Funding for this research was provided by:
Earmarked Fund for Modern Agro-industry Technology Research System (CARS-30-3-02)
fund of Yangzhou Institute of Landscape Science and Engineering (YZYL20180015)
Qing Lan Project of Yangzhou University
Text and Data Mining valid from 2019-05-06
Received: 24 February 2019
Accepted: 30 April 2019
First Online: 6 May 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: This manuscript is new and not being considered elsewhere. All authors have approved the submission of this manuscript.