Authors
Yousif Abdelrahman Yousif Abdellah
College of Resources and Environment, Northeast Agricultural University, Harbin, China
Chunyan Li
College of Resources and Environment, Northeast Agricultural University, Harbin, China
© 2020 Yousif Abdelrahman Yousif Abdellah, Chunyan Li, published by National Agricultural and Food Centre
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.