Citrus nutrition and biostimulant programme
How citrus growers in Maharashtra, Andhra Pradesh, Punjab, Madhya Pradesh and Gujarat use humic acid, seaweed, amino acids and biofertilisers, and how our Immunity citrus programme came about.
Stage by stage
| Stage | What the crop needs | Inputs growers use |
|---|---|---|
| Post-harvest | Tree recovery and roots | Humic acid, mycorrhizae |
| Flush | Healthy new growth | Zinc, iron, manganese where deficient |
| Flowering and set | Set and holding fruit | Seaweed extract, amino acids |
| Fruit development | Size and quality | Potash; seaweed |
Results vary with crop, soil, weather and practice. Follow the label, run a small trial first and scale what works on your farm. Nothing on this page is a guarantee of yield.
Citrus problems and our programme
Problems growers bring to us
- Zinc and iron deficiency on alkaline soils
- Flower and fruit drop
- Tree decline
- Uneven fruit size
Immunity citrus programme
Our citrus programme comes from field work with growers of sweet orange, mandarin and lime. The usual problems are tired trees, zinc and iron deficiency on alkaline soils, flower and fruit drop, and uneven fruit size.
Distributors can carry this programme in territories where we do not yet have a presence, and brands can have it made under their own label.
Citrus questions
What is the best fertilizer for citrus trees?
Citrus needs balanced nutrition with close attention to zinc, iron and manganese, which are often deficient on alkaline soils. Humic acid and seaweed extract are common additions.
Why are citrus leaves turning yellow?
Yellowing between veins on young leaves usually points to iron, zinc or manganese deficiency; general yellowing can mean nitrogen shortage or root problems. Confirm with a leaf test.
How can I reduce fruit drop in citrus?
Steady irrigation, balanced nutrition and sprays at set are common parts of the answer; persistent drop needs a field diagnosis.
Tell us about your citrus crop.
Share your region, soil and problem. We recommend a programme and a trial.