In article 736d3c4c-6c62-473a-aa3a-
, says...
On May 12, 8:34?pm, "J. & J. Doe" wrote:
Not all tomatoes
do well in greenhouses even with the proper nutrition.

Damn! I wish I'd known that. The only reason I got the greenhoouse
was to grow tomatoes! I don't think that it's a nutrient problem.
The soil is that "garden" soil that is supposed to be pre-fertilized
for an entire season.

I think this was posted in the newsgroup a little while back...

http://www.hbci.com/~wenonah/min-def/tomatoes.htm

Of course, it may be hard to separate the smell of cat urine from the
smell of tomato vine, but that would be a telltale.

What about removing some of the soil from the pot, taking it away and
seeing if it has that well used litter smell.