NO.1 Nutrient Requirements and Fertilization Principles

1. Key Nutritional Demands

• NPK Balance: Optimal N:P₂O₅:K₂O = 1:0.3:4 to 1:0.5:5, with potassium dominating (50%-60%) during fruit maturation.

• Critical Micronutrients:

  • Calcium: Prevents fruit cracking

  • Magnesium: Enhances photosynthesis

  • Boron: Boosts pollen viability (deficiency causes 30% flower drop)

  • Zinc: Alleviates stunted growth

• Microbial Support: Nematode-suppressing microbial agents reduce soil-borne diseases by 40%-50%.

2. Core Fertilization Guidelines

• Potassium-Focused Strategy: Leverage native root nodule nitrogen fixation; excess nitrogen induces vegetative overgrowth, while surplus phosphorus deforms fruits.

• Base-Dressing Synergy: 70%-80% annual nutrients applied as basal dose, primarily through Trelfey’s NY884 Bio-Organic Fertilizer.

• Microbial Integration: Combine Microbial Inoculants with organic matter to boost nutrient efficiency by 15%-20%.

NO.2 Full Growth Cycle Management with Proprietary Fertilizers

1. Basal Application (September-October)

Objective: Stimulate root development and winter nutrient storage.
Technical Implementation:

• Apply 75-105 tons/ha Trelfey NY884 Bio-Organic Fertilizer to improve soil structure and elevate organic matter >2.8%.

• Supplement with 300 kg/ha 18-18-18 Water-Soluble NPK + 450 kg/ha potassium sulfate in 30-40cm deep ring trenches.

• Recommended Additive: 30 L/ha Nematode-Suppressing Microbial Agent (diluted 500× for soil incorporation).

2. Bud Burst Stage (March-April)

Objective: Promote spring shoot growth and flower differentiation.
Proprietary Solutions:

• Foliar Spray: Fish Protein Amino Acid Liquid Fertilizer (1,000× dilution) for amino acid delivery.

• Drip Irrigation: 150 kg/ha 30-10-10 High-Nitrogen Water-Soluble NPK to boost shoot emergence by 25%.

• Critical Note: Apply 0.2% borax solution to reduce flower drop.

3. Fruit Swelling Phase (April-May)

Objective: Enhance fruit expansion and summer shoot development.
Trelfey Fertilizer System:

• Primary Nutrition: 225 kg/ha 10-5-45 High-Potassium Water-Soluble NPK via drip irrigation (increases sugar content 1.8-2.5%).

• Calcium-Magnesium Support: Cal-Mag Liquid Fertilizer (800× foliar spray) reduces fruit cracking 30%.

• Microbial Boost: 15 L/ha Root-Promoting Microbial Agent (with Bacillus laterosporus) to enhance potassium uptake.

4. Post-Harvest Recovery (July)

Objective: Restore tree vigor and initiate flower buds.
Integrated Approach:

• Apply 30 tons/ha composted manure + 150 kg/ha 21-21-21 Balanced Water-Soluble NPK.

• Anti-Stress Treatment: Humic Acid-Potassium Solution (500× foliar spray) extends leaf functionality 10-15 days.

NO.3 Technological Innovations and Impact Analysis

1. Canopy Microclimate Control

Rain-shelter umbrellas (58% light transmission) increase fruit size (+2.4mm), sugar content (+2.1%), harvest window (+8-10 days), and market price (+20%) versus open-field cultivation.

2. Precision Fertigation

Our 30-10-10 (shoot growth) and 10-5-45 (fruit swelling) Water-Soluble NPK series elevate nitrogen use efficiency to 45% when paired with drip irrigation.

3. Microbial-Organic Synergy

Trelfey 884 Bio-Organic Fertilizer combined with nematode-control microbial agents reduces pesticide use 35% while increasing yields 20-25%.

NO.4 Concluding Recommendations

This protocol leverages Trelfey’s proprietary fertilizers—including specialized Water-Soluble NPK Blends, Amino Acid Liquid Fertilizers, and Microbial Inoculants—alongside canopy management to maximize bayberry productivity. For continuous improvement:

• Conduct annual soil testing to adjust fertilization

• Introduce phosphate-solubilizing bacteria (e.g., Bacillus megaterium)

• Optimize Hydroponic Fertilizers for controlled-environment cultivatio