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colordropstoday at 6:42 AM3 repliesview on HN

Always lettuce. If someone can figure out how to grow something with a dense and full nutrient profile then there might be something to vertical farms.


Replies

jillesvangurptoday at 7:57 AM

The challenge is finding something that is energy dense, that grows quickly, and has a high value to justify the length of trouble you have to go through. Things like potatoes, grains, rice, etc. Are relatively low value and they don't grow that quick.

Potatoes especially don't like to be submerged. But otherwise they are not that hard to grow. A simple grow bag will do. That's true for a lot of root vegetables and tubers. For vegetables like that, greenhouses are more common.

With rice and grains, they grow well enough in hydroponics but you just need an enormous amount of area to get to interesting amounts. Also the growing season for that is quite long. Hydroponics favor things that you can harvest in weeks rather than say 2-3 times per year.

odie5533today at 7:18 AM

I grow kale, mustard greens, herbs, and sprouts. I'm not looking to erase my need for produce. I just want to always have some fresh staples. Easier to pull off a few sprigs of parsley or some basil than it is to buy those little packs all the time.

defrosttoday at 6:51 AM

Dyson is doing strawberries

* https://dysonfarming.com/strawberries/

* https://www.youtube.com/watch?v=FA6BCIWPJ30

The rationale there is a combo of profit (from off season strawberries) and mark-up possible from unique branding (Dyson) and social fuzzies (eco-friendly, etc (regardless of cold economics)).