I’m not going to bother watching the video, I have better things to do with my time. But i already have a passing familiarity with Savory’s work. As other have alluded to, it’s basically just rotational/cell grazing, with a bit of added stuff. And as BrainGlutton’s link notes, cell grazing itself is a highly controversial.
In simple terms, cell grazing is a system where livestock are confined to small areas of pastures at very high densities for short periods of time, and them moved on to another small area. The rational behind this is that grazing animals are naturally nomadic. They move into an area, eat all the grass and then move on. That supposedly gives the grass time to recover before they return. In contrast, modern western grazing confines animals to relatively large areas year round. As a result the animals will keep grazing the grass constantly, never giving it a chance to recover.
This all sounds fine. The problem twofold. Firstly, the the underlying assumptions are largely bollocks. While some grazing animals are naturally nomadic, most are not. You can’t find any natural area of grassland on the planet that doesn’t have a year-round population of large grazing animals. Secondly the experimental evidence doesn’t show any evidence that cell grazing actually reduces grazing pressure or produces more vigourous grass growth.
That’s not to say that cell grazing never work. It indisputably does work in a lot of cases. I have personally seen almost miraculous effects due to the adoption of cell grazing: 25% weight gains, almost complete dominance of pasture by desirable species, huge improvements in pasture yield and ground cover. So their is no doubt that adopting cell grazing can improve productivity and sustainability, which is why it has so many adherents. And I have no reason to doubt that Savory’s method works at least as well.
The issue is *why *it works, or more accurately why it mostly doesn’t work under experimental conditions.
As far as anyone can tell, cell grazing works because it forces graziers to carefully manage their pasture and livestock, and that means they have to carefully monitor their pasture and livestock. The sad fact is that most broad-acre graziers muster their cattle twice a year, and completely ignore them the rest of the time. A shitload of research shows that most graziers have only the vaguest idea about the condition of the livestock except for the few days when they are being yarded, and most have no idea what species of grass are in their pasture, or could even give an approximate estimate of the tonnage of feed available to their livestock.
Because cell grazing uses small paddocks that the stock have to be moved between on a weekly to monthly basis, the pasture and the livestock have to be monitored closely and constantly so the stock can be shifted as soon as the feed is depleted. It is that constant monitoring of the behaviour of the stock and the condition of the pasture that produces the results. As the pasture becomes depleted, the area is destocked. If all the areas are depleted, the livestock are sold or moved to other locations. If there is standing feed, but the animals are losing condition, supplements or parasite are provided until weight gain is restored. In short, the system works because it forces best practice pasture management.
And that is also why cell grazing fails to produce results under experimental conditions. Experimental layouts always control for other variables. So the non-cell system will have exactly the same stocking rates, feed supplements and so forth as the cell system. So while the cell system often works in the real world because it forces a grazier tio change from poor management to best-practice, it never works under experimental conditions because all experimental plots will be under exactly the same management practice.
Which brings us back to the Savory’s claims. They are probably true, as far as they go. They almost certainly do lead to a radical improvement of pasture condition, improved soil cover with reduced runoff and reduced erosion and so on an so forth. I have no reason to doubt that.
The point to bear in mind is that the exact same results could probably be obtained if the graziers had simply gone out once a week and walked around their paddocks to see how it’s holding up and to see how the livestock look. Literally, that’s it. No need for the huge expense of additional fencing and water points and continual stock movement that Savory’s system requires. He could achieve exactly the same results simply by simply walking around with his eyes open.
And because it’s cheaper, that system would be much more widely adopted.
There’s no doubt that most of the world’s grassland’s are degraded, and there’s no doubt that is mostly due to shitty management practices. And I have no doubt that Savory’s technique could rapidly alleviate most of that degradation. The criticism stems form the fact that exactly the same results could be achieved much more cheaply and e easily by following the management guidelines that ecologists have been promoting for at least 60 years.
Of course if people can be convinced to actually follow Savory’s methods, then that alone makes them invaluable. People clearly won’t follow the scientifically based advice of extensionists. We have half a century of proof of that. So if Savory’s system is more palatable to landholders, regardless of why, then it should be encouraged.
It’s a bit like the Atkins diet in that regard. All the evidence proves that the Atkins diet doesn’t have anything to do with biochemistry. It’s simply that people on the Atkins diet consume fewer calories, and any weight loss is entirely due to the fewer calories consumed. That doesn’t mean that it is useless. Quiet the opposite. The fact the people on the diet do consume fewer calories when they won’t on other diets makes it invaluable.
And it’s the same with Savory’s technique. It almost certainly does not work for the reasons he says it does. But it does work by forcing people to do the right thing for the wrong reasons. But if it leads to people doing the right thing, when we know that simply telling them what is right convince them to do it, the I say more power to Savory.
Maybe he’s just a good salesman. Maybe his technique has some psychological appeal that walking around a paddock in the hot sun doesn’t. But whatever the reason, if he can get people to do the right thing, the outcome is the same. We’ve tried educating graziers for over half a century, and it doesn’t work. If ignorance and mumbo jumbo *do *work, then that’s all we’ve got left in our toolkit.