Vietnam is an agricultural country where rice and maize are the two most important cereal crops. Recently, the proportion of high-tech agricultural products has increased; however, output quality and quantity have not reached the expectations. There are many possible reasons, one of which is that farmers lack skill, experience, and knowledge to receive and generate information sources. This study estimated the technical efficiency levels and identified the information factors that influence the technical inefficiency of crop farmers in the northwest highland of Vietnam using farm-level data. The results show that there are significant opportunities to increase technical inefficiency and no farm has full technical efficiency. Agricultural information from printed materials and frequent watching of television were significantly and negatively related to technical inefficiency. This indicates that if farmers read more agricultural information from printed materials and watch television related to social life at appropriate times, the technical efficiency of crop farms would increase. Based on the results, some suggestion are proposed to optimize crop-farm technical efficiency and increase the effectiveness of using information sources.
