Cortus Mycorrhizal Biofertilizer (Gromor Suraksha)
The "Double-Action" Soil Health Promoter: Mycorrhiza + Neem Power.
Cortus by Coromandel International is a revolutionary bio-product designed to transform your soil health. It combines high-quality Endo-Mycorrhizal fungi with a unique Neem Seed Husk coating. This powerful duo works underground to extend your crop's root system, unlock hidden Phosphorus (Legacy P) in the soil, and protect roots from harmful nematodes. It is the ultimate solution for farmers looking to reduce chemical dependency while boosting yield and drought resistance.
Why Choose This Product? Key Benefits
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Rapid Root Establishment: Contains spores, mycelium, and root bits that immediately colonize roots, ensuring fast seedling survival and reduced transplant shock.
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Bio-Protection (Suraksha): The unique Neem coating acts as a natural shield, suppressing harmful nematodes and soil-borne pathogens in the root zone.
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Drought Resistance: The fungal network acts like a sponge, accessing water from deep micropores that plant roots cannot reach, keeping crops green during dry spells.
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Unlocks Fixed Phosphorus: It mines "Legacy Phosphorus" trapped in the soil and solubilizes it, making it available to the plant and reducing the need for chemical DAP.
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Improved Soil Structure: Produces Glomalin, a natural "super-glue" that binds soil particles, improving aeration, water infiltration, and preventing erosion.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Cortus (Gromor Suraksha) |
| Technical Name | Endo-Mycorrhizal Biofertilizer (Consortium) |
| IRAC MoA Code | Biological / Soil Health Promoter |
| Chemical Group | Glomeromycota Fungi + Neem Derivative |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Green (Organic / Non-Toxic) |
How It Works: Mode of Action
Cortus operates on a "Symbiotic Exchange" principle. It forms a mutually beneficial relationship with plant roots.
- Signal & Connection: Upon application, dormant spores sense root signals (exudates) and germinate. They penetrate the root cells to form an internal exchange network (Arbuscules).
- Extension (The Web): The fungus grows fine threads (Hyphae) outward, extending the root system by 100x. These threads enter microscopic soil pores to fetch water, Phosphorus, and Zinc.
- Neem Shielding: Simultaneously, the neem seed husk components create a localized zone that repels nematodes and slows down nitrogen leaching, keeping the root zone healthy and nutrient-rich.
Result: A plant with a massive, protected root system capable of thriving even in poor soil conditions.
Target Crops & Pests
| Crop | Target Issues Solved |
|---|---|
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Field Crops (Paddy, Cotton, Maize, Wheat) |
Phosphorus deficiency, stunted roots, drought stress. |
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Vegetables (Chilli, Tomato, Brinjal) |
Transplant shock, Root-knot Nematodes, poor flowering. |
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Plantations (Mango, Citrus, Pomegranate) |
Slow growth establishment, Zinc deficiency, water stress. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Cortus is best applied as a Basal Dose (at soil preparation).
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (Kg / Acre) | Application Method | Time | PHI (Days) |
|---|---|---|---|---|
| Field Crops (Cotton, Maize, etc.) | 4 Kg | Mix with 50-100kg FYM/Soil | Basal (At Sowing) | 0 |
| Horticulture & Plantations | 8 Kg | Ring Method / Root Zone | Pre-Monsoon | 0 |
| Vegetables | 4 Kg | Root Dip or Soil Mix | At Transplanting | 0 |
*PHI = Pre-Harvest Interval: Cortus is a biological product and has 0 days waiting period. It is safe for harvest immediately.
How to Apply: Best Practices
- Timing: Apply at the time of sowing or within 15-30 days of planting. Mycorrhiza works best when it connects to young roots early.
- Mixing: Mix the powder with Farm Yard Manure (FYM), Vermicompost, or field soil to ensure uniform spreading across the field.
- Coverage: Ensure the product reaches the root zone (Rhizosphere). For trees, apply in a ring around the trunk; for crops, apply in the furrows.
- Safety: Do NOT mix with chemical fungicides. If a fungicide drench is needed, keep a gap of 7-10 days before or after applying Cortus.
Frequently Asked Questions
1. Can I use Cortus with chemical fertilizers like Urea and DAP?
Yes, Cortus is compatible with chemical fertilizers. In fact, it helps the plant use applied DAP more efficiently.
2. Why is there Neem in this biofertilizer?
The Neem seed husk acts as a protector. It suppresses nematodes that eat roots and acts as a nitrification inhibitor to save Nitrogen in the soil.
3. Can I mix Cortus with fungicides?
No. Fungicides are designed to kill fungi, and they will kill the beneficial Mycorrhiza in Cortus. Maintain a 7-10 day gap.
4. Is it suitable for all crops?
It is excellent for almost all crops except Brassicas (Cabbage, Cauliflower, Mustard) which do not naturally form mycorrhizal associations.
5. Does it help in dry conditions?
Yes. The fungal hyphae penetrate deep micropores to access moisture that plant roots cannot reach, helping the crop survive drought stress.
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 inhalation of dust. Store in a cool, dry place away from direct sunlight.
