Fosi K | Potassium and Phosphorus Liquid Fertilizer

This product provides simultaneous supplementation of potassium (K) and phosphorus (P), essential nutrients that enhance plant resistance to diseases and environmental stresses. It reduces flower and fruit drop, improves fruit quality, and enhances color development. When plants face diseases or environmental stress, they naturally secrete phytoalexins—compounds that boost resistance and aid recovery by accumulating in damaged areas. The action of phosphite in controlling plant diseases is primarily linked to its direct effect on pathogens or its indirect role in stimulating host defenses.

Due to its lower oxygen content compared to phosphate, phosphite moves more rapidly through plant tissues, spreading throughout the plant organs in a short time. The presence of phosphite in this fertilizer increases phosphorus absorption through leaves and roots while facilitating its translocation within plant tissues. With its bidirectional movement (upward and downward), potassium phosphite can be effectively applied via both foliar spraying and irrigation.

Nutrient Composition:

• Phosphorus: 39% (w/v), 30% (w/w)
• Potassium: 26% (w/v), 20% (w/w)

Key Benefits:

• Enhances plant resistance to diseases due to the presence of potassium.
• Increases flower and fruit set due to phosphorus content.
• Prevents flower drop due to phosphorus.
• Boosts plant photosynthesis.
• Improves grain filling due to potassium.
• Offers fungicidal properties due to phosphite ions.
• Prevents fruit deformities.
• Promotes better rooting and nutrient translocation due to phosphorus.
• Increases fruit size and improves visual fruit characteristics due to potassium.
• Enhances the performance and stimulation of elements like manganese and iron.

Application Guidelines:

• Vegetables and Horticultural Crops (Foliar Spray): 1–3 liters per hectare
• Fruit Trees (Foliar Spray): 1–2 liters per 1,000 liters of water

For optimal results, apply during early morning or late afternoon to maximize nutrient uptake and minimize evaporation. Consult our agricultural experts for tailored recommendations based on your specific crop and environmental conditions.