why do I get black spots on the bottom of my tomatoes when they ripen?

why do I get black spots on the bottom of my tomatoes when they ripen?
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1 Answer

Answer :

soil is lacking sufficient calcium
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Last Answer : A. Blossom-end rot is caused by improper moisture conditions. This results in a calcium deficiency in the developing fruit. Make sure the soil pH is above 6.0. Maintain uniform soil moisture as the fruit grows. Remove affected fruit. When possible, use calcium nitrate to fertilize the plants.

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Last Answer : They most likely have a condition called Blossom End Rot, caused by uneven watering and calcium deficiency. I suggest you talk with your county extension agent to get suggestions as to what you can do to alleviate this problem.

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Last Answer : too much rain

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Last Answer : too much rain..........take them off when they become orange and put them on the porch unwashed to finish ripening.