Views: 0 Author: Site Editor Publish Time: 2026-04-02 Origin: Site
Nitrogen is the most frequently limiting nutrient in crop production systems worldwide. High-concentration nitrogen fertilizers reduce application volumes, transportation costs, and storage requirements while delivering the primary nutrient required for vegetative growth and protein synthesis. NPK 30-0-0 CL & S is a straight nitrogen fertilizer containing 30% total nitrogen, zero phosphorus, zero potassium, plus chloride and sulfur as secondary components. The formulation provides nitrogen in multiple forms for sustained availability, while chloride and sulfur contribute to specific crop physiological functions.
Hebei Wangdalei Trading Co., LTD supplies NPK 30-0-0 CL & S to agricultural operations, fertilizer distributors, and commercial growers. The following technical information is based on standard agronomic research, soil chemistry principles, and field trial data across multiple cropping systems.
The NPK designation represents the percentage by weight of total nitrogen (N), available phosphate (P₂O₅), and soluble potash (K₂O). In the 30-0-0 CL & S formulation:
Total nitrogen: 30% by weight
Available phosphate (P₂O₅): 0% by weight
Soluble potash (K₂O): 0% by weight
Chloride (Cl): Present as a carrier component
Sulfur (S): Present as a secondary nutrient
One metric ton of NPK 30-0-0 CL & S contains 300 kg of total nitrogen. The remaining 700 kg consists of chloride and sulfur-based carrier materials. The product contains no phosphorus or potassium, making it suitable for fields where only nitrogen is required.
The 30% total nitrogen in NPK 30-0-0 CL & S is typically distributed among three forms:
Ammoniacal nitrogen: Ranges from 15% to 20% of total nitrogen (45 to 60 kg per metric ton). Ammonium ions are positively charged and bind to cation exchange sites in soil, resisting leaching. This form is immediately available for plant uptake but is held in the soil matrix.
Urea nitrogen: Ranges from 10% to 15% of total nitrogen (30 to 45 kg per metric ton). Urea is a neutral molecule that moves freely in soil solution. It requires conversion by urease enzyme to ammonium before plants can use it.
Nitrate nitrogen (if present): Some formulations include a small nitrate fraction for immediate availability. Nitrate is negatively charged and highly mobile in soil, subject to leaching but immediately available to plants.
The combination of nitrogen forms provides both immediate and extended availability. Ammoniacal nitrogen resists leaching, while urea provides a slow-release component through enzymatic conversion.
The chloride in NPK 30-0-0 CL & S comes from the carrier materials, typically ammonium chloride or potassium chloride (though potassium is absent in this formulation, chloride remains). Chloride content typically ranges from 15% to 25% of the product weight.
Chloride functions in crop production:
Osmotic regulation: Chloride is an osmoticum that helps maintain cell turgor
Photosynthesis: Chloride is required for the oxygen-evolving complex of photosystem II
Stomatal regulation: Chloride influences stomatal opening and closing
Disease suppression: Chloride has been shown to suppress take-all disease in wheat and stalk rot in corn
Chloride is an essential micronutrient for plants, required at tissue concentrations of 100 to 1,000 ppm. Most crops tolerate chloride levels of 5 to 10 mg per gram of dry tissue.
The sulfur in NPK 30-0-0 CL & S comes from ammonium sulfate or other sulfate-containing materials. Sulfur content typically ranges from 5% to 12% of the product weight, equivalent to 50 to 120 kg S per metric ton.
Sulfur functions in crop production:
Protein synthesis: Sulfur is a component of the amino acids cysteine and methionine
Chlorophyll formation: Sulfur is required for chlorophyll synthesis
Enzyme activation: Many plant enzymes require sulfur-containing cofactors
Oilseed production: Canola, sunflower, and soybean have high sulfur requirements
Sulfur deficiency has become more common as atmospheric sulfur deposition has declined due to reduced industrial emissions. Many regions now require routine sulfur application for optimum crop yields.
