1. College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271018, Shandong, P. R. China
2. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
3. Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, P. R. China
4. National Engineering Research Centre for Efficient Utilization of Soil and Fertilizer, Resources College of Resources and Environment, Shandong Agricultural University, Tai’an 271018, Shandong, P. R. China