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Re:Investors say agroforestry is climate friendly and also p... by mikepurvis on Friday July 10, 2020 @04:33PM (#23796113)
Biointensive gardening and earth-centric/organic/whatever methods definitely have their place, but it would be a huge shift to grow everything that way, and it's far from clear that it's even workable for the volumes needed for the big staple crops like corn, wheat, and soy.

The idea of bringing companion planting, cover cropping, etc to conventional agriculture by way of increased automation is a fascinating one, in part because of how pragmatic it is. It could allow those methods to scale much more than they do today, and allow a conventional farmer to adopt them incrementally, realizing the savings piecemeal (better yield here, reduced fertilizer use there, etc). This is going to be way more realistic than trying to reboot the whole system from scratch, especially to a method that requires 100x the labour inputs.

And it's definitely closer to the land than the other high tech direction, which is closed loop indoor hydroponic/aquaponic system— essentially doubling down on the monoculture approach by isolating the whole operation even more from unwanted natural inputs (pests, weather, and so on).

Re:Investors say agroforestry is climate friendly and also p... by mikeg8 on Friday July 10, 2020 @05:19PM (#23796603)
Thanks for your great comment, it's helping further the discussion and my own understanding.

> but it would be a huge shift to grow everything that way, and it's far from clear that it's even workable for the volumes needed for the big staple crops like corn, wheat, and soy.

Agree completely. But I think a huge shift is very much needed, and this shift may decrease our dependencies on staples like corn, much of which goes to cattle feed and fuel uses when we have other, more ecological methods like pastured beef, solar etc. https://www.scientificamerican.com/article/time-to-rethink-c...

RE 2nd paragraph, also totally agree with, minus the "100x labor inputs". If done properly, bio-mimicry in Ag should decrease labor inputs as you leverage the advantages of natural plant/soil nutrient cycling, reduced watering and tillage from cover cropping and soil development, reduction of pesticide application by attracting animal/insect diversity etc.

From my understanding, "conventional" farming (I say ironically as we've really only been practicing these methods for ~60-70 years vs millennia of small scale farming that is the real "conventional"methods lol) has forced us to increase labor inputs - adding fertilizers, pesticides, annual tillage, managing irrigation systems - these are all things that can be eliminated, if the proper systems are put in place.

Gabe Browns book, Dirt to Soil was an eye opening read. Cheers.

Re:Investors say agroforestry is climate friendly and also p... by hosh on Friday July 10, 2020 @06:58PM (#23797580)
We don't necessarily have to scale this. I think a better approach is to build decentralized food systems using these practices. At the neighborhood or household level, these practices are very practical. It does not require rebooting the whole system. It does not require venture capital, because you're not trying to make a big return. It does not require waiting for conventional farmers to change their practice.
Re:Investors say agroforestry is climate friendly and also p... by mikepurvis on Friday July 10, 2020 @08:24PM (#23798203)
That process is under way, somewhat— I have several CSAs serving my city, and two major farmers markets. But relevant to note: all of those outfits are focused on fruits and vegetables, where the impact of "fresh" is the greatest. All of the corn being grown around me is sweet corn for immediate consumption, or for animal feed.

No one is growing wheat on a small scale, much less in the kind of quantities that would allow me to have several dozen kg with which to bake through the winter. Same with legumes, as far as I know.

In any case, I'm not trying to impose a solution here. Quite the opposite; the food system is a large problem that requires multiple irons in the fire, and that may well look like reinventing large-scale cropping to be less destructive and chemical-intense, while simultaneously moving fruit and veg production closer to home with smaller scale operations.

Re:Investors say agroforestry is climate friendly and also p... by hosh on Saturday July 11, 2020 @03:12AM (#23800223)
Legumes are interesting in that there are many crops that can be companion planted. Can they get to quantities that can sustain a family? I don’t know. But pole beans are known to grow better as a companion plant to corn than by themselves. There are many other types of legumes — the Mesquite tree here in my neck of the woods (lower Sonoran) is a nitrogen fixer, with some varieties producing bean like pods that can be harvested. (They require a mill to get the full use pf them).

My point is that there is a lot more options out there, and what is possible is a lot greater than people think.

As far as wheat goes, I have not heard much from permaculturists doing that. I hear more about cultivating amaranth and quinoa as nutritionally dense pseudo grains.

Generally, I also hear a lot more about winter squashes. That follows the design principle of “Catch and Store Energy”, with squashes being a very durable store of sunlight and nutrients. Speghetti squashes can be made into pasta-like noodles. Not so much with bread.

Cauliflower can be processed to make a kind of flour that can be used in a lot of baking. Again, I don’t know the yields that can sustain a family. Depending on where you are, they are a fall crop. (They are a winter crop for the lower Sonoran, zone 9b/10). Probably grown in succession so that they can be had for a while. Maybe the flour can be stored over winter.

There are also sunchokes. These are in the sunflower family, and are considered invasive. They are very hardy, and their tubers can be harvested during a time when few other plants can be harvested. Their flowers open late season, and also nourish pollinators at a time when they don’t have a whole lot of options. They will grow in poor, depleted soil, and will probably edge out other pioneer plants. So not bread for the winter, but a good source of calories nonetheless.

Maybe that will the challenge my wife presents to me: finding the a good set of crops that would allow her to bake.