Darlene, your tomatoes are experiencing a condition called blossom-end rot. Blossom-end rot is caused by either a lack of calcium in the soil or the plant's inability to draw calcium from the soil due to stress. It can also be caused by inconsistent watering, ... • Why do the bottom of tomatoes turn black and soft?
en.allexperts.com/q/Growing-Vegetables-740/Tomatoes-bla... en.allexperts.com/q/Growing-Vegetables-740/Tomatoes-black-bottom.htm
chicken manure, bottom rot, sun water: When you plants are healthy and strong, about 6-8 inches tall you can start to side dress them with fertilizer. I suggest chicken manure if you have it. Tomatoes like lots of sun, water and fertilizer. ... Tomatoes like lots of sun, water and fertilizer. Fertilize about ever 10-15...
en.allexperts.com/q/Growing-Vegetables-740/2008/3/tomat... en.allexperts.com/q/Growing-Vegetables-740/2008/3/tomatoes-21.htm
After all our hard work planting and watering and watching them grow, literally overnight this black rotten spot shows up on our beautiful new tomatoes. There are many reasons that this can happen but primarily it is a lack of calcium in the fruit production cycle and the fruits literally rot from the bottom up.
www.tastefulgarden.com/growing_tomatoes.htm www.tastefulgarden.com/growing_tomatoes.htm
The first symptom of blossom-end rot is a slight discoloration, water-soaked in appearance, occurring at the blossom-end (bottom) of the fruit. This area enlarges rapidly, producing a dark brown or black sunken area.
msucares.com/newsletters/pests/infobytes/19990707.htm
Dark brown or black blotches on the bottom of tomato fruit is a sure sign of blossom-end rot. This problem shows up in many home vegetable gardens across Mississippi each season, but there are steps which can be taken in late winter which will help prevent blossom-end rot in the next crop.
msucares.com/newsletters/pests/infobytes/19990204.htm
Question: Why do the bottom of tomatoes turn black and soft? ... You are describing Blossom End Rot. This is thought to be caused by insufficient calcium. However, don't rush out to by a calcium supplement for your soil. This calcium deficiency is probably caused by irregular watering and ... Blossom End Rot of Tomatoes...
gardening.about.com/od/vegetablepatch/f/BlossomEndRot.h... gardening.about.com/od/vegetablepatch/f/BlossomEndRot.htm
Figure 1. Typical dry, leathery rot on the bottom of tomato fruits with blossom end rot. ... Steven Munk; County Extension Educator, Horticulture; Minnehaha County; Blossom End Rot of Tomatoes and Other Vegetables; Blossom End Rot PLANT DISEASE; MANAGEMENT; IN SOUTH DAKOTA; PLANT DISEASE; MANAGEMENT; IN SOUTH DAKOTA;
agbiopubs.sdstate.edu/articles/FS909.pdf
Blossom end rot is a troublesome disease, familiar to most gardeners who have grown tomatoes. The disease is often prevalent in commercial as well as home garden tomatoes, and severe losses may occur if preventive control measures are not undertaken.
vegetablemdonline.ppath.cornell.edu/factsheets/Tomato_B... vegetablemdonline.ppath.cornell.edu/factsheets/Tomato_BlossRt.htm
The causes of blossom end rot and how to prevent it. ... Blossom end rot is one of the most common problems when growing tomatoes. Brownish-black leathery patches appear on the bottom of your tomatoes. It is also common on peppers, squash, eggplant, and melons. Causes of Blossom End Rot;;
www.suite101.com/article.cfm/edible_gardening_plus/7317... www.suite101.com/article.cfm/edible_gardening_plus/73178
My tomatoes were doing great, but I noticed that some of the green tomatoes had black spots of rot just on the bottom of the tomato - as they ripened, the spots just got bigger. So, now I've got a bunch of ripe tomatoes and all the bottoms are rotten!
forums.gardenweb.com/forums/load/okgard/msg071350132309... forums.gardenweb.com/forums/load/okgard/msg0713501323097.html