In article ,
Kay Lancaster wrote:

On Sat, 9 Jun 2007 21:12:59 +1200, George.com wrote:
A question for people in the know. What is the best time to apply P & K
during a plants growing cycle?


Typically applied pre-planting to the expected root zone. But save yourself
the trouble of applying too much (many soils have plenty) -- get a
soil test. Saves water pollution, too.

Kay

Glacial soils tend to have very little. The upper midwest enjoyed
extensive glaciation in the recent past. Like Kay says, do a soil
test. (And shop around for one. The price can vary considerably.)

Fine Gardening carried an article on soil testing, written by
a soil scientist, last year. It might be on their website:
www.finegardening.com The article gave good instructions on
how to gather and prepare your sample.

Jan