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One thing I don't see him cover is how to deal with the "ecosystem" which will form around, and eventually consume, a fully organic permaculture farm. One of th
by snovv_crash 10y ago
One thing I don't see him cover is how to deal with the "ecosystem" which will form around, and eventually consume, a fully organic permaculture farm. One of the big advantages of monoculture is that you usually only need to protect against a single class of pests in a specific area.
- odelomez 10y agoThe ecosystem can be of great advantage, different crops can help themselves in warding off the intruders. As an example I mix tomato plants with french marigold and basil. Some farmers have built impressive ecosystem where everything makes sense, type of plant, seasons, minerals, nitrogen, etc
- kristopolous 10y agoA single point of failure is an advantage?
- deleted 10y ago[deleted]
- TeMPOraL 10y agoYes? As a king, what would you prefer - to defend against one big kingdom that wants all of your land, or to defend against three big kingdoms that each want a third of your land? When number of points of failure trade off against your attack surface, you can't just say "more PoFs is better".
- kristopolous 10y agoThat analogy isn't correct. You've made it 1 thing against 1 versus 1 against 3. If we were to use that analogy, a more accurate metric would be either having 1 large centralized kingdom or 100 small, autonomous, independent kingdoms that each have fundamentally different weaknesses. If one fails, you still have 99. But even that fails to understand the dynamic of biological systems. There's mutually beneficial, symbiotic relationships between crops and many creatures (bees, worms, etc). Presenting it as always in conflict is inaccurate. The fundamentally different approach is to not look at pest solutions through a genocidal chemical warfare lens but instead to figure out how to maintain a sustainable relationship and have all of nature working for you instead of setting most of it as against you.
- TeMPOraL 10y agoMy answer was to your "SPoF is an advantage" comment as a general question. Maybe unnecessarily pedantic of me (I need my morning coffee ;)). In context of sustainable ecosystems, I agree with your detailed explanation. Controlling and maintaining a complex system of feedback loops (that we still don't completely understand) is a very difficult task though, so I'm not surprised that currently the most crude methods (genocidal chemical warfare) are also the cheapest / most efficient. I wonder if this isn't a good field to benefit from computational models though - from tools to design, predict and manage natural feedback loops in agriculture. I don't know, maybe it's already a thing in the industry?
- kristopolous 10y agoEcoinformatics and Computational Ecology is what you're looking for.
- TeMPOraL 10y agoThanks! Will add to my "reading/random" sublist :).
- neutralid 10y ago> Controlling and maintaining a complex system of feedback loops (that we still don't completely understand) is a very difficult task though, so I'm not surprised that currently the most crude methods (genocidal chemical warfare) are also the cheapest / most efficient. Blanket chemical warfare is like feedback linearization. Wasteful in terms of energy and has other flaws associated with stability. There is a better approach, e.g., passivity based control, which requires understanding the underlying nonlinear dynamical system. Interestingly this has been the same problem in medicine. However, there are more nuanced control-oriented medical techniques being developed (need better observers and actuating mechanisms).
- D_Alex 10y agoThe problem with monoculture is the you have a potential for a complete and utter failure. Ant it is not really "single-point", there are numerous mechanisms by which crops will fail.
- geomark 10y agoI've dabbled a bit with permaculture while reading a quite a bit about it. They talk about combining plants into a "botantical guild" such that pests are deterred or controlled in a way that yields are maintained. I've not been successful with it. I live in the tropics and pests are ferocious here, much more so than where I lived in the US. The only success I've had is with low yield native plants.
- jeromenerf 10y agoThis is a common misconception. Every culture faces multiple classes of pests: virii, fungus, bacterias, nematods, insects, rodents, birds... What is good to control a pest can be beneficial to another since they compete for the same resource. In the intensive context of monoculture, losing a battle often means losing the war.
- KaiserPro 10y agoI'd suggest you try it your self. try growing stuff on a city balcony. assuming sun and water, it'll grow really well, due to the urban heat island. However when you get pests, thats it, game over. you've got black fly, and they are never going away(I tried sprays, buying ladybirds, nematoads) Why? because you only have one tiny portion of the ecosystem that is based on pests. Most pests are way down the food pyramid. Now, I moved to an allotment, with a huge range of crops, which has a huge range of pest and predators. I had black fly for a week, and then the ladybirds came. Why? because pests are seasonal, you need broad range of pests to keep the predators in any useful numbers.
- roel_v 10y agoThe seminal work on this topic is 'Edible Forest Gardens' by Jacke and Toensmeier, but there are others that have ecosystem design chapters; for example the books by Martin Crawford (also see his website www.agroforestry.co.uk for literature if you don't want to buy books just for a quick read). The gist of it is that in balanced ecosystems, you have natural remedies against pests; birds against insects for example, or certain plants that repel insects, or plants to combat diseases, or predators that eat insects that distribute diseases. This is the theory; currently there is little evidence (as in, scientifically valid results, not anecdotes) that this works as it's claimed. I'm working on an experimental food forest to test some of these concepts. There are many things I'm very skeptical of, but in the mean time I have an excuse to work outside in the field, so hey...