ဤအရာ Video သင်၏ဘာသာစကားတွင်မရှိပါ။, တွင်..ကြည့်ပါ။: English (en),
သို့မဟုတ် ဂူဂယ်ဘာသာပြန်ကိုအသုံးပြုပါ။:  

Sjoerd is a Soil Management Specialist in the Crop Management Extension Group at Penn State University. His work concentrates on sustainable intensification using conservation agriculture. He has helped destitute youth in Kenya start a hay baling business using appropriate technologies and is interested in scaling this effort up.


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ECHO Conference Appropriate Techno...