NP 25-15 — Nitrogen-Forward Starter for High-Yield Programmes
When soil phosphorus reserves are adequate but early nitrogen drives tiller count and root mass, NP 25-15 shifts the ratio toward 25% N and 15% P2O5. Common in intensive maize and wheat systems where residual soil P from previous seasons reduces the need for high-phosphate starter. Total nutrients 40% with 2–4 mm granules for pneumatic application. From 1,000 MT.
Grade Analysis
- FOB
- CFR
- CIF
- Agriculture
- Blending
- Fertigation
Crop Programmes
Maize growers apply NP 25-15 at 150–250 kg/ha in the seed furrow or as a 5 cm side-band at planting. The higher N fraction supports early vegetative growth before sidedress UAN or urea applications at V6 stage. Suitable for no-till systems where banded starter placement is essential.
FAQ
Which soil conditions favour NP 25-15 over NP 20-20?
Soils with Olsen P above 20 mg/kg and moderate to high organic matter benefit from the reduced P fraction, avoiding phosphorus runoff while maintaining adequate early nutrition through higher nitrogen content.
Is NP 25-15 compatible with seed-placed application in maize?
At rates up to 30 kg/ha of product in the seed furrow, salt injury risk is manageable on medium-textured soils. On sandy soils, use side-band placement 5 cm away from seed to prevent germination damage.
Can NP 25-15 replace a full NPK programme?
NP 25-15 covers early N and P only. Potassium must be supplied separately — typically as MOP broadcast pre-plant or as a later NPK top-dress depending on soil K status and crop removal rates.