在向日葵花期放养蜜蜂,是防止向日葵秕子,提高向日葵产量的一项重要技术措施,而这一点又易被葵农所忽视。 向日葵是一种自花不孕的异花授粉作物,其花粉粒较大,带有粘液,常常粘结在一起,不易被风吹散,即使有少量被风吹散的,也大部分落在叶子或靠近本株的地面上。所以,它主要是由昆虫传粉。 在向日葵田中活动的昆虫很多。笔者曾经在石河子作过观察,上午10～12时昆虫采 The stocking of bees in the sunflower flowering period is an important technological measure to prevent the sunflower seeds from being raised and the yield of the sunflower increased, which is easily overlooked by the sunflower farmers. Sunflower is a self-pollination cross-pollination crops, pollen larger, with mucus, often together, not easy to be blown by the wind, even if a small amount of wind-blown, most of the fall Leaf or near the plant floor. So, it is mainly pollinated by insects. There are many insects in sunflower fields. I have been observed in Shihezi, insect mining at 10 to 12 am