In the end, add 2 spoonfuls of an organic NPK fertilizer, high in nitrogen, phosphorus and potassium nutrients, in a 4-6-3 ratio.

Then, trim the lower leaves on the stem, and cover the hole with the first layer of soil. Then, add the seedling, but make sure the leaves are above the soil level.  Spray the plant with a mycorrhizal fungi product before you extract it from the pot, to prevent diseases and boost the absorption of water and absorption. 

Place the plant into the hole, fill with soil, and gently push.

Make a small well around the base of its stem before the first watering, in order to help it preserve the water longer. Water the tomatoes several times on the first day.

Make sure your tomatoes get the needed sunlight in order to thrive. Apply compost or fertilizer twice a month, and remove any weed where necessary.  And then, just enjoy your fresh and delicious tomatoes from your own garden!