DIY Liquid Fertilizer Recipes

Last updated: August 3, 2025

1. 1-1-1 Liquid Fertilizer (Balanced)

Intended Use: General purpose fertilizer.
Ingredients (for 1 Liter Concentrate):
- Monopotassium Phosphate (KH₂PO₄): 19.23 g
- Potassium Nitrate (KNO₃): 7.42 g
- Urea (CO(NH₂)₂): 13.02 g
- Ammonium Sulfate ((NH₄)₂SO₄): 14.24 g
- Distilled Water: Sufficient to reach a final volume of 1 liter.
Application Instructions: This is a concentrate (10,000 ppm N).
- Light Feeding (approx. 50 ppm N): Add 5 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~50 N, 50 P₂O₅, 50 K₂O)
- Moderate Feeding (approx. 100 ppm N): Add 10 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~100 N, 100 P₂O₅, 100 K₂O)
- Heavy Feeding (approx. 200 ppm N): Add 20 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~200 N, 200 P₂O₅, 200 K₂O)
NPK Analysis (for 1 Liter Concentrate):
- Nitrogen (N): 1.00%
- Available Phosphate (P₂O₅): 1.00%
- Soluble Potash (K₂O): 1.00%
Nitrogen Source Analysis (for 1 Liter Concentrate):
- Urea Nitrogen: ~60%
- Ammoniacal Nitrogen: ~30%
- Nitrate Nitrogen: ~10%

Intended Use: General-purpose high-nitrogen for foliage plants like Pothos, Majesty Palms, Philodendrons, ferns, and Ficus.
Ingredients (for 1 Liter Concentrate):
- Urea (CO(NH₂)₂): 45.65 g
- Ammonium Sulfate ((NH₄)₂SO₄): 28.57 g
- Potassium Nitrate (KNO₃): 21.90 g
- Monopotassium Phosphate (KH₂PO₄): 19.23 g
- Potassium Sulfate (K₂SO₄): 6.52 g
- Distilled Water: Sufficient to reach a final volume of 1 Liter.
Application Instructions: This is a concentrate (30,000 ppm N).
- Light Feeding (approx. 50 ppm N): Add 1.67 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~50 N, ~17 P₂O₅, ~33 K₂O)
- Moderate Feeding (approx. 100 ppm N): Add 3.33 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~100 N, ~33 P₂O₅, ~67 K₂O)
- Heavy Feeding (approx. 200 ppm N): Add 6.67 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~200 N, ~67 P₂O₅, ~133 K₂O)
NPK Analysis (for 1 Liter Concentrate):
- Nitrogen (N): 3.00%
- Available Phosphate (P₂O₅): 1.00%
- Soluble Potash (K₂O): 2.00%
Nitrogen Source Analysis (for 1 Liter Concentrate):
- Urea Nitrogen: ~70%
- Ammoniacal Nitrogen: ~20%
- Nitrate Nitrogen: ~10%

Intended Use: General-purpose high-phosphorus for flowering plants (e.g., canna lilies, peace lilies), bloom boost, or strong root development.
Note: MAP and DAP are both used for a better nitrogen source distribution.

Ingredients (for 1 Liter Concentrate):
- Monoammonium Phosphate (MAP, 12-61-0): 15.38 g
- Diammonium Phosphate (DAP, 18-46-0): 23.08 g
- Potassium Nitrate (KNO₃): 14.60 g
- Potassium Sulfate (K₂SO₄): 6.39 g
- Urea (CO(NH₂)₂): 4.35 g
- Distilled Water: Sufficient to reach a final volume of 1 Liter.
Application Instructions: This is a concentrate (10,000 ppm N).
- Light Feeding (approx. 50 ppm N): Add 5 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~50 N, 100 P₂O₅, 50 K₂O)
- Moderate Feeding (approx. 100 ppm N): Add 10 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~100 N, 200 P₂O₅, 100 K₂O)
- Heavy Feeding (approx. 150-200 ppm N): Add 15 ml to 20 ml of concentrate per 1 liter of water. (Resulting NPK ppm at 20ml/L: ~200 N, 400 P₂O₅, 200 K₂O)
NPK Analysis (for 1 Liter Concentrate):
- Nitrogen (N): 1.00%
- Available Phosphate (P₂O₅): 2.00%
- Soluble Potash (K₂O): 1.00%
Nitrogen Source Analysis (for 1 Liter Concentrate):
- Ammoniacal Nitrogen: ~60%
- Nitrate Nitrogen: ~20%
- Urea Nitrogen: ~20%