The 30% nitrogen content places this product in the high-analysis category for nitrogen fertilizers. Comparison with other nitrogen sources:
| Fertilizer | Nitrogen Content | Product Needed for 100 kg N |
|---|---|---|
| NPK 30-0-0 CL & S | 30% | 333 kg |
| Urea | 46% | 217 kg |
| Ammonium nitrate | 34% | 294 kg |
| Ammonium sulfate | 21% | 476 kg |
| UAN (32% solution) | 32% | 313 kg |
While urea has higher nitrogen concentration, NPK 30-0-0 CL & S provides additional sulfur and chloride that benefit specific crops and soil conditions.
NPK 30-0-0 CL & S is manufactured as granular particles through granulation or compaction processes. Typical granule specifications:
Diameter range: 2.0 to 4.0 mm
Granules in range: Minimum 90% by weight
Granule crushing strength: 2.5 to 3.5 kg force
Dust content: Maximum 1.0%
Fines (below 1 mm): Maximum 2.0%
The product has good physical stability when manufactured properly. The presence of ammonium chloride can increase hygroscopicity compared to straight urea.
The bulk density of granular NPK 30-0-0 CL & S ranges from 0.85 to 0.95 g/cm³. This density is lower than that of compound NPK fertilizers due to the absence of dense phosphate and potash components.
Flow properties:
Angle of repose: 28 to 32 degrees
Compressibility index: 12% to 17%
Hausner ratio: 1.14 to 1.20
The angle of repose is low to moderate, indicating good flowability. Standard fertilizer spreaders handle this product without significant bridging.
NPK 30-0-0 CL & S has high solubility due to its ammonium and chloride components. Solubility in water at different temperatures:
| Temperature | Solubility |
|---|---|
| 10°C | 250 g per liter |
| 20°C | 320 g per liter |
| 30°C | 400 g per liter |
Dissolution time for a single granule in static water at 20°C ranges from 3 to 8 minutes. In agitated water or irrigation systems, complete dissolution occurs within 1 to 3 minutes.
The electrical conductivity of a 1 g/L solution measures 1.8 to 2.3 dS/m. At the maximum dissolution concentration of 320 g/L, the electrical conductivity reaches 580 to 740 dS/m. This high salinity requires careful management to avoid root damage.
NPK 30-0-0 CL & S has high hygroscopicity due to its ammonium chloride and urea content. Moisture absorption rates at 25°C and 70% relative humidity:
First 24 hours: 0.8% to 1.2% weight gain
First week: 2.5% to 3.5% weight gain
First month: 4.0% to 6.0% weight gain
Caking potential is high. Recommended storage conditions:
| Parameter | Recommended Range |
|---|---|
| Relative humidity | Below 50% |
| Temperature | 5°C to 30°C |
| Stack height (paper bags) | Maximum 1.2 meters |
| Stack height (woven bags) | Maximum 1.6 meters |
| Pallet spacing | Minimum 15 cm between stacks |
| Storage duration | Maximum 6 months without use |
Anticaking agents are applied at 0.8% to 1.2% of product weight. Despite these treatments, NPK 30-0-0 CL & S has a shorter shelf life than straight urea. Users should plan inventory rotation within six months of manufacture.
NPK 30-0-0 CL & S is corrosive to carbon steel and galvanized metals due to its chloride content. Equipment in contact with this product should be constructed from:
Stainless steel (304 or 316 grade)
Plastic or fiberglass-reinforced plastic
Rubber-lined carbon steel
Spreaders, conveyors, and storage bins exposed to this product for extended periods require cleaning after each use. Residual fertilizer left on metal surfaces absorbs atmospheric moisture and accelerates corrosion.
The nitrogen in NPK 30-0-0 CL & S follows standard transformation pathways:
Urea hydrolysis (if urea present): Soil urease converts urea to ammonium carbonate. The hydrolysis rate depends on soil temperature:
At 15°C: 50% conversion in 5 to 7 days
At 25°C: 50% conversion in 2 to 3 days
Hydrolysis raises soil pH locally by 1.0 to 1.5 units. This temporary pH increase can enhance availability of certain micronutrients but increases ammonia volatilization risk.
Nitrification: Soil bacteria convert ammonium to nitrate. The process takes 10 to 21 days at 20°C. Each kilogram of nitrogen nitrified generates 3.6 kg of calcium carbonate equivalent acidity.
