Acta Agrestia Sinica
Effects of Cross Sowing at Different Times on Grassland Productivity in the Third Year of Planting in Northwest Hebei
LI Jun, DU Jun-ying, YANG Li, SONG Lian-zhao, LI Xin-yang, XUE Zhu-lin, LIU Gui-he
Acta Agrestia Sinica . 2022, (8): 2167 -2172 .  DOI: 10.11733/j.issn.1007-0435.2022.08.028