Complex Full: Fruit Development Fertilizer
Complex Full is a liquid formulation designed to be used during the crop cycle from flowering to harvest. Its composition is intended to support the physiological processes involved in fruit development, particularly sizing and maturation. The formula contains a high concentration of seaweed extract alongside key nutrients.

Complex Full Formulation
- Potassium Oxide (K₂O): An essential macronutrient that activates enzymes and regulates stomatal function and water transport (turgor pressure). It plays a direct role in moving sugars from the leaves to the fruit.
- Seaweed Extract: A source of naturally occurring compounds, including hormones and amino acids, that support cell division and differentiation in plant tissues, including developing fruits.
- Mannitol & Sorbitol: These are sugar alcohols that act as osmolytes. They help the plant maintain cellular water balance, particularly under conditions of osmotic stress.
- Nitrogen (N) & Acetic Acid: Included to support the plant’s foundational metabolic and vegetative functions, which are necessary to sustain fruit growth.
Composition
- Potassium Oxide (K₂O): 15%
- Nitrogen (N): 5%
- Acetic Acid: 5%
- Mannitol: 2.5%
- Sorbitol: 2.5%
- Seaweed Extract
Key Benefits
- Supports Fruit Sizing: Contains a high percentage of potassium (K₂O), a nutrient involved in the transport of carbohydrates and water to the fruit, which are factors in final fruit size and weight.
- Contributes to Fruit Quality Attributes: The components in the formula aid the natural processes that determine fruit characteristics such as firmness, color development, and sugar accumulation (Brix).
- Aids Plant Response to Environmental Stress: The inclusion of seaweed extract, mannitol, and sorbitol provides compounds that help plants manage osmotic stress from environmental factors like heat and water deficit.
- Provides Nutrients During High Demand Periods: Supplies nitrogen and potassium to support plant metabolism during the energy-intensive phase of fruit production.
Application Guidelines
For proper use, follow the application rates below. Ensure the product is mixed thoroughly with water before application.
Foliar Application
- Recommended Rate: 1 litre per 200 liters of water.
- Instructions: Apply as a spray covering the plant’s leaves.
Fertigation
- Recommended Rate: 3 – 5 litres per Feddan
- Instructions: Apply with the irrigation water through a drip or other suitable system.
Applicable Crops
Complex Full is formulated for use on a range of fruit-bearing crops, including:
- Grapes
- Mangoes
- Citrus
- Tomatoes
- Peppers
- Cucurbits (Melons, Cucumbers)
- Strawberries
- Pomegranates
Free Consultation
Selecting the appropriate fertilizer program depends on your specific crop, soil type, and production goals.
Green Magic offers free consultation. For crop-specific recommendations or to integrate the product into your existing fertility program, please contact a Green Magic agronomist.
Explore More from Green Magic
Complex Full is a key part of our larger fertilizer collection.
Back to: All Floral and Fruit Growth Stimulants
Explore: All Fertilizer Products