except at least some rashes really are bad news and this one is entirely spin
Plants basically grow as big as they can, given the nutrients available.
So if you give a plant a manure mix with 10g of N and 1g of Fe, it has *just enough* N and *way more Fe than it could ever possibly need.*
Keep in mind these are *micronutrients,* e.g. by definition they're things that both humans & plants only need a very small amount of.
That's not really a bad thing. Throwing more nutrients on a field than the plants can use tends to cause pollution.
So now plants just have about the same micronutrient levels in their tissue that they actually *need.* Not inflated levels.
That's not how plants work.
If plants are legitimately not getting enough of any one of the several nutrients they need, THEY WON'T GROW
which is really not news. that's literally just crop nutrition 101.
These also concentrate the micronutrients.
Except on a real farm, if plants are growing faster bc of more CO2, we ... just deal w it by giving them more food.
In real life, you know, you fertilize plants to keep up with how much they need. So you don't get those nutrient reductions IRL.
My entire job is "translating research results into actionable on-farm info." Uhhh... this job exists for a reason.
Raw leafy greens.
Cooking destroys oxalic acid & releases the nutrients.
Meanwhile, the nutrient reduction we get from this panicky-sounding soil nutrient issue maxes out at 8%. And is completely eliminated by managing fertility to keep up w plant needs.
This is a scenario known in the crop science as "what the actual frick is wrong w the food press."
It's disappointing that the food press keeps writing about it.
But a lot of food writers just don't know any better, & making readers nervous is good for sales. So they keep writing about it.