Yield Promoting Effect of Early Sowing of Summer Maize at Appropriate Time in Northern North China
Sanxue REN, Guangsheng ZHOU, Huarong ZHAO, Xiaoli TIAN, Jinjian GENG
Acta Agric Boreali Sin . 2023, (6): 81 -93 .  DOI: 10.7668/hbnxb.20194166