Answer:
1. Anti-snails:
Snails are soft-bodied creatures, so they are very afraid of the sharp edges of eggshells. Instead of throwing them away, you can crush the eggshells, sprinkle them on the ground, near the area where snails often walk or in foam boxes, plastic vegetable pots. This method will limit them from attacking vegetable gardens, biting and destroying young plants, but is only effective for small gardens or ornamental plants.
2. Fertilizer from eggshells:
Eggshells are 95% calcium carbonate and a large amount of magnesium, potassium, iron, phosphorus... These substances are good for plant growth, stimulate root development, so they can be reused as fertilizer.
Two ways to create this type of fertilizer include:
Method 1: Grind (or crush) eggshells (both raw and cooked) and mix with soil to plant plants or compost normally. Grinding helps the eggshells decompose easily and become a source of minerals to supplement the soil. In addition, they also keep the soil loose, helping plants grow better.
Method 2: Make fertilizer from eggshells combined with banana peels. While eggshells contain many minerals and calcium, banana peels are a rich source of potassium and phosphorus for the soil, helping plants to be strong and produce sweet fruit. You just need to chop the banana peels, grind them with eggshells, add a little water or rice water if needed. This mixture can be used to fertilize plants or mixed with soil for new plants.
3. Make seed pots:
Instead of throwing them away, eggshells can be transformed into mini pots for sowing seeds. You just need to use the tip of a knife or scissors to poke small holes in the shell to drain water when watering, then put soil in to sow seeds. Germinated seeds can be planted with the eggshells in the ground, helping the seedlings grow faster. In addition to seed plants, this idea is also suitable for spice plants.
4. Make a watering solution for plants:
In addition to grinding eggshells and mixing them into the soil, you can make a watering solution for plants to add nutrients and enrich the soil. You can use old jars, put eggshells in them, add warm water, soak for about 4 weeks, then mix this solution with watering water in a ratio of "1 in 4" to water the plants.