Feb. 20 (UPI) --Soils around the world are running low on potassium, a key nutrient needed for plants to grow. This ultimately means we may not be able to grow enough food for everyone. But it's not ...

Wood ashes don't have to be disposed of. They can actually be useful in your garden, but only if you know how to use them properly and which plants need them.

Potassium deficiency in agricultural soils is a largely unrecognised but potentially significant threat to global food security if left unaddressed, finds new research involving researchers at UCL, ...