Browsing by Author "Chadwick, D. R."

Assessment of the potential N mineralization of different particle-size fractions in two diary cattle slurries

Fangueiro, D.; Chadwick, D. R.; Bol, R. (2008)

Best practices for reducing greenhouse gases from ruminants

Moorby, J. M.; Chadwick, D. R.; Chambers, B. J. (2008)

Cattle slurry treatment by screw press separation and chemically enhanced settling: Effect on greenhouse gas emissions after land spreading and grass yield

Fangueiro, D.; Senbayran, M.; Trindade, H.; Chadwick, D. R. (2008)

Five cattle slurry fractions with distinct characteristics were obtained using a combined separation process (screw press + chemically enhanced settling using polyacrylamide (PAM)). The purpose of the present study was to ...

Cattle slurry treatment by screw press separation and chemically enhanced settling: Effect on greenhouse gas emissions after land spreading and grass yield

Fangueiro, D.; Senbayran, M.; Trindade, H.; Chadwick, D. R. (2008)

Abstract Five cattle slurry fractions with distinct characteristics were obtained using a combined separation process (screw press + chemically enhanced settling using polyacrylamide (PAM)). The purpose of the present study ...

Establishing relative release kinetics of faecal indicator organisms from different faecal matrices

Hodgson, C. J.; Bulmer, N.; Chadwick, D. R.; Oliver, D. M.; Heathwaite, A. L.; Fish, R. D.; Winter, D. M. (2009-04-30)

A laboratory assay for comparative characterization of various faecal matrices with respect to faecal indicator organism (FIO) release using artificial rain water. Fresh sheep and beef-cattle faeces, dairy cattle slurry ...

Establishing relative release kinetics of faecal indicator organisms from different faecal matrices

Hodgson, C. J.; Bulmer, N.; Chadwick, D. R.; Oliver, D. M.; Heathwaite, A. L.; Fish, R. D.; Winter, D. M. (2009-04-30)

A laboratory assay for comparative characterization of various faecal matrices with respect to faecal indicator organism (FIO) release using artificial rain water. Fresh sheep and beef-cattle faeces, dairy cattle slurry ...

Laboratory assessment of the effect of cattle slurry pre-treatment on organic N degradation after soil application and N2O and N2 emissions

Fangueiro, D.; Pereira, J.; Chadwick, D. R.; Coutinho, J.; Moreira, N.; Trindade, H. (2008)

Slurry separation using mechanical and chemical methods is one of the options considered to solve problems of slurry management at the farm scale. The fractions obtained with such treatments have distinct compositions, ...

Laboratory assessment of the effect of cattle slurry pre-treatment on organic N degradation after soil application and N2O and N2 emissions

Fangueiro, D.; Pereira, J.; Chadwick, D. R.; Coutinho, J.; Moreira, N.; Trindade, H. (2008-02)

Slurry separation using mechanical and chemical methods is one of the options considered to solve problems of slurry management at the farm scale. The fractions obtained with such treatments have distinct compositions, ...

Management of livestock and their manure to reduce the risk of microbial transfers to water - the case for an interdisciplinary approach

Chadwick, D. R.; Fish, R. D.; Oliver, D. M.; Heathwaite, A. L.; Hodgson, C. J.; Winter, M. (2008)

This paper addresses the issue of the risk that livestock agriculture has for human exposure to pathogenic organisms from watercourses (including bathing waters or consumption of contaminated shellfish). The paper describes ...

Management of livestock and their manure to reduce the risk of microbial transfers to water - the case for an interdisciplinary approach

Chadwick, D. R.; Fish, R. D.; Oliver, D. M.; Heathwaite, A. L.; Hodgson, C. J.; Winter, M. (2008)

This paper addresses the issue of the risk that livestock agriculture has for human exposure to pathogenic organisms from watercourses (including bathing waters or consumption of contaminated shellfish). The paper describes ...

Relationship between cattle stocking density and NH3 emissions from cattle housing

Camp, V.; Gilhespy, S. L.; Misselbrook, T. H.; Chadwick, D. R. (2008)

This study aims to assess the influence of livestock density on NH3 emissions from cattle housed on a straw-bedded system. The study was conducted at IGER, North Wyke, England, UK, using a system of polytunnels designed ...

Relationship between cattle stocking density and NH3 emissions from cattle housing

Camp, V.; Gilhespy, S. L.; Misselbrook, T. H.; Chadwick, D. R. (2008)

A review of research to identify best practice for reducing pollution gas emissions from agriculture and land management

Moorby, J. M.; Christie, M.; Chadwick, D. R.; Misselbrook, T. H.; Chambers, B. J.; Harris, D. (Defra, 2010)

SIMSDAIRY: A modelling framework to identify sustainable dairy farms in the UK. Framework description and test for organic systems and N fertiliser optimisation

del Prado, A.; Misselbrook, T. H.; Chadwick, D. R.; Hopkins, A.; Dewhurst, R. J.; Davison, P.; Butler, A.; Schroder, J.; Scholefield, D. (2011-09-01)

Multiple demands are placed on farming systems today. Society, national legislation and market forces seek what could be seen as conflicting outcomes from our agricultural systems, e.g. food quality, affordable prices, a ...

SIMSDAIRY: A modelling framework to identify sustainable dairy farms in the UK. Framework description and test for organic systems and N fertiliser optimisation

del Prado, A.; Misselbrook, T. H.; Chadwick, D. R.; Hopkins, A.; Dewhurst, R. J.; Davison, P.; Butler, A.; Schroder, J.; Scholefield, D. (2011-09-01)

Multiple demands are placed on farming systems today. Society, national legislation and market forces seek what could be seen as conflicting outcomes from our agricultural systems, e.g. food quality, affordable prices, a ...

Will additional straw bedding in buildings housing cattle and pigs reduce ammonia emissions?

Gilhespy, S. L.; Webb, J.; Chadwick, D. R.; Retter, A. L.; Camp, V.; Baron, A.; Misselbrook, T. H. (2009)

Buildings housing livestock are the second largest source of ammonia (NH3) emissions from UK agriculture. In the UK ca 42% of NH3 emissions from buildings are from those in which cattle and pigs are bedded on straw. ...

Will additional straw bedding in buildings housing cattle and pigs reduce ammonia emissions?

Gilhespy, S. L.; Webb, J.; Chadwick, D. R.; Retter, A. L.; Camp, V.; Baron, A.; Misselbrook, T. H. (2009)

Buildings housing livestock are the second largest source of ammonia (NH3) emissions from UK agriculture. In the UK ca 42% of NH3 emissions from buildings are from those in which cattle and pigs are bedded on straw. ...

Browsing by Author "Chadwick, D. R."

H...............H

Browsing by Author "Chadwick, D. R."

Search Cadair

Browse

All of Cadair

My Account