Phos400™ an alternative to Foschek is absorbed by the plant and translocated via the xylem and phloem to all parts of the plant. Phos400™ alsocontains Potassium as the relationship between Nitrogen, Potassium is critical to driving balanced growth.
Active Ingredient:
400g/L Phosphorous 200g/L Potassium.
Phos400™ Application Guide.
Avocado:
– Rate: 4.0 – 5.5 L/ha (or 375 ml/100 L).
– Timing: Every 3 weeks.
– Application: Spray to runoff (full coverage essential).
Cucurbits:
– Rate: 3 – 4 L/ha.
– Timing: Every 7 days.
– Continue: Until symptoms disappear.
Grapes:
– Rate: 2 – 4 L/ha.
– Water volume:
– Early season: ~500 L/ha.
– Late season: up to 2000 L/ha.
– Key point: Ensure canopy penetration.
Vegetables:
– Rate: 2 – 4 L/ha.
– Timing: Every 7 days.
– Continue: Until symptoms disappear.
Ornamentals:
– Rate: 250 ml/100 L.
– Timing: Every 4 weeks.
– Important:
– Avoid spraying during plant stress.
– Avoid extreme temperatures.
Application Rates:
– Knapsack 6ml/L of water (90ml/15L).
– Mistblower 250ml/10L water.
– High Volume Gun Spraying 500ml/100L water.
How Phos400™ Works:
– Systemic movement: Travels via xylem and phloem, Protects entire plant, not just sprayed areas.
Contains potassium, supporting:
– Balanced growth.
– Nitrogen–potassium interaction.
General Instructions (If using on a new crop)
– Trial a small test area (~1 m²) before full application.
– Coverage is critical → always spray to adequate wetting.
Irrigation / Fertigation Use.
– Add to B tank only, Max concentration 1.5 L per 100 L stock solution.
Practical Takeaways.
– Works best with consistent repeat applications.
– Coverage + frequency matter more than pushing high rates.
– Be cautious in stress conditions (heat, drought, transplant shock).
Caution:
Must be used strictly according to label directions.
Available in: 20L, 200L, 1000L
Phos400 label 20kg
