Best Fertilizer for Coriander in India
Coriander (Coriandrum sativum) is a short-duration spice and leafy crop grown both for green leaves and for seed. Its nutrient needs are moderate compared with long-duration vegetables, but
Overview
Coriander (Coriandrum sativum) is a short-duration spice and leafy crop grown both for green leaves and for seed. Its nutrient needs are moderate compared with long-duration vegetables, but balanced feeding sharply improves leaf yield, branching and seed setting. For leafy coriander, steady nitrogen keeps the foliage tender, green and fast-growing, while for seed crops a balance of phosphorus and potash supports flowering and grain filling. A good base of farmyard manure mixed in before sowing builds the soil and releases nutrients slowly through the short cycle. Because coriander is often grown densely and harvested quickly, even spreading and timely top dressing matter. Always set your dose from a Soil Health Card soil test and confirm with your local KVK, since irrigated and rainfed coriander have different requirements.
Recommended NPK dose for Coriander
A common recommendation is about 50 to 60 kg nitrogen, 25 to 40 kg phosphorus and 20 to 30 kg potash per hectare, which is roughly 20 to 25 kg N, 10 to 16 kg P and 8 to 12 kg K per acre. Leafy coriander grown only for greens needs slightly more nitrogen, while seed crops need balanced phosphorus and potash. Rainfed coriander needs less than irrigated. These are general ranges; your real dose must come from a soil test. Confirm the final figures with your Soil Health Card and KVK.
Application schedule
Apply the full phosphorus, full potash and half the nitrogen as a basal dose at sowing, mixed into the seed bed. Give the remaining nitrogen as a top dressing at about 25 to 30 days after sowing, followed by light irrigation, to push leaf and branch growth. For leafy crops harvested more than once, a small extra nitrogen feed after the first cutting helps the regrowth. For seed crops, avoid heavy late nitrogen, which delays maturity and favours leaves over grain.
Organic & bio-fertilizers
Mix 10 to 15 tonnes of well-rotted farmyard manure or compost per hectare into the soil about two to three weeks before sowing. Where FYM is short, 3 to 4 tonnes of vermicompost per hectare works well and gives clean, tender leaves. Field trials show that good organic manure together with Azotobacter biofertiliser can match or beat chemical-only feeding, especially for leaf coriander. Treating seed with Azotobacter and phosphate-solubilising bacteria improves germination vigour and early nutrient uptake.
Micronutrients & deficiency signs
Coriander generally needs few micronutrients, but in poor soils zinc and iron may be short. Zinc deficiency shows as yellowing between veins on younger leaves and small, narrow growth; correct it with a foliar spray of zinc sulphate when a soil test confirms it. Iron deficiency in alkaline soils causes yellow young leaves with green veins, helped by a foliar iron spray. Boron is rarely needed and should be used only when a soil test shows a shortage, as excess boron quickly damages this sensitive crop.
Tips & cautions
Do mix FYM well before sowing for tender, fast-growing leaves. Do split nitrogen with a top dressing at 25 to 30 days. Do feed lightly after each leaf cutting for regrowth. Don't overdose nitrogen on seed crops, as it gives leaves at the cost of grain. Don't apply fresh manure, which fouls the tender leaves. Don't broadcast urea on dry soil without irrigation. Always keep the crop weed-free early and confirm your dose with the KVK.
These are general recommendations. For the exact dose, follow your Soil Health Card / soil test and local KVK, and avoid over-applying urea.
FAQs
Does leafy coriander need more nitrogen than seed coriander?
How much FYM should I apply for coriander?
When should I top dress nitrogen in coriander?
Can I grow good coriander with mostly organic inputs?
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