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J.W.308

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Joined
Aug 11, 2002
Messages
2,983
Location
Beaver ,Tn USA
We have 8 tomato plants in the back yard that are loaded . The problem is the tomatoes are turning black on the bottom . What is causing this and how do I fix it
 

TX300mag

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Joined
Nov 10, 2002
Messages
13,607
Location
Crosby, TX
Blossom end rot, like JB said.

It's NORMALLY caused by a calcium imbalance.

There's nothing you can do about the ones already showing. Normally a tablespoon of epsom salt in a gallon of water per plant (every week or two) will keep it under control.

A long term solution would be a soil analysis. It will show you exactly which nutrients are deficient and how to correct it.
 

catman529

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Joined
Nov 10, 2010
Messages
29,472
Location
Franklin TN
Best way to combat is even watering.... It's not so much a calcium deficiency as it is maldistribution of calcium through the fruit. The blossom end does't get enough calcium (usually due to poor watering strategy) and turns black.

Funny thing is, I haven't watered mine in a couple months, but no BER, I guess they have really deep roots. The roma / paste type tomatoes are more prone to BER, and I noticed it on a few of mine earlier in the season but not now.

It could be a deficiency, but you won't know unless you get your soil tested.
 

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