Ammonia volatilization: Surface application without incorporation leads to losses:
Day 3: 5% to 12% loss
Day 7: 10% to 20% loss
Day 14: 12% to 25% loss
Incorporation within 24 hours reduces losses to below 5%. Rainfall of 10 mm within 48 hours also reduces losses substantially.
Chloride is highly mobile in soil. It does not bind to cation exchange sites and moves freely with soil water. Chloride behavior:
Leaching: Chloride is not retained by most soils. In regions with rainfall exceeding 500 mm per year, chloride leaches below the root zone within one growing season. This prevents long-term accumulation.
Crop uptake: Crops take up chloride at rates of 20 to 100 kg Cl per hectare per year. The chloride from NPK 30-0-0 CL & S is largely removed by high-yielding crops.
Salt effect: Chloride contributes to soil salinity. Electrical conductivity increases by approximately 0.1 dS/m for each 10 kg Cl added per hectare in the top 15 cm of soil, assuming no leaching.
Sulfur in NPK 30-0-0 CL & S exists primarily as sulfate (SO₄²⁻). Sulfate behavior:
Mobility: Sulfate is negatively charged and mobile in soil. It leaches more readily than phosphate but less readily than nitrate. In sandy soils with heavy rainfall, sulfate leaching can remove 30% to 50% of applied sulfur.
Microbial conversion: Soil microbes convert elemental sulfur to sulfate over several weeks. NPK 30-0-0 CL & S uses sulfate-sulfur, which is immediately available to plants.
Organic matter association: Sulfate can be immobilized into organic matter by soil microbes, particularly when crop residues with high carbon-to-sulfur ratio are present. Immobilization is temporary; sulfur is released as organic matter decomposes.
NPK 30-0-0 CL & S has a net acidifying effect due to nitrification of ammonium nitrogen. The acidification potential is higher than for urea alone because ammonium chloride has a greater acidifying effect.
Each 100 kg of applied nitrogen as ammonium chloride generates approximately 5.0 kg of calcium carbonate equivalent acidity. For comparison, urea generates 3.6 kg of acidity per 100 kg N.
For a typical application of 300 kg product per hectare (90 kg N per hectare), annual acidification is:
90 kg N × 5.0 kg CaCO₃ equivalent per kg N = 450 kg CaCO₃ equivalent per hectare
Over five years at this rate, soil pH may decline by 0.3 to 0.6 units in moderately buffered soils. Soil testing every two to three years is recommended. When pH falls below 5.5, lime application is required.
The salt index of NPK 30-0-0 CL & S is higher than that of urea due to the chloride component. The salt index is approximately 100 to 115.
Seed-placed application safety:
Corn: 60 to 100 kg product per hectare in the seed furrow
Wheat: 40 to 70 kg product per hectare in the seed furrow
Soybean: 40 to 60 kg product per hectare in the seed furrow
Canola: 20 to 40 kg product per hectare in the seed furrow
Higher rates cause osmotic damage to germinating seeds, reducing stand establishment by 10% to 30%. For seed-placed application, lower rates than those used for urea are recommended.
Wheat responds strongly to nitrogen application. The sulfur in NPK 30-0-0 CL & S benefits wheat protein content and grain quality. Chloride suppresses take-all disease, a common root disease of wheat.
Winter wheat program (6 metric ton per hectare yield target):
At planting: 100 kg product per hectare (30 kg N)
Green-up in spring: 200 kg product per hectare (60 kg N)
Stem elongation: 100 kg product per hectare (30 kg N)
Total: 400 kg product per hectare (120 kg N)
Spring wheat program:
At planting: 100 kg product per hectare (30 kg N)
Tillering: 150 kg product per hectare (45 kg N)
Stem elongation: 100 kg product per hectare (30 kg N)
Total: 350 kg product per hectare (105 kg N)
Chloride effect on take-all: Research shows that chloride application at 50 to 100 kg Cl per hectare reduces take-all disease severity by 30% to 50% in winter wheat. The chloride from NPK 30-0-0 CL & S at 400 kg product per hectare provides approximately 80 kg Cl per hectare.
Corn has high nitrogen demand and responds to sulfur on sandy soils or soils with low organic matter. The chloride component may suppress stalk rot diseases.
