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Allotment Stuff => The Basics => Topic started by: russweth on April 19, 2011, 18:55:09

Title: Carrot growing medium
Post by: russweth on April 19, 2011, 18:55:09
Last year I tried to grow carrots in the allotment but was unsuccessful due to the roots forking, the soil I have is far too stony.
Suggestions have been made to dig a narrow trench and say 8"-10" depth then fill with either Sand or compost or even a grow bag so the carrots will grow in a stoneless environment, I know the ideal thing would be raised beds filled with good quality top soil with a fine tilth, but what would be the advise of my fellow gardeners be.
Title: Re: Carrot growing medium
Post by: manicscousers on April 19, 2011, 20:30:10
we have a dedicated carrot bed, 18" tall, we fill it each year, usually with leaf mould them m p compost, this year, we've used our own compost with a small amount of m p compost on top, trying to cut down onpeat  :)
some people grow them in old baths, leaf bags, many containers, only way we can do it as ours is very wet, heavy clay ;D
Title: Re: Carrot growing medium
Post by: mickstani on April 19, 2011, 22:31:36
Compost from last years hanging baskets makes this years carrot trench. Works well for me.
Title: Re: Carrot growing medium
Post by: lincsyokel2 on April 19, 2011, 22:45:16
I grow carrots in two old fibreglass baths, filled with multipurpose compost, and a layer of coir at the bottom. Produces fabulous results, no forking, never had carrot fly.

The real experts grow giant carrots singly in 4 inch drain pipes.
Title: Re: Carrot growing medium
Post by: Mr Smith on April 20, 2011, 20:01:49
I do a similar thing with my carrot bed by adding Sharp sand or Compost from our recycling center which I have done this year, stones are a problem but I find that a good working over with the 'Mantis' is the ideal tool to create that fine tilth that carrots need, :)
Title: Re: Carrot growing medium
Post by: powerspade on April 20, 2011, 23:25:23
I grow stump rooted varieties, I take out a trench with my ridger tool and refill it with old compost and sieved soil
Title: Re: Carrot growing medium
Post by: Jeannine on April 21, 2011, 01:31:08
We had an old cuke frame, long and narrow and deep, we filled it with a mixture  of potting soil and sand, it grew wonderful snips and carrotts and never any rust fly as the frame was about three feet high and we only filled it to about 2 feet.

XX Jeannine
Title: Re: Carrot growing medium
Post by: Larkshall on April 21, 2011, 13:28:32
Forked roots can also be caused by planting in ground which has been recently manured.
Title: Re: Carrot growing medium
Post by: chriscross1966 on April 21, 2011, 14:15:28
I think what causes the forking is the change in consistancy, I've seen good carrots grown in pure well rotted manure before adn they've been fine.....

chrisc
Title: Re: Carrot growing medium
Post by: Morris on April 21, 2011, 15:11:42
Quote from: chriscross1966 on April 21, 2011, 14:15:28
I think what causes the forking is the change in consistancy, I've seen good carrots grown in pure well rotted manure before adn they've been fine.....

chrisc

That's interesting. I always thought it was the clods in even well rotted manure that were the problem, like stones, but I haven't any experience to back that up.  It just goes to show that a lot of gardening received wisdom is constantly recycled and rarely questioned.
Title: Re: Carrot growing medium
Post by: jazzidoodle on April 21, 2011, 16:23:32
I have a different problem it takes 2 years to grow a stumpy carrot
Title: Re: Carrot growing medium
Post by: plainleaf on April 22, 2011, 06:24:58
i always use Bernard Laverys soil mix 1/3 soil, 1/3 sand and 1/3 peat moss
Title: Re: Carrot growing medium
Post by: shirlton on April 22, 2011, 06:57:35
Old used compost from the previous year in a V trench or as we are doing this year in a barrel of sand with drills of compost mixture