Kio Starfield wrote:Could something like this work if given enough time?
S Bengi wrote:Biochar works well for tropical/sandy soils.
That said I would concentrate the 'mulch' vs spreading it too thin.
Partially Sunken hugelculture sounds wonderful.
But more than anything else I like the idea of planting alot of super tall corn and sunflower plants, to grow your own mulch.
S Bengi wrote:Growing your own mulch is growing 10ft corn every 60days and then chop drying them and then adding that as mulch even better would be to 'half-burn it' to make biochar. That much corm will make alot of mulch. you can probaly do 5sets per year. In no time your soil could have 20% carbon with that bio-char.
1inch mulch over your site will disappear super quick so you might not be able to hold enough water+mineral+soil life to make it self-sustaining enough. That is why making it around 7inches thick sounds supper.
I like partially sunken hugelculture because it buries the carbon deeper in the soil, and if you don't have enough water during the dry season, the root can access that stored water. But it it also above soil level so during the wet season the roots have have dry feet
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