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NPK 40-0-0+13SO3 Nitrogen fertilizer

Nitrogen fertilizer is a unit fertilizer with nitrogen as its main component. By providing essential nitrogen nutrition for plants, it directly affects the growth and development, yield and quality of crops. Nitrogen fertilizer promotes stem and leaf growth and chlorophyll synthesis, increases crop yield and improves quality, ‌enhances stress resistance and physiological function. It can be used as base fertilizer, top dressing and foliar spraying.

Product Description

Main Features

High Nitrogen Efficiency: Delivers 40% nitrogen for fast vegetative growth and leaf development.
Sulfur Enrichment: 13% sulfur improves nitrogen uptake and supports protein, vitamin, and enzyme synthesis.
Granular Format: Ensures even spreading and suitability for mechanical application.
Low Moisture Content: Enhances storage life and prevents caking.
Multi-Application Use: Applicable for base fertilizer, top dressing, or foliar spraying.
High Compatibility: Free from chloride and heavy metals; safe for sensitive crops.
International Standards: Manufactured in compliance with ISO 9001 and ISO 22241-1.

Application Scenarios

NPK 40-0-0+13SO₃ is especially suitable for nitrogen-demanding crops and those responsive to sulfur supplementation. Recommended applications include:

Crop Type	Benefits
Cereal Grains (Wheat, Rice, Maize)	Enhances tillering, leaf development, and grain protein content.
Oilseeds (Rapeseed, Soybean, Peanut)	Sulfur promotes oil formation; nitrogen improves biomass production.
Cruciferous Vegetables (Cabbage, Broccoli, Radish)	Sulfur is essential for flavor and disease resistance in these crops.
Industrial Crops (Tobacco, Cotton, Sugarcane)	Nitrogen fuels vegetative growth; sulfur improves quality and aroma.
Fruit Trees (Apple, Citrus, Grape)	Supports new shoot growth and enhances stress resistance and fruit set.

Recommended Usage

Base Fertilizer: Apply before sowing or transplanting to promote early growth.
Top Dressing: Use during mid-season to sustain vegetative vigor and yield.
Foliar Spray (if fully soluble): Use diluted solution for rapid nutrient correction.

Packaging & Transport

Available Options:

9.9KG PP Bags
25KG PP Woven Bags
50KG Industrial Bulk Bags
Custom packaging available upon request.

Logistics:

20’GP container load capacity: ~25MT without pallet / ~22MT with pallet

Storage & Handling:

Store in a cool, dry, well-ventilated place
Avoid direct sunlight and rainfall
Keep away from ignition sources
Handle with care to avoid package breakage
Keep out of reach of children and animals

OEM Customization

We support full OEM customization for large orders:

Custom packaging design (multi-language / branded)
Variable bag sizes from 100g to 1000kg
Tailored formulas with additional trace elements (Zn, Mg, Mn, etc.)
Personalized labels, manuals, and palletizing

Why Choose Us

Strength	Description
Manufacturer Advantage	Direct factory pricing from a certified producer in Shandong, China
Strict Quality Control	Multi-stage QC system: raw material inspection, batch testing, third-party optional verification
International Certification	Products certified with ISO 9001 and ISO 22241-1
Flexible Supply Chain	Fast delivery from port with 10,000MT/month capacity
OEM/ODM Available	Custom formulas and packaging for distributors and B2B clients

Specification

ITEM	STANDARD	TEST RESULT
Appearance	Granular	Granular
Granular Size	0.85-2.8mm≥90%	92%
Nitrogen (N)	≥40%	40.2%
Sulfur Trioxide (SO3)	≥13%	13.4%
Moisture	≤1.5%	0.98%

Product Application

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NPK 40-0-0+13SO3 Nitrogen fertilizer

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