Additionally: Digging trenches and planting at the appropriate time have long been known to be useful in these arid places. https://permaculturenews.org/2008/1

Additionally: Digging trenches and planting at the appropriate time have long been known to be useful in these arid places. https://permaculturenews.org/2008/11/19/desert-ways/ https://permaculturenews.org/2008/11/19/desert-ways/