Corn program (12 metric ton per hectare yield target):
Pre-plant incorporated: 150 kg product per hectare (45 kg N)
Starter at planting (banded): 100 kg product per hectare (30 kg N)
Sidedress at V6: 250 kg product per hectare (75 kg N)
Total: 500 kg product per hectare (150 kg N)
Additional nitrogen as urea or UAN is required to reach the full nitrogen requirement of 180 to 220 kg N per hectare. The NPK 30-0-0 CL & S supplies a portion of the nitrogen plus sulfur and chloride.
Stalk rot suppression: Chloride application at 60 to 80 kg Cl per hectare has been shown to reduce corn stalk rot incidence by 25% to 40%. This effect is attributed to chloride's role in osmotic regulation and disease resistance mechanisms.
Canola has high sulfur requirements. The sulfur in NPK 30-0-0 CL & S is particularly beneficial for canola production. However, canola is moderately sensitive to chloride.
Canola program (3 metric ton per hectare yield target):
At planting (banded): 150 kg product per hectare (45 kg N, 15 to 20 kg S)
Sidedress at rosette: 100 kg product per hectare (30 kg N, 10 to 15 kg S)
Total: 250 kg product per hectare (75 kg N, 25 to 35 kg S)
Chloride caution: Canola tissue chloride concentrations above 10 mg/g dry weight can reduce yield. Total chloride application should not exceed 60 kg Cl per hectare. At 250 kg product per hectare, chloride application is approximately 50 kg Cl per hectare, which is within safe limits.
Sulfur requirement: Canola requires 20 to 30 kg S per metric ton of seed. For a 3 metric ton per hectare yield, sulfur requirement is 60 to 90 kg S per hectare. NPK 30-0-0 CL & S supplies 25 to 35 kg S per hectare at typical rates. Additional sulfur as ammonium sulfate or gypsum is required on low-sulfur soils.
Barley has similar nitrogen requirements to wheat but is more sensitive to lodging under high nitrogen. The chloride component may suppress net blotch and spot blotch diseases.
Barley program (5 metric ton per hectare yield target):
At planting: 80 kg product per hectare (24 kg N)
Tillering: 120 kg product per hectare (36 kg N)
Total: 200 kg product per hectare (60 kg N)
Additional nitrogen as urea is applied at stem elongation for malting barley, but total nitrogen should not exceed 100 kg N per hectare to maintain grain protein below 11.5% for malting specifications.
Paddy rice requires careful nitrogen management due to denitrification losses in flooded conditions. NPK 30-0-0 CL & S can be used but should be incorporated before flooding.
Rice program (7 metric ton per hectare yield target):
Pre-plant incorporated: 150 kg product per hectare (45 kg N)
Tillering: 100 kg product per hectare (30 kg N)
Panicle initiation: 100 kg product per hectare (30 kg N)
Total: 350 kg product per hectare (105 kg N)
Chloride in flooded rice: Rice is tolerant of chloride. In fact, chloride is required for rice growth. The chloride from NPK 30-0-0 CL & S is beneficial and does not cause toxicity at recommended rates.
Sugarcane has high nitrogen demand and responds to sulfur on many soils. Chloride is tolerated by sugarcane.
Sugarcane program (100 metric ton per hectare yield target):
At planting: 200 kg product per hectare (60 kg N)
First ratoon (3 months): 200 kg product per hectare (60 kg N)
Second ratoon (6 months): 150 kg product per hectare (45 kg N)
Total: 550 kg product per hectare (165 kg N)
Additional nitrogen as urea is required to reach total nitrogen requirement of 200 to 250 kg N per hectare.
Grass pastures respond strongly to nitrogen and benefit from sulfur on sandy soils. Chloride is not problematic for most grass species.
Grass pasture program (hay production):
Early spring: 200 kg product per hectare (60 kg N)
After first cutting: 150 kg product per hectare (45 kg N)
After second cutting: 150 kg product per hectare (45 kg N)
Total: 500 kg product per hectare (150 kg N)
Legume-grass mixtures: In mixed pastures, nitrogen application should be reduced to avoid suppressing legume nitrogen fixation. Apply 100 to 150 kg product per hectare per application to grass-legume mixtures.