Ingredients (for 1 Liter Concentrate):
- Monoammonium Phosphate (MAP, 11-52-0): 19.54 g
- Diammonium Phosphate (DAP, 18-46-0): 21.40 g
- Potassium Nitrate (KNO₃): 14.60 g
- Potassium Sulfate (K₂SO₄): 6.41 g
- Urea (CO(NH₂)₂): 4.35 g
- Distilled Water: Sufficient to reach a final volume of 1 Liter.
Application Instructions: This is a concentrate (10,000 ppm N).
- Light Feeding (approx. 50 ppm N): Add 5 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~50 N, 100 P₂O₅, 50 K₂O)
- Moderate Feeding (approx. 100 ppm N): Add 10 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~100 N, 200 P₂O₅, 100 K₂O)
- Heavy Feeding (approx. 150-200 ppm N): Add 15 ml to 20 ml of concentrate per 1 liter of water. (Resulting NPK ppm at 20ml/L: ~200 N, 400 P₂O₅, 200 K₂O)
NPK Analysis (for 1 Liter Concentrate):
- Nitrogen (N): 1.00%
- Available Phosphate (P₂O₅): 2.00%
- Soluble Potash (K₂O): 1.00%
Nitrogen Source Analysis (for 1 Liter Concentrate):
- Ammoniacal Nitrogen: ~60%
- Nitrate Nitrogen: ~20%
- Urea Nitrogen: ~20%

Intended Use: General purpose high potassium fertilizer for fruiting plants (later development), root crops, and general plant hardiness.
Ingredients (for 1 Liter Concentrate):
- Monopotassium Phosphate (KH₂PO₄): 19.23 g
- Potassium Nitrate (KNO₃): 14.60 g
- Potassium Sulfate (K₂SO₄): 13.32 g
- Urea (CO(NH₂)₂): 10.87 g
- Ammonium Sulfate ((NH₄)₂SO₄): 14.29 g
- Distilled Water: Sufficient to reach a final volume of 1 Liter.
Application Instructions: This is a concentrate (10,000 ppm N).
- Light Feeding (approx. 50 ppm N): Add 5 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~50 N, 50 P₂O₅, 100 K₂O)
- Moderate Feeding (approx. 100 ppm N): Add 10 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~100 N, 100 P₂O₅, 200 K₂O)
- Heavy Feeding (approx. 200 ppm N): Add 20 ml of concentrate per 1 liter of water. (Resulting NPK ppm: ~200 N, 200 P₂O₅, 400 K₂O)
NPK Analysis (for 1 Liter Concentrate):
- Nitrogen (N): 1.00%
- Available Phosphate (P₂O₅): 1.00%
- Soluble Potash (K₂O): 2.00%
Nitrogen Source Analysis (for 1 Liter Concentrate):
- Urea Nitrogen: ~50%
- Ammoniacal Nitrogen: ~30%
- Nitrate Nitrogen: ~20%

Intended Use: General purpose liquid micronutrient supplement for house and garden plants. It is a supplement, not a complete fertilizer, and should be used with your regular NPK fertilizer.
Ingredients (for 1 Liter Concentrate):
- Plantex CSM + B Powder: 28.57 grams
- Distilled or Deionized Water: Sufficient to reach a final volume of 1 Liter.
Micronutrient Content (from powder):
- Magnesium (Mg): 1.5% (chelated)
- Copper (Cu): 0.1% (chelated)
- Iron (Fe): 7.0% (chelated)
- Manganese (Mn): 2.0% (chelated)
- Molybdenum (Mo): 0.06%
- Zinc (Zn): 0.40% (chelated)
- Boron (B): 0.8%
- EDTA: Minimum 65.4%
Application Instructions: This is a concentrate.
- General Maintenance Dose (for most houseplants & garden plants):
  - Add 1 ml of the Micronutrient Concentrate per 1 liter of water.
  - Apply solution every 2 to 4 weeks during active growth (spring/summer) for houseplants, or during the growing season for garden plants.
  - Provides approx.: 2 ppm Fe, 0.57 ppm Mn, 0.23 ppm B, 0.11 ppm Zn, 0.03 ppm Cu, 0.017 ppm Mo, 0.43 ppm Mg.
- Important Dosing Notes: Always dilute concentrate. Err on the side of caution. Observe plants for deficiency or toxicity.
NPK Analysis: Not applicable.
Nitrogen Source Analysis: Not applicable.