“Small-scale organic agriculture is a niche” said Hans-Joachim Preuß, the managing director of GIZ, the largest development aid agency in Germany. Apparently, the future of development is large-scale industrial agriculture and big investment, according to the agenda of GIZ. “Smallscale organic agriculture won’t save the world”, said Hans Braun, director of the CGIAR Research Program on Wheat at CIMMYT, a research and training institution focused on wheat and maize. I wondered, what happened to sustainable agriculture?

The excitement and expectations of the participants of Tropentag about this year’s theme “Future Agriculture: Social-ecological transitions and bio-cultural shifts” didn't flag and were mostly met throughout the week, at least until the last two keynote speakers. Braun suggested further intensification of grain cultivation, as well as greater collaboration with the GIZ. Braun’s statements were reinforced by Preuß, who said organic products were to “only" address a “niche market”.

A team of scientists have added activated charcoal to goats' feed, utilizing the charcoal-laden faeces in attempts to decrease the amount of leaching of nitrogen and carbon in poor performing sandy soils. The results were mostly positive. But what is activated charcoal, why are they feeding it to goats, and how might it benefit soil fertility? (read more)