Collapse

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This is the place for discussing the potential collapse of modern civilization and the environment.

Collapse, in this context, refers to the significant loss of an established level or complexity towards a much simpler state. It can occur differently within many areas, orderly or chaotically, and be willing or unwilling. It does not necessarily imply human extinction or a singular, global event. Although, the longer the duration, the more it resembles a ‘decline’ instead of collapse.

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Potassium depletion in soil threatens global crop yields (phys.org)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 0 points 7 months ago (1 children)

I do, and read the source paper linked by another commenter as well. The paper itself refers to 'plant available K', which is exchangeable K. That's the potassium dissolved in the water in the soil at the time of the sample being taken, and is not indicative of the total amount of potassium held in the soil. Chasing results from a bad test is a surefire way to get bad results, like starting life saving measures because someone only took a pulse for the split second in between someone's heartbeats.

[–] [email protected] 0 points 7 months ago

The soils in the deficient regions are not just deficient in bioavailable but also in the forms that would need to be liberated for plant use throughout the growing season. just look at the chemistry of a Brazillian or sub-Saharan Oxisol.