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Evaluating a Crop Circle active sensor-based in-season nitrogen management algorithm in different winter wheat cropping systems

Published online by Cambridge University Press:  01 June 2017

L. Zhou ,
G. Chen ,
Y. Miao ,
H. Zhang ,
Z. Chen ,
L. Xu  and
L. Guo
L. Zhou
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
G. Chen
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
Y. Miao*
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
H. Zhang
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
Z. Chen
Affiliation:
College of Surveying, Mapping and Land Information Engineering, Henan Polytechnic University, Jiaozuo,454000 Henan, China
L. Xu
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
L. Guo
Affiliation:
International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193China
*
†E-mail: ymiao@cau.edu.cn or ymiao2007@gmail.com
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Abstract

The objective of this study was to evaluate the performance of a Crop Circle sensor-based precision nitrogen (N) management (PNM) strategy in different winter wheat cropping systems under on-farm conditions in North China Plain (NCP). Four farmer’s fields were selected for on-farm experiments in Laoling County, Shandong Province of NCP in 2015-2016. In each field, the PNM strategy was evaluated in two winter wheat cropping systems: farmer’s conventional management (FCM) and regional optimum crop management (ROCM). In each cropping system, there were two N management strategies: 1) FCM or ROCM; 2) PNM. The results indicated that the PNM strategy significantly increased partial factor productivity (PFP) by 29% in the FCM system, but did not have any significant improvement in the ROCM system. The ROCM system, using either regional optimum N management or PNM, significantly increased both grain yield and PFP than the FCM system.

Keywords

precision in-season nitrogen managementregional optimum nitrogen managementpartial factor productivity
Type
Precision Nitrogen
Information
Advances in Animal Biosciences , Volume 8 , Special Issue 2: Papers presented at the 11th European Conference on Precision Agriculture (ECPA 2017), John McIntyre Centre, Edinburgh, UK, July 16–20 2017 , July 2017 , pp. 364 - 367
Copyright
© The Animal Consortium 2017 

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Footnotes

*

These authors contributed equally to this work.

References

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