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Kenya Biologics

Today’s farmers face many challenges. Governments, organizations and customers force farmers to reduce chemical residues on crops and improve pest control. This is in an environment where pests are getting more resistant to chemicals and a worldwide concern for the impact of chemicals on bees is growing. Kenya Biologics Ltd. aims to provide farmers with affordable and efficacious pesticides that do not harm the environment or leave any residues on crops. Our Mission: We will provide green, safe and cost-effective farm inputs that help to grow and protect the farmer’s crops in a responsible manner. By doing that we actively support sustainable food production and improve the safety of food and drinking water in Africa.
Free delivery for first order and every next over $200

Defender K

Defender K is a specialized nutrient formulation designed to address potassium deficiencies in various crops. This product is vital for promoting healthy plant growth, enhancing resistance to diseases, and improving overall crop yield and quality.

Product Details

  • Symptoms of Potassium Deficiency: Potassium-deficient plants often show chlorosis, particularly in older leaves, leading to green or blue-greenish areas. Plants may also wilt under sunlight due to hydric stress, display shorter internodes, and inhibit growth of young leaves.
  • Role of Potassium (K): Potassium is crucial for plant health, playing a significant role in regulating functions such as photosynthesis, sugar synthesis, and drought resistance. It also enhances the plant’s ability to uptake calcium and magnesium.
  • Effects on Crops: Potassium deficiency reduces water use efficiency, leading to turgor loss in leaves and stunted growth. This can significantly impact crop yield and quality.

Application System and Timing

Defender K is formulated for rapid absorption to maximize nutritional benefits. It can be applied through foliar spraying or diluted in irrigation water. It’s especially effective during the vegetative growth phase and critical stages like fruit ripening and fattening.

Foliar Application: This method ensures direct nutrient uptake by leaves, aiding in quicker deficiency correction.

Irrigation Application: Diluting Defender K in irrigation water allows for even distribution of nutrients to the root zone.

Stability and Storage

Stable for at least three years from the manufacturing date.

Store in a cool, ventilated place. Avoid prolonged exposure to direct sunlight. Keep food, drink, and animal feed, and out of reach of children.


Defender K should not be mixed with products containing phosphorus. When used with plant protection products, always follow pesticide label directions and perform a jar test for compatibility.


  • Potassium (K₂O): 25.00% by mass
  • Complexing Agents: 40.00% by mass (including EDTA and organic acids)
  • Composition may vary based on local regulations.

Dosing According to Crop

Crop Soil Application (L/Ha) Foliar Application (cc/100L) Application Timing
Horticultural crops 5-10 1-2 During fruit ripening and fattening stages
Olive trees 10-15 1.5-3 Throughout the growth period
Citrus and fruit trees 10-15 1.5-3 During critical growth stages for optimal nutrient uptake


Product Details

Volume: 1L, 5L

Protein 15g 23% 30g 30g
Vitamin D 0mcg 23% 0mcg 0mcg
Calcium 320mg 23% 320mg 320mg
Iron 1.6mg 23% 1.6mg 1.6mg
Potassium 510mg 23% 510mg 510mg
Calories 280 23% 280 280
Total Fat 9g 12% 9g 9g
Saturated Fat 4.5g 37% 4.5g 4.5g
Trans Fat 0g 12% 0g 0g
Cholesterol 35mg 14% 35mg 35mg

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