1. Shandong Agricultural University National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources National Engineering &Technology Research Center for Slow and Controlled Release Fertilizers College of Resources and Environment 271018 Tai'an, Shandong China
2. Linyi University Shandong Provincial Key Laboratory of Water & Soil Conservation and Environmental Protection 276000 Linyi, Shandong China
3. Kingenta Ecological Engineering Group Co., Ltd. State Key Laboratory of Nutrition Resources Integrated Utilization 276700 Linshu, Shandong China