Many garden and farm owners struggle with yellowing tree leaves and weak growth — usually caused by a nutrient deficiency or weak root feeding. In this guide, the Green House Line team shares a complete 30-day program combining precise irrigation and foliar spray dosages to restore plant vitality and treat yellowing at its root cause.

Products Used in This Program

  • ✅ Humi Plus
  • ✅ Chelated Iron Fe EDDHA 6%
  • ✅ Super Seaweed
  • ✅ Grow Speed (Fish Protein)
  • ✅ Green Mix (Micronutrients)
  • ✅ Balanced NPK 20-20-20

Dosages — Part 1: Irrigation

Product Per 1 L Per 5 L Per 10 L Per 20 L
Humi Plus2 g10 g20 g40 g
Iron EDDHA1 g5 g10 g20 g
NPK 20-20-202 g10 g20 g40 g
Super Seaweed2 ml10 ml20 ml40 ml
Grow Speed2 ml10 ml20 ml40 ml

Dosages — Part 2: Foliar Spray

Product Per 1 L Per 5 L Per 10 L Per 20 L
Super Seaweed2 ml10 ml20 ml40 ml
Grow Speed2 ml10 ml20 ml40 ml
Green Mix2 ml10 ml20 ml40 ml
NPK 20-20-202 g10 g20 g40 g

⚠️ Spraying Humi Plus or chelated iron is not recommended unless the manufacturer's instructions allow it. In this program, both are used with irrigation only.

Monthly Program (4 Weeks)

Week Day Action Mix
Week 1Saturday🌿 IrrigationHumi Plus + Iron
Tuesday💦 SpraySuper Seaweed + Grow Speed
Friday💦 SprayGreen Mix
Week 2Saturday🌿 IrrigationHumi Plus + NPK
Tuesday💦 SpraySuper Seaweed + Grow Speed
Friday🌿 IrrigationIron EDDHA
Week 3Saturday🌿 IrrigationHumi Plus + NPK
Tuesday💦 SpraySuper Seaweed + Green Mix
Friday💦 SprayGrow Speed
Week 4Saturday🌿 IrrigationHumi Plus + Iron
Tuesday💦 SpraySuper Seaweed + Grow Speed
Friday💦 SprayGreen Mix

Mixing Guidelines

✅ Allowed Mixes Humi Plus + Iron EDDHA (irrigation)
Humi Plus + NPK (irrigation)
Super Seaweed + Grow Speed (spray)
Super Seaweed + Green Mix (spray)
Grow Speed + Green Mix (spray)
❌ Never Mix Iron with Green Mix
Iron with NPK in the same tank
Iron with Calcium
Iron with phosphate fertilizers

Best Time to Apply

🌿 Irrigation 5:30 – 8:00 AM
or
After 5:30 PM
💦 Spray 6:00 – 8:00 AM
or
After sunset

Solution by Problem

Problem Recommended Product
Leaf yellowingHumi Plus + Iron
Weak rootsHumi Plus
Heat stressSuper Seaweed
Weak growthGrow Speed
Nutrient deficiencyGreen Mix
Boosting vegetative growthNPK 20-20-20

Expected Results

Within 7 Days

• Improved plant vitality
• Reduced stress

Within 14 Days

• New growth appears
• Leaves start greening

Within 30 Days

• Clear color improvement
• Strong root & canopy growth
• Increased stress resistance

ℹ️ This program is designed for common cases of tree yellowing. For severe or chronic cases, we recommend a Green House Line technician visit for on-site assessment and a customized program.

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