off analysis of cereal residue use for livestock feeding vs. soil mulching in the Mid-Zambezi Valley, Zimbabwe

Author:
Frédéric Baudron; Sylvestre Delmotte; Marc Corbeels; Juan M. Herrera; Pablo Tittonell
Source:
Agricultural systems 2015 v.134 pp. 97-106
ISSN:
0308-521X
Subject:
adverse effects; application rate; carbon nitrogen ratio; cattle; cattle manure; cotton; crop residues; crop yield; dry season; farm size; farmers; farming systems; farms; herds; immobilization in soil; livestock feeding; mechanization; microbial biomass; mulches; mulching; nitrogen fertilizers; simulation models; soil; soil fertility; soil microorganisms; Zimbabwe
Abstract:
... Cereal residues represent a major resource for livestock feeding during the dry season in southern Africa. When kept on the soil surface instead of feeding them to livestock, crop residues can contribute to increasing soil fertility and maintaining crop productivity in the short- and the long-term. We explored these trade-offs for smallholder cotton–sorghum farming systems in the semi-arid Zambezi ...
DOI:
10.1016/j.agsy.2014.03.002