1. Maximum Sulfur Concentration (30% S) for Critical Deficiencies

This is our highest sulfur SKU, specifically designed for crops with massive sulfur appetites. It is the premier choice for Canola/Rapeseed​ (to maximize oil content), Alliums​ (Garlic, Onions – to enhance pungency and bulb size), and Legumes. It rapidly corrects severe sulfur deficiencies indicated by uniform chlorosis in younger leaves.

2. Balanced Dual Nitrogen Source (8% Nitrate + 8% Ammonium)

Provides the immediacy of nitrate for quick green-up and the longevity of ammonium for steady growth. This balance ensures high Nitrogen Use Efficiency (NUE) and reduces the risk of leaching compared to urea-based programs, particularly important when applying lower nitrogen rates.

3. Powerful Soil Acidifier for Alkaline Soils

With a pH of 5.0–6.0, ASN 16-0-0+30S is an excellent tool for managing high pH soils. It lowers the rhizosphere pH, converting “locked-up” micronutrients (Iron, Manganese, Zinc) into plant-available forms, thereby improving overall nutrient uptake efficiency.

4. Premium Physical Integrity (2-4mm Granules)

Manufactured as hard, round granules, it offers superior spreading characteristics up to 36 meters. It resists crushing and dust generation, ensuring accurate application and protecting sensitive plant tissues during side-dressing.

5. 100% Water-Soluble for Modern Irrigation

Instantly dissolves without residue, making it ideal for fertigation (drip/pivot) and hydroponic systems. It will not clog filters or emitters, ensuring uninterrupted operation of high-value crop irrigation systems.

6. Export-Ready & Fully Documented

Classified as Non-Dangerous Goods for streamlined global logistics. Each shipment includes a full Certificate of Analysis (COA), Material Safety Data Sheet (MSDS), Third-Party Inspection (SGS/CIQ), and Certificate of Origin (CO).

Application Methods

Broadcasting: Spread evenly on the soil surface. Incorporate into the soil with light tillage or irrigate within 24 hours to minimize volatilization losses, especially in warm climates. Ideal as a pre-plant basal application for broadacre crops such as canola and cereals.

Side-Dressing / Banding: Place 5–10 cm beside and below the seed row during active vegetative stages (e.g., rapeseed stem elongation, wheat tillering). Do not place ASN in direct seed contact to avoid ammonium toxicity and seedling injury. This method is particularly effective for high-value crops requiring precise nutrient placement.

Fertigation: ASN 16-0-0+30S dissolves rapidly and completely. Use a stock solution tank with continuous agitation. Flush drip lines thoroughly after each cycle to prevent salt buildup at the emitters. Recommended as a split application (2–3 times per season) for high-sulfur demand crops. Ensure injection points are downstream from filters and pressure regulators.

Foliar Spray (Corrective Use Only): While primarily a soil-applied fertilizer, dilute solutions (1–2%) can be used to correct acute sulfur or nitrogen deficiencies (e.g., interveinal chlorosis in young leaves). Always perform a jar test before tank-mixing with pesticides. Avoid mixing with strong alkalis (such as Calcium Nitrate or Potassium Carbonate). Apply during cooler parts of the day to maximize absorption.

Precautions & Best Practices

Soil Testing: This is a high-sulfur (30% S) formulation. Base application rates on soil tests showing < 10 ppm available S. Over-application on sulfur-sufficient soils leads to unnecessary costs, potential manganese deficiency, and environmental loading. Consult local agronomic guidelines for crop-specific sulfur requirements.

Storage: Store in a cool, dry, and well-ventilated area. Although ASN has low hygroscopicity, it can cake under high humidity (>70%). Keep bags sealed until use. Palletize bags to prevent ground moisture absorption. Rotate stock using FIFO (First-In-First-Out) principles.

Mixing: Generally compatible with most pesticides and fertilizers. However, avoid mixing with strong alkalis (such as Calcium Nitrate or Potassium Carbonate), which can trigger ammonia volatilization. When in doubt, conduct a small-scale compatibility test before full tank mixing.

Environmental Conditions: Apply when rain is expected within 24 hours or irrigate immediately to wash nutrients into the root zone. Avoid application during heavy rainfall to prevent nutrient runoff into sensitive water bodies. Do not apply to frozen or snow-covered ground.

Safety: Although low in free ammonia (≤ 200 p.p.m.), wear gloves and a dust mask during handling to prevent skin irritation and inhalation of fine particles. Wash hands thoroughly after handling. Store away from food and feed products.

Crop-Specific Timing: For optimal results in canola/rapeseed, apply 60–70% as pre-plant basal and the remainder as side-dress at early stem elongation. For alliums (onions, garlic), split applications across the active bulbing phase maximize sulfur uptake and flavor compound synthesis.