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Tracking nitrogen losses in a greenhouse crop rotation experiment in North China using the EU-Rotate_N simulation model

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Guo, Ruiying, Nendel, Claas, Rahn, C. (Clive), Jiang, Chunguang and Chen, Q. (Qing) (2010) Tracking nitrogen losses in a greenhouse crop rotation experiment in North China using the EU-Rotate_N simulation model. Environmental Pollution, Vol.158 (No.6). pp. 2218-2229. doi:10.1016/j.envpol.2010.02.014 ISSN 0269-7491.

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Official URL: http://dx.doi.org/10.1016/j.envpol.2010.02.014

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Abstract

Vegetable production in China is associated with high inputs of nitrogen, posing a risk of losses to the
environment. Organic matter mineralisation is a considerable source of nitrogen (N) which is hard to
quantify. In a two-year greenhouse cucumber experiment with different N treatments in North China,
non-observed pathways of the N cycle were estimated using the EU-Rotate_N simulation model.
EU-Rotate_N was calibrated against crop dry matter and soil moisture data to predict crop N uptake, soil
mineral N contents, N mineralisation and N loss. Crop N uptake (Modelling Efficiencies (ME) between
0.80 and 0.92) and soil mineral N contents in different soil layers (ME between 0.24 and 0.74) were
satisfactorily simulated by the model for all N treatments except for the traditional N management. The
model predicted high N mineralisation rates and N leaching losses, suggesting that previously published
estimates of N leaching for these production systems strongly underestimated the mineralisation of N
from organic matter.

Item Type: Journal Article
Subjects: S Agriculture > SB Plant culture
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010)
Library of Congress Subject Headings (LCSH): Cucumbers -- China, Greenhouse management -- China, Crop rotation -- China, Nitrogen cycle
Journal or Publication Title: Environmental Pollution
Publisher: Elsevier
ISSN: 0269-7491
Official Date: June 2010
Dates:
DateEvent
June 2010Published
Volume: Vol.158
Number: No.6
Page Range: pp. 2218-2229
DOI: 10.1016/j.envpol.2010.02.014
Status: Peer Reviewed
Access rights to Published version: Restricted or Subscription Access
Funder: Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Deutscher Akademischer Austauschdienst (DAAD), China Scholarship Council (CSC), China. Guo jia ke xue ji shu bu [Ministry of Science and Technology]
Grant number: Project 30671236 (NSFC), Project 4080110 (NSFC), 2006BAD17B03 (MST), 2008BADA4B05 (MST)

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