ScienceHow can agricultural research help small farmers in poor countries?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience03/18/2013March 18, 2013How can agricultural research help small farmers in poor countries? Our studioguest Professor Harald von Witzke is an agricultural economist at the Humboldt University in Berlin.https://p.dw.com/p/16LdBAdvertisement