Broadcast application is suitable for pre-plant and topdress use of NPK 30-0-0 CL & S. Spinner spreaders with dual discs achieve spreading widths of 12 to 24 meters.
Calibration parameters:
Gate opening: 8 to 12 mm for 200 kg/ha application rate
Disc speed: 650 to 800 RPM
Ground speed: 8 to 15 km/h
The coefficient of variation for well-calibrated spreaders should be below 15%. The good flow characteristics allow for consistent distribution.
Band placement is effective for NPK 30-0-0 CL & S, particularly for crops with high sulfur requirements. Banding places sulfur in the root zone where it is needed.
Band configurations:
Row crop banding: 5 cm below and 5 cm to the side of the seed row. Safe band rate: 150 kg product per hectare.
Starter band: 2.5 cm below and 2.5 cm to the side of the seed. Safe band rate: 80 kg product per hectare.
Deep banding (no-till): 15 to 20 cm deep. Rate: 200 to 300 kg product per hectare.
Sidedressing places NPK 30-0-0 CL & S alongside growing crops 3 to 6 weeks after emergence. This timing supplies nitrogen during rapid vegetative growth.
Sidedressing rates:
Corn at V4 to V6: 200 to 300 kg product per hectare
Wheat at tillering: 100 to 150 kg product per hectare
Sugarcane at 4 to 6 leaf stage: 200 to 300 kg product per hectare
NPK 30-0-0 CL & S is highly soluble and suitable for fertigation through drip, sprinkler, or center pivot irrigation systems.
Fertigation guidelines:
Maximum concentration in irrigation water: 2 g per liter
For a drip system delivering 30,000 L/ha per event: maximum 60 kg product per hectare per event
Filtration: 200 mesh screen recommended
Injection method: Venturi injectors or piston pumps are suitable. The fertilizer solution should be agitated continuously. After injection, flush the irrigation system with clean water for 20 to 30 minutes to prevent corrosion.
Surface-applied NPK 30-0-0 CL & S loses nitrogen through ammonia volatilization. Incorporation methods and their effectiveness:
| Incorporation Method | Time Window | Volatilization Loss Reduction |
|---|---|---|
| Rainfall 10-15 mm | Within 48 hours | Reduces loss from 20% to 6% |
| Disc harrow (5-8 cm depth) | Within 24 hours | Reduces loss from 20% to 4% |
| Cultivator (5-10 cm depth) | Within 12 hours | Reduces loss from 20% to 3% |
For no-till systems, applying immediately before forecast rainfall of at least 10 mm is the standard practice for loss reduction.
Pre-plant application of NPK 30-0-0 CL & S is appropriate for the nitrogen component. However, early application increases the risk of nitrogen loss from leaching or denitrification. On sandy soils, delay as much nitrogen as possible to sidedress or fertigation timings.
Starter application places a small amount of NPK 30-0-0 CL & S in close proximity to the seed at planting. Starter benefits are greatest under cool soil conditions (below 15°C) and on soils with low available nitrogen.
Starter rates for corn: 80 to 120 kg product per hectare. Starter rates for wheat: 50 to 80 kg product per hectare.
Sidedress application supplies nitrogen during the period of rapid crop uptake. For most annual crops, 50% to 70% of total NPK 30-0-0 CL & S is applied as sidedress.
Corn (12 metric ton per hectare yield target):
Pre-plant incorporated: 100 kg product per hectare (30 kg N)
Starter at planting: 80 kg product per hectare (24 kg N)
Sidedress at V6: 200 kg product per hectare (60 kg N)
Total: 380 kg product per hectare (114 kg N)
Additional N as urea at V8: 60 kg N per hectare
Winter wheat (6 metric ton per hectare yield target):
At planting: 80 kg product per hectare (24 kg N)
Green-up: 150 kg product per hectare (45 kg N)
Stem elongation: 100 kg product per hectare (30 kg N)
Total: 330 kg product per hectare (99 kg N)
Canola (3 metric ton per hectare yield target):
At planting (banded): 120 kg product per hectare (36 kg N)
Sidedress at rosette: 100 kg product per hectare (30 kg N)
Total: 220 kg product per hectare (66 kg N)
Additional S as ammonium sulfate: 30 kg S per hectare
NPK 30-0-0 CL & S contains 30% nitrogen that converts to nitrate. Nitrate leaching potential depends on soil texture and rainfall:
| Soil Type | Leaching Loss at 150 kg N/ha |
|---|---|
| Sand | 25% to 40% with 200 mm rainfall |
| Sandy loam | 15% to 25% with 200 mm rainfall |
| Loam | 10% to 15% with 200 mm rainfall |
| Clay loam | 5% to 10% with 200 mm rainfall |
Split application reduces leaching by matching nitrogen supply to crop uptake periods. On sandy soils, no more than 60 kg N per hectare should be applied in a single application.
