Climatic Resource and Its Impact on Spring Maize in Qingyang City: Analysis Based on Sowing by Stages
CHE Ke, ZHANG Moucao, ZHANG Junlin, ZHANG Hongni
Chinese Agricultural Science Bulletin . 2022, (24): 80 -85 .  DOI: 10.11924/j.issn.1000-6850.casb2021-0931