Here’s a great tip from neighbors who moved away but left some of their master gardening knowledge behind. They had a wonderful vegetable garden and knew all the tricks. Here’s one for growing more fruit on your tomato plants.
When you have extra eggshells, dry them out on tin foil in the oven for about 5, 10 minutes @300, cool and crush or puree into powder to use as the perfect fertilizer for when you plant your tomato seedlings. Eggshells are made up mostly of calcium carbonate, which is the main nutrient for tomato plants, and the key to abundant tomato fruits. (Yes, they are fruits.)
I have started my bag of eggshells even though I won’t plant until end of May. When you dig the holes for your seedlings, sprinkle in some of your crushed or pureed eggshells with compost and plant your seedling. (Another trick is to bury the first set of leaves when you plant so the seedling won’t get as leggy. Just dig a deeper hole.)
You can keep extra eggshells to sprinkle around the plants every few weeks as they grow.