Nitrogen: some practical solutions for the poultry industry

Chambers, B. J.; Smith, K. A.

doi:10.1079/wps19980025

Cited by 10 publications

(5 citation statements)

References 1 publication

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“…4 million tonnes of poultry manure are produced annually in the UK, of which c. 2 . 5 million tonnes are from broiler and turkey units (Chambers & Smith 1998). Broiler and turkey litter is normally in the form of excreta mixed with bedding material (generally wood shavings or straw) and has a dry matter content of c. 60 %.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen value of poultry litter applications to root crops and following cereal crops

2003

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SU MMARYThe efficiency of poultry litter nitrogen (N) utilization was studied in seven field experiments in eastern England during harvest years 1991 to 1994. Poultry litter was applied at different application rates in winter or spring, prior to sugar beet or potatoes. The mean manure N efficiency based on crop yields was 33 % (range 25-43 %) for sugar beet and 36 % (range 13-66 %) for potatoes. For potatoes, the manure N efficiency was greater from spring (mean 43 %) than from winter application timings (mean 30 %). The manure readily available N applied (i.e. ammonium-N+uric acid-N) and fertilizer N replacement values were well related (P<0 . 05) for both sugar beet and potatoes. Similarly, there was a good relationship (P<0 . 001) between the amounts of readily available N applied in the poultry litter dressings and measured elevations in spring soil mineral N supply. Where the poultry litter dressings supplied >600 kg/ha total N to sugar beet, root sugar concentrations were depressed (P<0 . 05) and amino-N concentrations increased (P<0 . 01). The soil mineral N supply following harvest of the sugar beet and potato crops was also increased where application rates supplied >600 kg/ha total N. Yield increases were also recorded in cereal crops grown the following season, but only where high rates of manure N (>600 kg/ha) had been applied. The current work has shown that the fertilizer N replacement value of poultry litter can be predicted based on the amounts of total and readily available N applied, providing guidance to farmers on appropriate reductions in inorganic fertilizer N applications to make allowance for poultry litter N supply.

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Section: Introductionmentioning

confidence: 99%

Nitrogen value of poultry litter applications to root crops and following cereal crops

2003

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“…During his career with ADAS, he worked on a wide range of topics for a variety of funders. Highlights of his early work included research on the physical properties of horticultural composts (Bragg & Chambers, ), alternatives to the use of peat in growing media (Bragg, ) and assessing the extent of soil water erosion in lowland England and Wales (Chambers et al ., , 2000a; Skinner & Chambers, ; Chambers & Garwood, ), before he moved on to investigate the nutrient value of manures (Smith & Chambers, ; Nicholson et al ., , , , ; Chambers & Smith, ; Smith et al ., ; Chambers et al ., , 2000b; Chadwick et al ., ; Sagoo et al ., ; Shepherd & Chambers, ). He also assessed the environmental impacts of a range of organic materials recycled to agricultural land in terms of nutrient losses to water (Catt et al ., ; Smith et al ., ; Dampney et al ., ; Hodgkinson et al ., ; Williams et al ., ), ammonia volatilization (Pain et al ., ; Misselbrook et al ., , ; Nicholson et al ., 2004a), nitrous oxide emissions (Cardenas et al ., ) and pathogen behaviour (Nicholson et al ., 2004b, ).…”

Section: Editorial and Obituarymentioning

confidence: 99%

Editorial

Nicholson¹,

Speller²,

Newell-Price³

2016

Soil Use and Management

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“…UK recommendations are that poultry manure applications should supply no more than 250 kg total N/ha per annum, meaning that 2-3 hectares are required per 1000 birds. The nitrogen should also be supplied at a time when crop productivity is nitrogen-limited (Chambers and Smith, 1998). Various substances have been tested for their efficacy in preventing gaseous nitrogen losses from manure during storage (Pratt et al, 2006).…”

Section: Manure Treatmentmentioning

confidence: 99%

Environmental sustainability of egg production and processing

Macleod

2011

Improving the Safety and Quality of Eggs and Egg Products

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Nitrogen: some practical solutions for the poultry industry

Cited by 10 publications

References 1 publication

Nitrogen value of poultry litter applications to root crops and following cereal crops

Nitrogen value of poultry litter applications to root crops and following cereal crops

Editorial

Environmental sustainability of egg production and processing

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