Surface application of NPK 30-0-0 CL & S without incorporation leads to ammonia loss. Loss rates depend on soil pH, temperature, and moisture:
Soil pH below 6.0: 5% to 10% loss in 7 days
Soil pH 6.0 to 7.0: 8% to 15% loss in 7 days
Soil pH above 7.5: 12% to 22% loss in 7 days
Incorporation within 24 hours reduces losses to below 5% regardless of soil pH.
Chloride loading from NPK 30-0-0 CL & S is approximately 200 kg Cl per metric ton of product. At typical application rates of 300 to 500 kg product per hectare, chloride loading ranges from 60 to 100 kg Cl per hectare per year.
Most field crops tolerate chloride at these levels. However, on soils with high existing chloride levels or in regions with low rainfall, chloride accumulation can occur. Soil testing for chloride is recommended before repeated use.
Chloride-sensitive crops: Tobacco, strawberry, lettuce, bean, and some potato varieties show yield reduction when chloride exceeds 100 kg Cl per hectare. For these crops, a low-chloride nitrogen source such as urea or ammonium nitrate is preferred.
Sulfur loading from NPK 30-0-0 CL & S is approximately 80 to 120 kg S per metric ton of product. At typical application rates of 300 to 500 kg product per hectare, sulfur loading ranges from 24 to 60 kg S per hectare per year.
Sulfur is not environmentally regulated in most jurisdictions. Excess sulfur is converted to sulfate and leaches from the root zone. Sulfur application in excess of crop uptake does not accumulate to toxic levels in most soils.
In regions with nutrient management regulations, NPK 30-0-0 CL & S application must comply with nitrogen limits.
European Union Nitrates Directive: Maximum 170 kg N per hectare per year from livestock manure. Total nitrogen from all sources cannot exceed 250 kg N per hectare on most arable crops.
United States NRCS 590 Standard: Nitrogen application rates based on realistic yield expectations. For corn with yield goal of 12 metric tons per hectare, maximum nitrogen is 200 kg N per hectare.
The economic value of NPK 30-0-0 CL & S is determined by current market prices of nitrogen, sulfur, and chloride. Using reference prices:
Nitrogen (from urea): $0.95 per kg N
Sulfur (from ammonium sulfate): $0.30 per kg S
Chloride: No direct market value
One metric ton of NPK 30-0-0 CL & S contains 300 kg N and 80 to 120 kg S. The nutrient value is:
Nitrogen value: 300 kg × $0.95 = $285.00
Sulfur value: 100 kg (midpoint) × $0.30 = $30.00
Total nutrient value: $315.00 per metric ton
Manufacturing, bagging, and distribution add $40 to $70 per metric ton. A market price of $355 to $385 per metric ton for NPK 30-0-0 CL & S represents a typical range.
Comparison with urea (46-0-0) at $450 per metric ton:
| Parameter | Urea | NPK 30-0-0 CL & S |
|---|---|---|
| Nitrogen content | 46% | 30% |
| Cost per kg N | $0.98 | $1.18 to $1.28 |
| Sulfur content | 0% | 8% to 12% |
| Chloride content | 0% | 15% to 25% |
NPK 30-0-0 CL & S has a higher cost per kg of nitrogen than urea. However, the product provides sulfur and chloride at no additional cost. For crops requiring sulfur and chloride, the total value may exceed the cost difference.
