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Manure Nutrient Evaluation Routine (MANNER-NPK) - KT0105

Description
The overall objective of the project is to develop a new version of the MANNER decision support system (to be known as MANNER-NPK) aimed specifically at farmers and advisors. MANNER-NPK will include the latest information on readily available N losses by ammonia volatilisation, nitrous oxide emission and denitrification, and nitrate leaching, and N release through the mineralisation of manure organic nitrogen (N) as synthesised in the companion project MANNER-PSM (DEFRA project KT0106). MANNER-NPK will also enable the user to estimate phosphorus, potassium, magnesium and sulphur supply from organic manures, input multiple manure applications within a single season and calculate the economic value of a manure application. Additionally, a routine will be developed which automatically converts manure nutrient analyses from a dry matter to fresh weight basis and a module that calculates manure output volumes for use in the production of Farm Waste Management Plans, and provides a permanent record of manure applications on a field-by-field basis.

MANNER-NPK will provide a direct means of transferring recent research results to farmers and advisors, helping them improve the precision of fertiliser (NPK) advice where organic manures are applied to land and at the same time minimising N and P losses to the wider environment. This will assist DEFRA Rural and Marine Environment Division in the further development of policies to limit nitrogen and phosphorus losses from agricultural land, and improving the utilisation of nutrients from organic manures as part of sustainable farming systems.
Objective
The overall objective of the project is to develop a new version of the MANNER decision support system (to be known as MANNER -NPK) aimed specifically at farmers and their advisors.

More specifically the objectives of the project are:

1. To incorporate the latest research information on readily available N losses by ammonia volatilisation, nitrous oxide emission and denitrification, and nitrate leaching, and N release through the mineralisation of manure organic N following the land application of manures (as described in MANNER- PSM).
2. To widen the scope of MANNER-NPK to include predictions of phosphorus (P), potassium (K), magnesium (Mg) and sulphur (S) supply from organic manure applications.
3. To enable the user to calculate manure nutrient supply where more than one manure application has been made to a field during the year.
4. To provide a facility to allow manure nutrient analysis results as reported by laboratories to be directly input into MANNER, without the need for manual conversion.
5. To present results of the manure nutrient supply calculations in terms of both the fertiliser replacement value (kg/ha) and economic (£/ha) value.
6. To produce a new module to enable calculation of manure output volumes and a permanent record of manure applications on a field-by-field basis.
Project Documents
• Final Report : MANURE NUTRIENT EVALUATION ROUTINE (MANNER - NPK)   (1662k)
Time-Scale and Cost
From: 2001

To: 2004

Cost: £206,170
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
Environmental Protection              
Manures              
Sustainable Production              
Waste Management              
Fields of Study
Environmental Stewardship