I think you mean using the eggshells when you transplant the tomatoes.
Starting in late winter, every time you use an egg in cooking, rinse out the shell and let it dry. Put the dried shells into a paper bag or a bucket. You will need to store them in a rodent-proof container, because mice like to eat them. When it's time to plant the tomatoes outside, crush about a dozen shells and put them in the bottom of each hole.
Tomatoes need a lot of calcium - it prevents blossom end rot on the fruit.
I didn't save my eggshells this year. I just threw a handful of oyster shell into each hole and it seemed to work just fine.
Thanks for the explanation. I like the oyster shell idea. I heard of someone cracking a whole egg when transplanting. It probably has more to do with the calcium, like you said.
I save all of my eggshells from hatching chicks and throw them in a feed sack. In the Spring when its time to start my garden, I take the sack full of eggshells and step on it a bunch of times to crush the shells, then add a few scoops to each plant when planting. I use a scoop of epsom salts, a couple of scoops of egg shells, and a coupleof scoops of chicken poop and my tomatoes plants usually get anywhere between 10 and 12 feet tall and are LOADED with tomatoes. I also shovel extra poop on the plants after they get a few feet tall.
I read on farmers almanac to put a fresh egg under your tomato plant whole not cracked or refrigerated to supply them with the necessary calcium to stop bottom rot..I planted twenty with the eggs under them and planted twenty without the eggs under them in my other garden to see what the difference was.The plants with the eggs under them looks so much better and no bottom rot.The ones that didn't have the eggs had some bottom rot and are looking dead and dry.So I'm a firm believer that the egg trick works.
I have a gf who saves her egg shells and fills the halves with potting soil and starts her seeds in them. It's so cute! Then she plants the whole thing in the ground when it's warm enough.
I do this all the time. I just crack the top of the shell out and clean it out. Put dirt in the shell and plant your seedlings. You can keep them in a carton for holding. I like to put mini plants in mine and display them on the table for purty