Precision nitrogen management strategy for winter wheat in the North China Plain based on an active canopy sensor

Q. Cao, Y. Miao, F. Li, D. Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objective of this research was to develop a precision nitrogen (N) management strategy for winter wheat using a Crop Circle ACS-470 sensor and compare it with the GreenSeeker sensorbased precision N management strategy in North China Plain (NCP). Four site-years of field N rate experiments were conducted to investigate the relationships between in-season sensor measurements and yield of winter wheat in Quzhou Experiment station, China. Nine on-farm experiments were conducted at three different villages in Quzhou County in 2012/2013 to evaluate the performance of the N management strategy. Preliminary results indicated that the Crop Circle ACS-470 sensor could significantly improve estimation of early season plant N uptake and grain yield at Feekes growth stage 6 compared with the GreenSeeker sensor. A Crop Circle sensor-based precision N management strategy was proposed, which needs to be evaluated under on-farm conditions.

Original languageEnglish (US)
Title of host publicationPrecision Agriculture 2015 - Papers Presented at the 10th European Conference on Precision Agriculture, ECPA 2015
EditorsJohn V. Stafford
PublisherWageningen Academic Publishers
Pages67-73
Number of pages7
ISBN (Electronic)9789086862672
StatePublished - Jan 1 2015
Event10th European Conference on Precision Agriculture, ECPA 2015 - Tel-Aviv, Israel
Duration: Jul 12 2015Jul 16 2015

Other

Other10th European Conference on Precision Agriculture, ECPA 2015
CountryIsrael
CityTel-Aviv
Period7/12/157/16/15

Keywords

  • Active crop canopy sensor
  • Crop circle sensor
  • Greenseeker sensor
  • In-season nitrogen management
  • Site-specific nitrogen management

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  • Cite this

    Cao, Q., Miao, Y., Li, F., & Lu, D. (2015). Precision nitrogen management strategy for winter wheat in the North China Plain based on an active canopy sensor. In J. V. Stafford (Ed.), Precision Agriculture 2015 - Papers Presented at the 10th European Conference on Precision Agriculture, ECPA 2015 (pp. 67-73). Wageningen Academic Publishers.