Black spot on bottom of tomatoes

[andreask0]

Hi, i have these tomatoes that have these black spots on the bottom part ,is it because of a lack of calcium or something else? Is there a (preferrably biological) way to fix the rest of them as soon as possible?Thank you

 

[Chuck]

Hi, i have these tomatoes that have these black spots on the bottom part ,is it because of a lack of calcium or something else? Is there a (preferrably biological) way to fix the rest of them as soon as possible?Thank you

Yep, that's classic Blossom End Rot. Many gardeners swear it is caused by improper/irregular watering. Others swear it is caused by a lack of calcium in the soil. Others say it is caused by the plants' inability to uptake calcium. It may very well be that all are correct. All I can say with 100% certainty is that in my alkaline soil, with an overabundance of calcium, that 1/2 cup+ of epsom salts at the time of planting or later around the base of the plant will stop BER from forming or will stop BER after it shows. As I said, it may work in your soil or it may not, but in mine it works 100% of the time.

 

[andreask0]

Thanks for yr quick reply.
Can i use marble powder instead of Epsom salts ?

 

[Chuck]

Thanks for yr quick reply.
Can i use marble powder instead of Epsom salts ?

NO. The two aren't even similar. Marble dust is calcuim carbonate and epsom salts is magnesium sulfate. If your soil is lacking in calcium it might be of benefit

 

[andreask0]

ok, i'll follow yr advise.
Thanks again.

 

[headfullofbees]

Magnesium helps the uptake of Calcium. The quantity of calcium required is so low that it is extremely unlikely that your soil will be deficient.
Chuck is absolutely right.

 

[H&R Glock]

Super phosphate is the cure.