Changing Characteristics of Major Ecological Factor in Semi- underground Solar-greenhouse at Shouguang, Shandong Province
YU Jun-hui1, DONG Xu-bing1, WEI Jia-peng2, AI Xi-zhen1*
1State Key Laboratory of Crop Biology, Ministry of Agriculture, Key Laboratory of Horticultural Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Taian 271018, Shandong, China; 2Seedlings Limited Company of New Century in Shouguang City, Shouguang 262702, Shandong, China