• Root and Reproductive Growth PromotionHigh P builds robust root systems and facilitates flower bud formation, increasing bloom rates by 20-30%; K supports pollination and fruit set, preventing deficiencies like sterile buds or weak stems in soybeans and potatoes.

• Stress Resilience and Nutrient EfficiencyK regulates osmosis for drought/salinity tolerance, while P enhances energy metabolism; combined, they improve fertilizer use efficiency by 15-25%, reducing leaching and boosting resilience in low-CEC soils.

• Yield and Quality OptimizationBalanced P-K applications yield 0.65-2 t/ha gains in resilient crops, improving fruit firmness, sugar content, and storability; ideal for autumn base dressing to sync with crop removal.

High P-K fertilizers are manufactured by blending phosphoric acid with potassium hydroxide or salts like MOP, yielding granular/water-soluble forms with neutral pH (6-7) for even distribution and minimal fixation losses. Granules (2-4 mm) ensure slow release, while liquids suit fertigation; low salt index variants prevent seed damage. Compliant with EU REACH and USDA standards, they feature high solubility (>90%) and compatibility with micronutrients.

• NPK Ratio: 0-20-30 or 8-20-30 (P₂O₅ ≥20%, K₂O ≥30%)

• Phosphorus Availability: 80-90% (as P₂O₅)

• Potassium Form: KCl or K₂SO₄ (≥95% purity)

• pH Value: 6.0-7.5 (Neutral)

• Density: 1.0-1.2 g/ml (Granular: 1.4-1.6 g/cm³)

• Solubility: Fully water-soluble (>95%)

• Packaging: 25-50kg Bags or 1-20L Bottles (Liquid)

Applicable Period: Pre-planting or early growth, especially autumn for perennials or spring for annuals.

Usage and Dosage:

• Broadcast/Base: 100-200 kg/ha P-K (e.g., 150 kg 0-20-30 for potatoes); incorporate 5-10 cm deep.

• Banding/Sidedress: 50-100 kg/ha near roots; for fertigation, dilute 1:100-200, 20-40 L/ha every 14-21 days.

• Foliar: 2-5% solution, 10-20 L/ha, 2-3 applications during flowering/fruiting.

Soil test-based: Apply if P <21 ppm or K <98 ppm; biennial for maintenance. Avoid seed contact to prevent salt injury.

• Test soil pH first—lime acidic soils (>pH 6.2) to maximize P availability; avoid over-application to prevent luxury uptake or runoff.

• Mixing: Compatible with most N sources; sequence water/dilute before adding; jar test for blends.

• Storage: Dry, cool (<30°C), ventilated bags; away from moisture/children/animals to prevent caking.

• Prohibited: Direct seed contact (salt burn risk); rinse skin/eyes on exposure, seek medical aid if ingested.

• Shelf Life: 2-3 years. Check production date; reseal to avoid humidity absorption.