Introduction

The final maturation phase determines the ultimate commercial value of any fruiting crop. Poor coloration, uneven ripening, and lack of visual appeal directly result in severe downgrades at the packing house. This physiological bottleneck often occurs when crops lack the specific nutritional triggers required to synthesize anthocyanins and other crucial pigments under environmental stress. Our Fruit Coloring Water Soluble Fertilizer is meticulously engineered to override these limitations during the late-season coloring stage. By practically eliminating nitrogen (restricted to just 10g/L) and heavily loading the system with 300g/L of Potassium and 200g/L of Phosphorus, this formula forces the plant to shift entirely out of vegetative growth and into intense fruit maturation. The true power of this formulation, however, lies in its biological matrix. Infused with 100g/L of Amino Acids and 200g/L of Organic Matter, alongside a comprehensive suite of chelated micronutrients, it accelerates the enzymatic pathways responsible for pigment production. This ensures your harvest achieves deep, uniform coloration, enhanced firmness, and a significantly higher pack-out rate of premium-grade fruit.

Technical Data & Specifications

Parameter	Specification
Primary Macronutrients	N≥10g/L, P2O5≥200g/L, K2O≥300g/L
Trace & Micro Elements	Mg≥0.2g/L, Cu≥0.05g/L, Fe≥0.4g/L, Mn≥0.2g/L, Mo≥0.01g/L, B≥2.2g/L, Zn≥0.5g/L
Biological Enhancers	Amino Acids (AA)≥100g/L, Organic Matter≥200g/L
Physical State	Premium Liquid Concentrate
pH Value	4.5 - 7.5 (Weakly acidic to neutral in solution)
Density	1.35 - 1.50 g/mL (Dense nutrient suspension)
Target Crops	Apples, grapes, citrus, tomatoes, and other color-dependent crops
Recommendations	Fertigation: Dilution: 1:600-800, apply 10-15 days Foliar Spraying: Dilution: 1:800-1000, apply 7-10 days Root Drenching: Dilution: 1:500-600, apply 10-15 days (Increase or decrease the dosage and frequency according to the local climate, soil condition, crop type and fertilization level.)
Packaging Units	500ml, 1L, 200L (Custom packaging units and personalized label designs are fully customizable upon request).

Key Features and Benefits

Anthocyanin Synthesis Acceleration

The high concentration of Potassium (300g/L) combined with essential amino acids directly stimulates the production of anthocyanins and carotenoids. This biological push ensures rapid, vibrant, and uniform color development across the entire fruit surface, even under suboptimal light or temperature conditions.

Nutrient Translocation Efficiency

The 200g/L of Organic Matter acts as a powerful carrier, facilitating the rapid movement of carbohydrates and sugars from the leaves directly into the fruit sinks. This not only improves color but simultaneously elevates Brix (sweetness) levels.

Enzymatic Catalyst Activation

Trace elements like Iron, Manganese, and Zinc are critical co-factors in pigment synthesis. By supplying these in readily available forms, the fertilizer prevents metabolic stalling during the high-energy demands of the final ripening phase.

Tissue Firmness Maintenance

The synergistic effect of Boron and targeted nutrition ensures that while the fruit rapidly matures and colors, cell wall integrity is maintained, preventing late-stage softening or splitting before harvest.

Frequently Asked Questions (FAQ)

Q: When should I start applying this coloring fertilizer to my orchard?

A: Applications should begin precisely at the onset of the color break stage (veraison in grapes) and continue at 7-to-10-day intervals until the desired coloration is achieved, prior to harvest.

Q: Can the amino acids in this formula cause unwanted vegetative growth?

A: No. Because the nitrogen content is strictly limited to 10g/L, the amino acids act purely as metabolic biostimulants to relieve stress and aid pigment formation, without triggering new leaf flushes.

Q: Are your fertilizers suitable for organic farming?

A: We have separate product lines. Our Chinese herbal extracts series are all plant-based WSF which are designed for conventional high-efficiency farming. Our organic WSF (e.g., based on amino acids, seaweed extracts, potassium fulvate) and biostimulants comply with major standards. Please specify your certification requirement and we can help you for the registration.

Q: What is the shelf life and proper storage method?

A: Shelf life is 36 months in original, sealed packaging. Store in a cool, dry, and ventilated warehouse on pallets, away from direct sunlight, moisture, and heat sources.

Q: What water quality is required for mixing?

A: Ideally, use clean, low-EC water. Hard water (high calcium/magnesium) can cause precipitation with phosphates or sulfates.

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