the questions in your mind have been put up in bits already.. they are the first to come to any person who plans to start into agri. so just browse and read..
to sum up Abhishek, crop selection depends on the farmer.. and yes, so some extend the location of the site. all crops require care, a few require less, others more attention.
if i compare carnation vs capsicum, i would prefer carnations. the practises for both are very different, but growing, i find carnation requires less care and attention when i compare it with capsicum.
carnation requires a bit more investment (sapling is expensive, + it needs metal/plastic grid for support) so thats an additional expense.
i do not have much of an idea about gerbera honestly, you can request Aman to help you with that part.
most of the farmers in nasik have changed their crop from carnation, as the climate is no more suitable.. i mean its getting warm, and carnations need cool climate.
economy wise, i was getting around 14% returns for carnations. and remember, this was my first crop, and i was a beginner, and could have saved a lot. anyways.
risk factor, worst of all, the crop will fail.
carnation sapling is expensive, plus the crop density is high. i had about 40000 plants in a setup of 2000 sq mtr. each plant costed me Rs.11.
then the support grids, normally 4 layers are used. plus the support system for the grid, angels etc. that costed me about 2-2.5 lakh. and now that i have changed the crop, those grids are scrap.
market demand for carnations is good. Pune and Mumbai both are good markets for high volume.
Abhishek, if you have the capacity to sustain, and willing to put in sincere efforts, i would suggest you go for carnations.
we can always discuss more indepth about carnations, meanwhile, you can share all that you know about it.