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SEED CO GROUP AGRONOMY 8️⃣5️⃣th ANNIVERSARY INSIGHTS (TIP 80 of 85)
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The Chola method is a cost-effective, farmer-designed "banding" technique used to apply top-dressing fertilizers like Ammonium Nitrate (AN) or Urea directly to crops. It improves efficiency by allowing for continuous application along a row.
⚙️Equipment Setup
The "applicator" is made from recycled farm materials:
1️⃣The Bag (Chola):
Use an empty, clean fertilizer bag or any sacks/bags available on farm. Make sure its cleaned of debris or previous contents
2️⃣The Pipe:
Pierce a small hole at one of the bottom corners and insert a hollow plastic pipe.
3️⃣Assembling the chola bag:
Secure the pipe so it releases the fertilizer at a steady rate when the bag is carried by a worker.
✅️Application Steps
1️⃣Preparation:
Calculate the required fertilizer amount per hectare and per row based on soil analysis.
2️⃣Timing:
Apply during the vegetative stage (e.g., at V3 to V6 stage in maize, or 4–6 weeks after emergence).
3️⃣Soil Condition:
Ensure the soil is moist (via rain or pre-irrigation) to help the fertilizer dissolve quickly and prevent loss.
4️⃣Banding:
The applicator walks along the row, allowing the fertilizer to flow through the pipe in a continuous "band".
Place the band approximately 5cm away from the plant base to prevent "fertilizer burn".
5️⃣Monitoring:
A second person should follow behind to ensure the pipe isn't clogged and the application rate remains consistent with the walking speed.
🥇Best Practices
1️⃣Speed Control:
Maintain a steady walking pace; the application rate is directly tied to how fast the worker moves.
2️⃣Avoid Foliage/Leaves:
Do not let the fertilizer touch the leaves, as Ammonium Nitrate is highly concentrated and can scorch the plant.
3️⃣Weather: Avoid applying on very windy days or when heavy rain is expected immediately, which could wash the fertilizer away before it dissolves.
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