Help With Growing Seeds

I have a relative who works for a company that produces vast numbers of plants for the Lincolnshire brassica fields.
All the plants are produced in enormous greenhouses and he rides around on a Segway.
Automatic machines fill the modules with growing media, add one pelleted seed, water the trays and place the trays under lights, the trays are moved regularly along the greenhouse towards the dispatch area. The only human intervention is in the dispatch area where any non germinated modules are replaced with a plant. The trays are then stacked onto trolleys, dispatched to farms where planting machines take the trays and plant the plants automatically with a shot of fertiliser at the root.
Forty plus years ago plants were grown in nursery beds, pulled by hand, counted into boxes typically 100, 500 or a 1000 often depending on the plant size. They boxes were then taken to the field and a gang of 4 or 6 people would be sat on a planter, taking the plants placing them in a wheel that would drop the plant into a furrow which was closed by a pair of wheels under the seats.

 

I am very tempted to get one myself, are you saying you are going to put more than one seed per plug then if so do you pull the weakest out and just let the one strong one grow, so avoids having any blank plugs? What sort of medium do you use to grow?

I do think it is an ingenious invention. How long do you think it will take between planting the seed to get a plug?

 

Have you seen this guy, for sale for £1600. What would you use for other than growing some illegal class B’s?

https://www.amazon.co.uk/dp/B0C66Z1...=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&th=1

I imagine these are bought in the horticultural scientific community like Wesley, but come on you ain’t going to marigolds in this?

 

Its mainly a question of capacity; a means of getting many things started all at once, and then growing them to a stage which can be moved on to shelter pending the arrival of more ameniable weather which permits planting out can be done.I have an electric propagator(to 26 deg) which holds ten half trays at a pinch, a glazed grow-bed with under heat and grolightsthat maintains 15 deg C and two small 8x6 greenhouses without heat, plus two cold frames for hardening off