Rasayanzine Herbicide (Atrazine 50% WP) | Expert Weed Control for Maize & Sugarcane
Stop weeds before they start. Rasayanzine is a selective, systemic herbicide by Krishi Rasayan (KREPL) designed to protect Maize and Sugarcane yields.
Weeds like Carpet Weed and Pigweed can steal up to 60% of your crop's nutrition. Rasayanzine (Atrazine 50% WP) offers a powerful, cost-effective solution. It works by creating a protective chemical barrier in the soil, preventing weed seeds from establishing, while leaving your crop completely safe.
Best for: Pre-emergence and early post-emergence control of broadleaf weeds and annual grasses in Corn (Maize) and Sugarcane.
Why Choose Rasayanzine? Key Benefits
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Early Action: Stops weeds immediately at germination (0-3 Days after sowing), giving your crop a head start.
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Broad Spectrum Defense: Effectively controls tough broadleaf weeds like Trianthema and Amaranthus, plus key grassy weeds.
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Long-Lasting Residual: Remains active in the soil for 4 to 6 weeks, reducing the need for repeated manual weeding.
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Systemic Power: Absorbed through roots and foliage, delivering a complete kill by blocking the weed's energy production.
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Crop Safety (Selectivity): Specially formulated to be safe for Maize; the crop naturally detoxifies the chemical while weeds perish.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Rasayanzine |
| Technical Name | Atrazine 50% WP |
| IRAC MoA Code | Group 5 (Photosynthesis Inhibitor) |
| Chemical Group | Chlorotriazine |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Rasayanzine acts as a metabolic disruptor. It stops the weed from converting sunlight into energy.
- Absorption: The herbicide is absorbed primarily through the weed's roots and transported upward to the leaves.
- Blockade: It binds to specific proteins in the chloroplasts (Photosystem II), effectively blocking the electron transport chain.
- Elimination: Without energy processing, the weed cells accumulate toxic compounds, leading to yellowing (chlorosis) and death within 7-14 days.
Note: Maize plants naturally contain enzymes that break down Atrazine rapidly, ensuring they remain unharmed.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Trianthema monogyna (Carpet weed), Amaranthus spp. (Pigweed), Digera arvensis, Echinochloa spp. (Barnyard grass). |
| Sugarcane | Portulaca oleracea (Purslane), Boerhaavia diffusa, Tribulus terrestris, and other broadleaf weeds. |
| Limitations | Not effective on perennial sedges like Nutgrass (Cyperus rotundus). |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" based on your soil type. Heavy clay soils require higher doses than sandy soils.
Dosage per Acre, Water Volume, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize (Light Soil) | 400g - 500g | 200 - 300 L | 2 - 2.5g | 60 Days |
| Maize (Heavy Soil) | 600g - 800g | 200 - 300 L | 3 - 4g | 60 Days |
| Sugarcane | 400g - 1600g | 300 L | 2 - 5g | 28 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *Note: Doses are in grams (g) as this is a wettable powder.
How to Apply: Best Practices
- Timing: Apply within 0-3 days of sowing (Pre-Emergence) for best results. Soil should be moist but not flooded.
- Mixing: Do not dump powder directly into the tank. Create a "slurry" (concentrated mix) in a bucket first, then add to the sprayer. Keep the tank agitated.
- Coverage: Use a Flat Fan or Flood Jet nozzle. Do not use hollow cone nozzles, as they are for insecticides and drift easily.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying near water bodies.
Frequently Asked Questions
1. Can I use Rasayanzine if I am intercropping with pulses?
No. Rasayanzine will kill sensitive crops like pulses (Chickpea, Cowpea) and oilseeds. Use only in pure stands of Maize or Sugarcane.
2. Does it control Nutgrass (Cyperus rotundus)?
No, Rasayanzine has poor control over established perennial sedges like Nutgrass. It is best for annual broadleaf weeds.
3. What happens if it rains immediately after spraying?
Light rain helps activate the herbicide. However, heavy rain immediately after application may cause leaching. It is moderately rainfast once dried.
4. How long do I need to wait before planting the next crop?
Wait at least 90-120 days before planting sensitive crops like Mustard or Gram. Wheat is generally safe to plant after Maize harvest.
5. Why is my nozzle clogging?
Rasayanzine is a Wettable Powder. If not pre-mixed into a slurry, it can clump. Always use clean water and a 50-mesh filter, and clean your nozzle after use.
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. Do not use near aquatic bodies as it is toxic to fish.
