fertilizer
Sona DAP vs Sona Urea: When to Use Each
Pakistan’s two most-used fertilizers explained — what DAP and Urea each do, when to apply them, typical per-acre rates for wheat, cotton, mango, and how to spot counterfeit.
DAP and Urea are the backbone of Pakistani crop nutrition. Most kissan know one is at sowing, the other is for top-dressing — but the difference matters, the timing matters, and the counterfeit problem in South Punjab means buying from an authorised dealer matters most of all. This guide is the practical reference we share with farmers walking into our Multan branch for the first time.
What each fertilizer actually does
Sona DAP — Di-Ammonium Phosphate, NPK 18-46-0. DAP is a phosphate-led starter fertilizer. The phosphate (the “46” in the NPK) builds root systems, drives early flowering, and supports grain-fill. The smaller nitrogen component (18%) gives the seedling its first push. DAP is broadcast or banded at sowing, before the crop emerges or in the first 7–10 days. After that window, DAP is wasted — phosphate barely moves in the soil profile, so a top-dress application sits there inert.
Sona Urea — Nitrogen 46-0-0. Urea is pure nitrogen. Nitrogen drives leaf and stem growth, chlorophyll, and (in cereals) tillering. Urea is top-dressed in 1–3 splits across the crop cycle. Apply with the right water timing or it volatilises into the air — a 20–30% loss is normal if broadcast onto dry ground in summer heat.
The two are complementary. DAP without Urea: poor canopy, weak vegetative growth. Urea without DAP: stretched plant, poor root mass, susceptible to lodging. Every staple Pakistani crop needs both.
Crop-by-crop rates (typical Punjab practice)
These are the standard application rates for full-irrigation, average-fertility South Punjab fields. Adjust by soil test if you have one; reduce 20–30% if soil is naturally rich (alluvial deposits along the Chenab) or if you are using organic compost in tandem.
Wheat (rabi — sowing October–November)
- DAP: 1 bag (50 kg) per acre at sowing — broadcast and disc into the seedbed
- Urea: 2 bags per acre split: 1 bag at first irrigation (~20 days after sowing), 1 bag at tillering (~45–55 days after sowing)
- Zinc: 4–5 kg per acre at sowing if soil is zinc-deficient (most South Punjab rice-wheat rotations are)
Total: ~3 bags fertilizer per acre.
Cotton (kharif — sowing April–May)
- DAP: 1.5 bags per acre at sowing
- Urea: 2.5 bags per acre split: 0.5 at flowering, 1 at squaring, 1 at first boll-set
- Zinc + Boron: Foliar spray at squaring and boll-set for fruit retention
Total: ~4 bags fertilizer per acre.
Mango (perennial — annual application)
- DAP: 1 bag per mature tree (annual, applied January–February before flowering)
- Urea Granular (not prilled — granular for slow release in tree systems): 1 bag per mature tree, split: 0.5 at flowering, 0.5 after fruit-set
- Zinc + Boron: Foliar spray at flowering and fruit-set — critical for Pakistani Chaunsa and Sindhri fruit retention
Sugarcane (annual — sowing February–March)
- DAP: 2 bags per acre at sowing
- Urea Granular: 4 bags per acre split in three doses across the growing season
Vegetables (kitchen-garden scale)
- DAP: 25 kg per acre at land prep
- Urea Prilled: 20–30 kg per acre split in 2–3 light doses
- Zinc + foliar micronutrients: As per crop (essential for tomato, onion, garlic)
Prilled vs Granular Urea
Both are 46-0-0 nitrogen. The difference is particle size and dissolution rate:
| Prilled | Granular | |
|---|---|---|
| Particle size | 1–2 mm | 2–4 mm |
| Dissolution | Fast (hours) | Slower (days) |
| Best for | Wheat, rice, short cycle | Sugarcane, fruit orchards, slow-release |
| Application | Hand or machine broadcast | Same, but earlier (5–7 days) |
| Volatilisation risk | Higher in dry heat | Lower — preferred for pre-monsoon |
For most kissan, Prilled is the default. Use Granular if your application is into a fruit orchard, sugarcane, or pre-monsoon top-dressing where rain timing is uncertain.
How to spot counterfeit DAP and Urea
Counterfeit fertilizer is a real problem in South Punjab. Cheap “DAP” sold in the mandi for 20% below MRP is often unrelated material — sometimes ground rock dust, sometimes just dyed sand. A single bag costs you not just the price of the bag, but the whole season’s yield on that acre.
How to verify:
- Look for the FFC anti-counterfeit seal — a holographic stamp on every Sona DAP and Sona Urea bag. No seal? Don’t buy.
- Check the batch number and manufacture date — printed clearly on the bag. Faded or absent printing is a red flag.
- Buy from an authorised dealer — we display the FFC dealer certificate at our Multan branch. Ask any dealer for theirs; refuse if they can’t produce it.
- Test in water — Sona DAP partially dissolves in water within 30 minutes leaving fine particulate. Pure sand-fill will sit at the bottom unchanged.
Same protocol applies to Engro Zarkhez DAP and Sarsabz NP — every legitimate Pakistani fertilizer brand has its own seal and batch tracking. We do not stock or recommend any unbranded “no-tag” fertilizer.
When to pre-book (rate-locking)
Pakistani fertilizer wholesale prices move 5–15% in the run-up to sowing season. The pattern repeats:
- September–October: Wholesale prices firm 8–12% before rabi (wheat, vegetables)
- March–April: Same firming before kharif (cotton, sugarcane, rice nursery)
If you know your acreage and likely sowing date, you can lock today’s rate against future delivery. We accept 20% advance — you pick up the goods within 14 days at the day-of-order rate, regardless of where the market moves. Useful for kissan running 10+ acres; less critical for smaller plots.
Call us for today’s rate
DAP and Urea rates change with the wholesale market. We post today’s rate to a free WhatsApp broadcast every morning at 10 AM PKT, and we honour the call-time rate for same-day pickup at our Multan warehouse. Call +92 300 9555810 or WhatsApp the same number — we respond within minutes during business hours.