Homemade Slow-Release Fertilizer Tablets

Here's a slow-release fertilizer tablet recipe specifically designed for Strawberries 🍓 and Watermelons 🍉.

Why These Ingredients Work for 🍓Strawberries & 🍉Watermelons

• Banana peels – High in potassium (K) and phosphorus (P) for fruit development.

• Eggshells – Provides calcium (Ca), preventing blossom-end rot.

• Coffee grounds – Adds nitrogen (N) for leafy growth but in moderation to avoid excess acidity.

• Cooked potatoes – Starch feeds beneficial microbes for healthier soil.

• Sugar – Boosts microbial activity, helping roots absorb nutrients better.

• Lentils – A natural nitrogen source, improving plant vigor.

Homemade Slow-Release Fertilizer Tablets for Strawberries & Watermelons

Ingredients:

• 2 banana peels (dried & powdered)

• 5 eggshells (crushed into fine powder)

• ½ cup coffee grounds (dried)

• 1 small cooked potato (mashed)

• 2 tbsp sugar (dissolved in warm water)

• ¼ cup soaked lentils (blended into a paste)

• Binder (optional) – 1 tbsp cornstarch or gelatin dissolved in warm water

Instructions:

1. Prepare Ingredients

• Dry banana peels & grind into powder.

• Crush eggshells into fine powder.

• Dry coffee grounds completely.

• Mash cooked potatoes.

• Soak lentils overnight & blend into a paste.

• Dissolve sugar in warm water.

2. Mix Ingredients Together

• In a bowl, combine banana peel powder, eggshell powder, coffee grounds, mashed potato, and lentil paste.

• Add sugar water and cornstarch or gelatin binder (if using).

• Mix until a thick, dough-like consistency forms.

3. Shape into Tablets

• Roll into small balls (marble-sized) or press into a mold.

• If too wet, add more dried coffee grounds or eggshell powder to absorb moisture.

4. Drying Process

• Air dry for 2-3 days OR

• Bake at low heat (150°F or 65°C) for 2-3 hours until firm.

5. Store & Use

• Keep in an airtight container to prevent moisture.

• For strawberries: Place one tablet per plant, 2 inches deep in soil.

• For watermelons: Use 2-3 tablets per plant, spread around the base.

Why This Works for 🍓Strawberries & 🍉Watermelons

✅ High Potassium & Phosphorus → Supports big, juicy fruits.
✅ Slow Release → Prevents over-fertilization.
✅ Organic & Chemical-Free → Healthier soil & plants.