Evaluating different integrated precision rice management strategies in Northeast China

Hongye Wang, Yuxin Miao, Guangming Zhao, Yinkun Yao, Raj Khosla

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

2 Scopus citations

Abstract

The objective of this research was to evaluate three integrated precision rice (Oryza sativa L.) management strategies for grain yield and N use efficiencies in Northeast China against farmer practice. Two field experiments were conducted in 2011 in Jiansanjiang, Heilongjiang Province, China, involving five treatments and two crop varieties (Kongyu 131 and Longjing 21). The results indicated that regional optimum rice management(RORM), chlorophyll meter-based precision rice management (CM-PRM) and GreenSeeker sensor-based precision rice management (GS-PRM) systems increased grain yield by 8-11% over farmer practice, and increased N recovery efficiency by 12% - 34%. The GS-PRM system has potential to further increase N recovery efficiency by 13-15% over the RORM systems. The RORM system also performed quite well, and is easier to be adopted by farmers. More studies are needed to further evaluate these management systems under diverse on-farm and weather conditions.

Original languageEnglish (US)
Title of host publication2013 2nd International Conference on Agro-Geoinformatics
Subtitle of host publicationInformation for Sustainable Agriculture, Agro-Geoinformatics 2013
Pages419-422
Number of pages4
DOIs
StatePublished - Dec 6 2013
Event2013 2nd International Conference on Agro-Geoinformatics: Information for Sustainable Agriculture, Agro-Geoinformatics 2013 - Fairfax, VA, United States
Duration: Aug 12 2013Aug 16 2013

Publication series

Name2013 2nd International Conference on Agro-Geoinformatics: Information for Sustainable Agriculture, Agro-Geoinformatics 2013

Other

Other2013 2nd International Conference on Agro-Geoinformatics: Information for Sustainable Agriculture, Agro-Geoinformatics 2013
CountryUnited States
CityFairfax, VA
Period8/12/138/16/13

Keywords

  • Chlorophyll meter
  • GreenSeeker crop sensor
  • Integrated rice management
  • Precision rice management

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