一、缩行增株，合理密植杂交油葵植株生长整齐，无分枝，叶缘上举，果盘倾斜度小。可采用60厘米等行距或60＋40厘米宽窄行播种，增加田间株数。采用宽窄行播种，土地利用率比传统的70厘米等行距播种提高28％以上。二、适当推迟播期，使油葵开花盛期避开夏季高温正播油葵开花盛 First, the shrinkage by strains, a reasonable close planting Hybrid oil sunflower plants grow neatly, no branches, leaf margin on the move, fruit plate tilt is small. Can be 60 cm spacing or 60 +40 cm wide and narrow row sowing, increase the number of plants in the field. Seeding with wide and narrow lines, the land utilization rate increased by 28% or more compared with the conventional 70 cm line spacing sowing. Second, the appropriate postponed sowing, so that the flowering of oil sunflowers to avoid the summer high-temperature oil sunflowers are Sheng