An enhanced software tool to support better use of manure nutrients: MANNER‐NPK. (13th September 2013)

• Record Type: Journal Article
• Authors: Nicholson, F. A.; Bhogal, A.; Chadwick, D.; Gill, E.; Gooday, R. D.; Lord, E.; Misselbrook, T.; Rollett, A. J.; Sagoo, E.; Smith, K. A.; Thorman, R. E.; Williams, J. R.; Chambers, B. J.
• Is Part Of: Soil use and management. Volume 29:Number 4(2013:Dec.)
• Page Start: 473
• Page End: 484
• Publication Date: 2013-09-13
• Subjects: Soil management -- Periodicals; 631.4
• DOI: 10.1111/sum.12078
• Languages: English
• ISSNs: 0266-0032

Abstract

<abstract abstract-type="main" id="sum12078-abs-0001"> <title>Abstract</title> <p>MANNER‐<italic>NPK</italic> (MANure Nutrient Evaluation Routine) is a decision support tool for quantifying manure (and other organic material) crop available nutrient supply. The user‐friendly design of an earlier version of MANNER was retained, but in response to user and stakeholder feedback, additional functionality was included to underpin new and revised nitrogen (N) transformation/loss modules (covering ammonia volatilization, nitrate leaching and nitrous oxide/di‐nitrogen emissions, and organic N mineralization) and also to estimate manure phosphorus (as P₂O₅), potassium (as K₂O), sulphur (as SO₃) and magnesium (as MgO) supply. Notably, MANNER<italic>‐NPK</italic> provides N availability estimates for following crops through the mineralization of organic N. Validation of the crop available N supply estimates was undertaken by comparing predicted values with data from more than 200 field experimental measurements. For cattle, pig and poultry manures, there was good agreement (<italic>P </italic>&lt;<italic> </italic>0.001) between predicted and measured fertilizer N replacement values, indicating that MANNER‐<italic>NPK</italic> provides robust estimates of manure crop available N supply and N losses to the wider environment.</p> </abstract>