Gordon wrote:
So my garden plants did not get good root development last season.
Raddishes took almost 2 months to develop. Carots, took all
summer and were very small. About the size of my finger.

My guess is that my soil is low on pottash. What is the best
way to amend the soil for better root development?

I wouldn't assume that missing one mineral is the cause although it might
be. Broadly carrots are fairly slow growing and do not require heavy
feeding. If fact heavy feeding will contribute to them bifurcating. Before
starting to amend your soil look at the whole situation and how other plants
did in the same soil. The simplest (and probably the first) test you
should do is the pH. Very high or low pH will lock up minerals.

David