1. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
2. College of Land Science and Technology, China Agricultural University, Beijing 100083, China
3. Federal Research Centre of Biological Systems and Agro-Technologies of the Russian Academy of Sciences, 9 Yanvarya 29, 460000 Orenburg, Russia
4. Department of Mathematics, Chelyabinsk State University, 454001 Chelyabinsk, Russia
5. Department of Land, Environment, Agriculture and Forestry, University of Padova, 35020 Legnaro, Italy
6. Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, 35020 Legnaro, Italy