ACKNOWLEDGEMENTS
Funding for this project was provided by the projects of Key subject of
Ningxia province (2018BBF02016), China Agriculture Research System
(CARS-38), Research and Demonstration on Key Technologies of Efficient
Utilization Modern Artificial Grassland (2017BY082), and China
Postdoctoral Science Foundation (2019M660877). We thank LetPub
(www.letpub.com) for its linguistic assistance during the preparation of
this manuscript.