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Produce => Edible Plants => Topic started by: Beer_Belly on September 12, 2003, 22:54:54

Title: Soil in greenhouses / cold frames
Post by: Beer_Belly on September 12, 2003, 22:54:54
regarding the whole crop rotation thing (which still puzzles me - see my earlier post) What happens with greenhouses etc - do you need to remove the soil and swap it with some from somewhere else ?
Title: Re: Soil in greenhouses / cold frames
Post by: tim on September 12, 2003, 23:10:26
It shouldn't puzzle you - read a good book. But greenhouse soil - good question - one that is seldom asked.

1. Grow different plants each year.

2. Grow plants with a built-in disease resistance.

3. Do what you do and wait for trouble to strike before changing things. A LOT of effort.

4. Sterilise the soil each year.

5. Use gro-bags or ring culture? - Tim
Title: Re: Soil in greenhouses / cold frames
Post by: Beer_Belly on September 13, 2003, 16:29:46
Thanks for thoses tips - how do you go about sterilising the soil ?  Chemically ? remember I'm trying to be organic :-)
Title: Re: Soil in greenhouses / cold frames
Post by: tim on September 13, 2003, 19:40:25
Jeyes Fluid, or Armillatox - now available again under a new name. I'm  not the authority, but I regard them as 'organic'.

Everything of ours is sterilised annually with the latter. I have plenty here if you're passing!!  - Tim
Title: Re: Soil in greenhouses / cold frames
Post by: tim on September 14, 2003, 21:40:35
just to add to that - I note that HDRA make no mention of sterilising the soil - merely that there should be a 4 year rotation (and toms, aubs and peppers all count as one family) - or one can 'cover the soil with black plastic and grow in pots or bags for a year'.  Tim
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