Now you have my attention, I spent 20 years in Navy Engine Rooms so seawater heat exchangers played a large part in my life. Are you already doing this? Over what area? My experience tells me that to remove heat over a large area would require a large infrastructure and be resource hungry to run, please tell us more. Do you practise crop rotation? How do you control disease? I imagine that 4 crops a year would require large nutrient inputs so as not to deplete the soil, how do you achieve this? David C
----- Original Message ----- From: "panamabob" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, 10 January 2002 4:09 AM Subject: Re: Hydoponic BD 2 > haha! mulching is good David! the cold system however cools the soil down > to 40's with air temp in 80's...a bit more than mulchings shade effect :-) > > cooling the soil also seems to switch on and off signals to the plant so it > goes into turbo charge mood. With temperate climate plants it allows 4 > growing seasons per year in the tropics. its common to see a pear tree with > fruit after only a year or so of age.( but 4 years in plant time). same with > grape clusters; bunches in relatively short time! > > to feed these growths and provide a healthful and sustainable yield you can > see my interest in nutrients and what BD may possibly contribute. > > this can do two things; require less rainforest space for food growing and > provide a monetary stability for the country folk. > > bob > > bob > >
