The effects of water-fertilizer integration on productivity of winter wheat and water-fertilizer utilizing efficiency under irrigation based on testing soil moistureXiaoshuang Li, Chunlian Zheng, Caiyun Cao, Junyong Ma, Kejiang Li and Hongkai DangE3S Web Conf., 144 (2020) 01007DOI: https://doi.org/10.1051/e3sconf/202014401007