Wheat production on 200 hectares using NPK 30-0-0 CL & S:
Input costs:
NPK 30-0-0 CL & S at 400 kg per hectare × 200 hectares = 80 metric tons
Product price at $370 per metric ton = $29,600
Application cost at $12 per hectare × 200 = $2,400
Total fertilizer cost = $32,000
Expected yield response:
Without nitrogen: 3 metric tons per hectare
With 120 kg N as NPK 30-0-0 CL & S: 6 metric tons per hectare
Yield increase: 3 metric tons per hectare
Total yield increase: 600 metric tons
Wheat price: $220 per metric ton
Revenue from fertilizer: 600 metric tons × $220 = $132,000
Return on investment: ($132,000 - $32,000) / $32,000 = 3.13 or 313% return
The chloride component of NPK 30-0-0 CL & S provides disease suppression benefits that are not captured in standard nutrient value calculations:
Take-all suppression in wheat: Yield increase of 5% to 15% on infested fields
Stalk rot suppression in corn: Yield increase of 3% to 10% on susceptible hybrids
Net blotch suppression in barley: Yield increase of 5% to 12% on susceptible varieties
For a wheat field with take-all infestation, the disease suppression benefit adds an additional 0.3 to 0.9 metric tons per hectare of yield, worth $66 to $198 per hectare at $220 per metric ton.
NPK 30-0-0 CL & S supplied by Hebei Wangdalei Trading Co., LTD meets the following typical specifications:
| Parameter | Specification |
|---|---|
| Total nitrogen (N) | 30.0% ± 0.5% |
| Ammoniacal nitrogen | 15.0% to 20.0% |
| Urea nitrogen | 10.0% to 15.0% |
| Available P₂O₅ | 0% |
| Soluble K₂O | 0% |
| Chloride (Cl) | 18.0% to 22.0% |
| Sulfur (S) | 8.0% to 12.0% |
| Moisture | Maximum 1.5% |
| Granule size (2-4 mm) | Minimum 90% |
| Granule hardness | Minimum 2.5 kg force |
| Dust content | Maximum 1.0% |
Standard packaging configurations for NPK 30-0-0 CL & S:
25 kg bags: Laminated plastic-woven construction with inner liner. 40 bags per pallet, 1,000 bags per 25 metric ton container.
50 kg bags: Laminated plastic-woven construction. 40 bags per pallet, 500 bags per 25 metric ton container.
1,000 kg jumbo bags: Polypropylene woven with polyethylene liner. 25 bags per 25 metric ton container.
Bulk container liners: 25 metric tons per 20-foot container.
Hebei Wangdalei Trading Co., LTD maintains supply relationships with nitrogen fertilizer manufacturers operating ISO 9001-certified production facilities. Monthly production capacity for NPK 30-0-0 CL & S through partner facilities exceeds 15,000 metric tons.
Standard lead times:
Order confirmation to production: 3 to 5 days
Production to container loading: 5 to 7 days
Container loading to port departure: 2 to 4 days
Total from order to shipment: 10 to 16 days
Export documentation provided with each shipment:
Certificate of Analysis
Bill of Lading
Packing List
Commercial Invoice
Origin Certificate (upon request)
Phytosanitary Certificate (upon request for certain destinations)
NPK 30-0-0 CL & S is a high-concentration nitrogen fertilizer that provides 30% nitrogen along with chloride and sulfur as secondary components. The product contains no phosphorus or potassium, making it suitable for fields where only nitrogen is required. The combination of nitrogen forms (ammoniacal and urea) provides both immediate and extended nitrogen availability.
The chloride component serves as an essential micronutrient and has been shown to suppress certain soilborne diseases in wheat and corn. The sulfur component addresses the increasing prevalence of sulfur deficiency in many agricultural regions. The high solubility of the product makes it suitable for fertigation, while the granular form allows for broadcast and band application.
The high hygroscopicity of NPK 30-0-0 CL & S requires proper storage conditions with relative humidity below 50% and limited storage duration. The corrosive nature of the product requires equipment constructed from stainless steel or plastic for long-term contact.
Hebei Wangdalei Trading Co., LTD supplies NPK 30-0-0 CL & S with consistent granule quality, multiple packaging options, and reliable supply chain capabilities for agricultural operations worldwide.