micronutrient deficiency on Ficus
Quick answer
If your Ficus has micronutrient deficiency, the most likely cause is: Ficus species require micronutrients (Fe, Mn, Zn) alongside NPK for optimal growth. The study found that full NPK treatment produced the highest leaf concentrations of Mg, Ca, Fe, Mn, and Zn. Micronutrient deficiencies in ficus often result from improper pH (typically >7.0 in calcareous soils) which locks out iron and zinc, or from excessive phosphorus which ties up these nutrients even when present in soil.
Start here:
- 1. Iron deficiency in ficus appears as interveinal chlorosis on new leaves while veins remain green — apply chelated iron (Fe-DTPA) at 5-10 ppm
- 2. Zinc deficiency causes small leaves and shortened internodes (little leaf syndrome) — spray with 0.5% zinc sulphate solution
Why Ficus gets micronutrient deficiency
Ficus spp.
Ficus species require micronutrients (Fe, Mn, Zn) alongside NPK for optimal growth. The study found that full NPK treatment produced the highest leaf concentrations of Mg, Ca, Fe, Mn, and Zn. Micronutrient deficiencies in ficus often result from improper pH (typically >7.0 in calcareous soils) which locks out iron and zinc, or from excessive phosphorus which ties up these nutrients even when present in soil.
How to reverse micronutrient deficiency on Ficus
- 1
Iron deficiency in ficus appears as interveinal chlorosis on new leaves while veins remain green — apply chelated iron (Fe-DTPA) at 5-10 ppm
- 2
Zinc deficiency causes small leaves and shortened internodes (little leaf syndrome) — spray with 0.5% zinc sulphate solution
- 3
Manganese deficiency mimics iron chlorosis but affects older leaves first — apply manganese sulphate at 2-5 lbs/100 gallons
- 4
Maintain Ca levels for cell wall strength — deficiency causes new leaves emerging twisted or malformed
- 5
High pH (>7.5) locks out Fe, Mn, and Zn in ficus even when fertilized — lower pH with sulphur or use acidifying fertilizers
Keep micronutrient deficiency off this Ficus
Maintain soil pH between 6.0-7.0 for optimal micronutrient availability; avoid over-phosphorylating which inhibits Fe and Zn uptake; use chelated iron for ficus in high-pH soils.