Crozin Herbicide (Atrazine 50% WP): The Ultimate Weed Shield for Maize & Sugarcane
Stop weeds before they start. Crozin is a premium Japanese-technology herbicide designed to keep your Maize and Sugarcane fields clean from day one.
Weeds compete with your crop for fertilizer, water, and sunlight, reducing your final harvest. Crozin (Atrazine 50% WP) by Nichino India creates a powerful chemical barrier on your soil. It effectively controls tough broadleaf weeds and grasses during the most critical first 45 days of crop growth.
Best For: Farmers looking for reliable, cost-effective pre-emergence weed control in Corn (Maize) and Sugarcane.
Why Choose This Product? Key Benefits
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Early Action: Kills weeds as they germinate, giving your crop a head start without competition.
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Broad Spectrum Defense: Controls a wide variety of enemies, including the stubborn "Carpet Weed" (Trianthema) and Barnyard grass.
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Long-Lasting Control: A single application keeps the field weed-free for weeks, reducing manual labor costs.
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Rain-Ready Performance: Ideal for the monsoon season; it prevents weeds from taking over even when fields are too wet to enter.
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Crop Safety: Highly selective chemistry ensures your Maize and Sugarcane remain healthy while weeds are destroyed.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Crozin |
| Technical Name | Atrazine 50% WP |
| IRAC MoA Code | Group 5 (Photosynthesis Inhibitor) |
| Chemical Group | Chlorotriazine |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue (Moderately Toxic) |
How It Works: Mode of Action
Crozin works systematically to starve weeds before they can grow.
- Root Absorption: When applied to the soil, the herbicide is absorbed by the roots of germinating weeds.
- Translocation: It travels up through the plant to the leaves and growing points.
- Energy Blockade: It stops Photosystem II (PSII) inside the weed. This effectively blocks photosynthesis, meaning the weed cannot turn sunlight into food and dies.
Why is Maize safe? Maize and Sugarcane plants naturally contain enzymes that detoxify Atrazine rapidly, so they are not harmed.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Trianthema (Carpet weed), Barnyard Grass, Amaranthus, Cocklebur. |
| Sugarcane | Broadleaf weeds, Annual Grasses, Pursuit Vine, Wild Amaranth. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize | 400g – 800g | 200 – 280 L | 2.5g – 4g | -- |
| Sugarcane | 400g – 1600g | 200 – 280 L | 2g – 8g | -- |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. (Note: Since this is applied at sowing, PHI is usually not applicable).
How to Apply: Best Practices
- Timing: Apply within 0 to 3 days after sowing. The soil must be moist for the chemical to work effectively.
- Mixing: This is a wettable powder. Ensure continuous agitation (shaking) of the spray tank so the powder doesn't settle at the bottom.
- Coverage: Use a Flood Jet Nozzle (Cut Nozzle). Walk backward while spraying to avoid breaking the chemical film with your footsteps.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Can I use Crozin on other crops like Cotton or Chilies?
No. Atrazine is specific to Maize and Sugarcane. It will kill or severely damage most other crops.
2. What happens if I spray after weeds have already grown?
Crozin is a pre-emergence herbicide. It works best before weeds sprout. If weeds have more than 2 leaves, efficacy drops significantly.
3. Will it affect my next crop (Crop Rotation)?
Yes, it can. If you plan to grow Mustard, Pulses, or Wheat immediately after Maize, use the lower dosage (400g/acre) and plough the field deep after harvest to dissipate residues.
4. Why is the water volume so high (200L+)?
To create a continuous "seal" on the soil, you need plenty of water. Low water volume leads to gaps where weeds can breakthrough.
5. Where can I buy original Crozin?
If online stock is unavailable, visit authorized Nichino dealers in the Secunderabad/Hyderabad region.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application. Avoid using near water bodies or aquaculture.

