On Feb 9, 3:10 pm, "Walter R." wrote:
I live in Southern California. In anticipation of promised rain, I applied
400 lbs of fertilizer (15-15-15 granules) to the iceplant and shrubs on my 1
acre lot.

The rains did not materialize and there is no rain in sight for the next 2
weeks. Now the fertilizer granules sit on top of the ground. Do the granules
release the nitrogen into the air without exposure to rain? Like
sublimation?

IOW, should I re-apply the fertilizer if and when it looks like rain gain?
For how long is the fertilizer good if left on top of the ground,

--
Walterwww.rationality.net
-

Don't know, but speaking as a chemist, inorganic salts (K and P)
should not sublime.
Organic nitrogen like urea might.
Sounds like you used a lot of fertilizer to me.

Frank