Well I just started a search on this issue. and found this. Wish I had the day off to really search more.
Plants that don’t like growing in soils that contain lime are called ericaceous plants.
As far as I can tell Tobacco does not realty fall into ericaceous catagory which includes some plants like Potato, Strawberry, Raspberry and Grapes.Tomatoes fall in the next highest group for soils of 6.5 to 7.5 pH
. The information continues with the followingIf you try growing ericaceous plants in alkaline or limey soils, they start to produce yellow leaves – a condition known as lime-induced chlorosis, don’t grow or flower well and usually, finally die. The main reason for this is that they need plenty of iron and other soil nutrients that become insoluble or ‘locked up’ in the soil at high pH, so the plants can’t absorb them.
one solution it offers is this which I already know and is the most common answer here. just a variation of container growing.
f your soil is alkaline clay, you could try digging a large hole, lining it with plastic sheeting, making some drainage holes in the plastic, and then filling with a lime-free soil. However, this doesn’t always work very well and is a bit of a risk.
The next suggestion is outright container growing.
Finally it says this about fertilizing.
The other thing you need to ensure for fabulous, healthy growth is to feed the plants with a suitable fertilizer. Whereas many plants can be fed with a general-purpose fertilizer, ericaceous plants really do much better if fed with a specific ericaceous plant fertilizer. This can either be a
granular feed or a
liquid feed – whichever you prefer. These contains all the specific nutrients needed for great green leaves and masses of fabulous flowers.
This last comment may give some credibility to the idea of fertilizing with a liquid fertilizer throughout the growing period. I am just not sure if it was referring to fertilizing plants grown in containers or if it was suggesting this as a way to grow plants in the soil.
Anyway my thinking is heading toward the idea that if the soil locks up the nutrients. woudl it still be possible for us to give them a weekly shot of nutrients and still expect the plants to benefit from them? I would plan to fertilize only up to the point they begin to bud. then I want them to starve out and die anyway.