Overapplication of any nutrient resource is to be avoided. Explain the different negative consequences resulting from overapplication of P as compared to over application of K. Which is likely to be a...

Overapplication of any nutrient resource is to be avoided. Explain the different negative consequences resulting from overapplication of P as compared to over application of K.

Which is likely to be a better indicator of acidification stress on forest trees, a molar ratio of Ca/Al in leaf tissue less than 1.0 or a molar ratio of Ca/Mn less than 1.0 in the leaf tissue? Why?