Effect of Spraying Zinc Stage on Grain Yield and Zinc Content of Different Summer Maize Varieties
ZHANG Panpan, QIAO Jiangfang, LI Yuzhen, HE Guanhua, LI Chuan, ZHANG Meiwei, NIU Jun
Journal of Henan Agricultural Sciences . 2022, (6): 22 -31 .  DOI: 10.15933/j.cnki.1004-3268.2022.06.003