甘薯固定光能能力强,是一种可作为生物能源资源的作物。但目前因价格问题尚难以利用,必须大幅度降低其生产费用。为解决这一问题,最好的办法就是采用人工种子进行直播栽培。基于这一观点,美国佛罗里达大学食粮农 Sweet potato has the ability to fix light energy and is a kind of crop that can be used as bio-energy resource. However, due to the fact that the price is still difficult to be used at present, the production cost must be drastically reduced. To solve this problem, the best way is to use artificial seeds for direct seeding cultivation. Based on this view, the University of Florida food farmers