Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 554197
Title Nitrogen, phosphorus, and potassium flows through the manure management chain in China
Author(s) Bai, Zhaohai; Ma, Lin; Jin, Shuqin; Ma, Wenqi; Velthof, Gerard L.; Oenema, Oene; Liu, Ling; Chadwick, David; Zhang, Fusuo
Source Environmental Science and Technology 50 (2016)24. - ISSN 0013-936X - p. 13409 - 13418.
Department(s) Soil Biology
Environmental Policy
Sustainable Soil Use
Publication type Refereed Article in a scientific journal
Publication year 2016

The largest livestock production and greatest fertilizer use in the world occurs in China. However, quantification of the nutrient flows through the manure management chain and their interactions with management-related measures is lacking. Herein, we present a detailed analysis of the nutrient flows and losses in the “feed intake−excretion−housing−storage−treatment−application” manure chain, while considering differences among livestock production systems. We estimated the environmental loss from the manure chain in 2010 to be up to 78% of the excreted nitrogen and over 50% of the excreted phosphorus and potassium. The greatest losses occurred from housing and storage stages through NH 3 emissions (39% of total nitrogen losses) and direct discharge of manure into water bodies or landfill (30−73% of total nutrient losses). There are large differences among animal production systems, where the landless system has the lowest manure recycling. Scenario analyses for the year 2020 suggest that significant reductions of fertilizer use (27−100%) and nutrient losses (27−56%) can be achieved through a combination of prohibiting manure discharge, improving manure collection and storages infrastructures, and improving manure application to cropland. We recommend that current policies and subsidies targeted at the fertilizer industry should shift to reduce the costs of manure storage, transport, and application.

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