Unlock Maximum Yield with Precision Nitrogen and Potassium Nutrition
In the world of precision agriculture, the right fertilizer ratio can make all the difference between a good harvest and an exceptional one. The 4NPK Fertilizer 42-0-5, with its high nitrogen (42%) and low potassium (5%) composition, has emerged as a game-changer for specific crop needs where phosphorus is unnecessary. This specialized formulation eliminates the extra phosphorus found in traditional NPK fertilizers, providing a targeted solution that maximizes yield while minimizing waste and environmental impact.
Why NPK Fertilizer 42-0-5 is the Smart Choice for Your Farm
Unlike standard NPK fertilizers that include phosphorus (P), the 42-5 NK formula delivers only the nutrients your crops truly need: nitrogen and potassium. This precision approach offers several compelling advantages:
42% Nitrogen Boost
Supports vigorous leaf and stem development during critical growth stages
01
5% Potassium
Enhances disease resistance and overall plant resilience
02
0% Phosphorus
Eliminates unnecessary phosphorus that can lead to nutrient imbalance
03
Cost Efficiency
Reduces fertilizer costs by eliminating unused components
04
Environmental Benefits
Minimizes phosphorus runoff into
waterways
05
Real-World Impact: Farms using 42-5 NK fertilizer have reported a 15-22% yield increase while reducing fertilizer costs by 18-25% compared to traditional NPK alternatives.
NPK Fertilizer 42-0-5: Perfect for These Crops
The 42-5 NK formula is ideal for crops with high nitrogen needs and low phosphorus requirements. Here's a detailed breakdown of the best applications:
Corn Production: The NPK Fertilizer 42-0-5 Game Changer
Corn requires significant nitrogen during its rapid growth stages but benefits less from phosphorus once established. The 42-5 NK ratio (42% N, 5% K) provides the perfect nitrogen boost for corn's critical vegetative growth phase.
Field Results:
higher yield compared to 15-15-15 NPK
reduction in fertilizer costs
decrease in phosphorus runoff
Wheat and Barley: Early Growth Optimization
For wheat and barley, the 42-5 NK formula supports robust early growth and tillering without the phosphorus that can be unnecessary in well-managed soils.
Application Timing:
Apply 30% at planting
Apply 50% during early tillering
Apply 20% at heading stage
Cotton Cultivation: Enhanced Fiber Quality
Cotton benefits from high nitrogen during boll formation. The 42-5 NK ratio supports vigorous vegetative growth and improves fiber quality without the phosphorus that can interfere with cotton's nutrient uptake.
Key Benefits:
18% higher lint yield
Improved fiber length and strength
20% reduction in overall fertilizer application
Rice: Early Growth Stage Boost
For rice, the 42-5 NK fertilizer is particularly effective during the seedling and early tillering stages, providing the nitrogen boost needed for rapid establishment without the phosphorus that can be less critical at this stage.
How to Use 42-5 NK Fertilizer for Maximum Results
Optimal Application Rates
Corn: 25-30 kg per acre during critical growth stages
Wheat: 20-25 kg per acre, applied in three stages
Cotton: 22-28 kg per acre, applied during boll formation
Rice: 18-22 kg per acre during seedling and tillering stages
Best Application Methods
Broadcasting: For large fields and row crops
Furrow Application: Placed directly in the soil near roots
Foliar Spraying: For quick nitrogen boost during stress periods
ritical Timing Tips
Apply before critical growth stages when plants need the most nitrogen
Avoid application during extreme heat (above 35°C) to prevent nitrogen loss
Combine with soil moisture for maximum absorption
| Shandong New-blue Environmental Protection & Technology Co.,Ltd Product Inspection Report | |||||
| Standard code： | GB/T15063-2020 | Serial number： | ZJ8.2.4-12 | ||
| Production date | 2025.7.21 | Batch | 376 tons | ||
| Sampling date | 2025.7.21 | Batch number | 2025072113 | ||
| Report Date | 2025.7.22 | Laboratory Technician | |||
| Testing items | Technical Requirements | Test results(%) | |||
| Total nitrogen (N) | ≥42±0.5 | 42.0 | |||
| Available phosphorus (as P2O3) | / | / | |||
| Potassium (as K2O) | ≥5.0±0.5 | 5.2 | |||
| Total nutrients (N+P2O3+K2O) | ≥47.0 | 47.2 | |||
| Moisture(H2O) | ≤2.0 | 0.5 | |||
| Granularity(2.0mm-4.75mm) | ≥90 | 96 | |||
| Remark | 42-0-5 | ||||
Our Certificate
SGS
SGS
VDA
new Blue
Shandong New Blue Environmental Protection Technology Co., Ltd. Having eight production bases across the country, is one of the biggest Urea supplier in northern China, with an annual sales of 300 million liters and more than150 employees
certificates
VDA(ISO22241)/EU-REACH/IATF16949 certificates
capacity
Fegularly delivery more than 10,000tons/month to worldwide.
companies
Long-term cooperation among multiple companies
CIQ advantage
Make CIQ inspection in advance to shorten the CIQ process into one month, with shorter lead time than other suppliers.
We can provide 500kg/1000kg high-capacity packaging according to customer needs;
We have complete qualifications and can obtain an export license within 30 days;
one of the largest vehicle urea production enterprise in northern China
Why Choose Us
Lab Test
Advanced testing instruments according to ISO22241 standard, provide every batch test to ensure the stable quality.
High Quality
1.Incoming Quality Control 2.Process Quality Control 3.Final Quality Control;
Our quality control is well-managed throughout the entire production process.
CIQ advantage
Make CIQ inspection in advance to shorten the CIQ process into one month, with shorter lead time than other suppliers.
Best Location
Manufacturing locate in Weifang City, close to Qingdao port, cheaper logistic cost and fast containers delivery.
Rich export experience
Newblue has been engaging in Automotive Grade Urea and /AdBlue® business more than 15years, providing more than10,000tons high quality products each month
Attachment are company profile, BL of lading and SGS reports of recent shipments for your reference.
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