Tillage is killing organisms living in the soil, which are crucial for fertility and resistance to erosion. Permacultures have interesting techniques, like cove

Tillage is killing organisms living in the soil, which are crucial for fertility and resistance to erosion. Permacultures have interesting techniques, like covering the soil to let weeds die and enrich the soil at the same time, not sure how those techniques can scale, even if they are highly productive. There are also the use of livestocks: https://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_reverse_climate_change?language=en https://www.ted.com/talks/allan_savory_how_to_green_the_worl... other links: https://en.wikipedia.org/wiki/Topsoil#Erosion https://en.wikipedia.org/wiki/Topsoil#Erosion http://www.fao.org/3/a0100e/a0100e07.htm http://www.fao.org/3/a0100e/a0100e07.htm http://www.fao.org/3/t0389e/t0389e02.htm http://www.fao.org/3/t0389e/t0389e02.htm