Stef de Hann, from the International Potato Center in Lima works with hundreds of custodians like Esperanza.

来自利马国际马铃薯中心的Stef de Hann与数百名像Esperanza这样的监管人一起工作。

Hann added that the process is much more efficient at turning energy into food than the biological photosynthesis methods, which have taken place for millions of years.

汉恩还说，在将能量转化为食物方面，这一过程比生物光合作用方法效率更高，生物光合作用方法已经存在了数百万年。

Potato custodians have been protecting seeds for centuries. For Step de Hann, valuing traditional agriculture is the only way to ensure bio-diversity will evolve and remain available to future generations.

土豆监管人保护土豆种子的历史已经有几个世纪了。对于Step de Hann来说，重视传统农业是确保生物多样性发展并继续造福于后代的唯一途径。