深松对不同种植密度下春玉米冠层光合特性及产量的影响
王春雷
Effects of soil subsoiling on canopy photosynthetic characteristics and yield of spring maize under different planting densities
WANG Chunlei
北方农业学报 . 2020, (6): 22 -29 .  DOI: 10.12190/j.issn.2096-1197.2020.06.04