The best fertilizer application for turmeric involves a split application of nitrogen and potash, specifically tailored to the plant's growth stages.
Here's a breakdown of the recommended fertilizer schedule:
- 80 Days After Planting: Apply 24 kg of nitrogen and 16 kg of potash per acre.
- 120 Days After Planting: Apply 20 kg of nitrogen and 14 kg of potash per acre, followed by earthing up the crop (mounding soil around the base of the plants).
Key Considerations:
- Timing is Crucial: Ensure that all fertilizer applications are completed within 120 days from the initial planting date. This allows the turmeric plants to utilize the nutrients effectively during their active growth phase.
- Split Application: Applying the fertilizer in split doses, rather than a single large application, helps to minimize nutrient loss through leaching and ensures a continuous supply of nutrients to the plants.
- Earthing Up: The final application of fertilizer should be followed by earthing up. This practice not only supports the plants but also helps to protect the developing rhizomes (the part of the turmeric plant that is harvested).
- Balance is Important: Using both nitrogen and potash is vital. Nitrogen promotes leafy growth, while potash supports rhizome development.
Alternative Fertilizer Options (General Guidance - Consult Local Agricultural Experts):
While the above schedule is specific, general principles for turmeric fertilization include:
- Organic Fertilizers: Well-rotted farmyard manure (FYM) or compost can be incorporated into the soil before planting as a base fertilizer. This improves soil structure and provides a slow-release source of nutrients.
- NPK Ratios: Depending on soil test results, you might consider using an NPK (Nitrogen, Phosphorus, Potassium) fertilizer blend. Consult with local agricultural extension officers or soil testing labs to determine the appropriate NPK ratio for your specific soil conditions.
- Secondary Nutrients & Micronutrients: Ensure adequate supply of micronutrients such as Zinc, Iron, Boron and Magnesium either through foliar sprays of micronutrient mixtures for better yield and quality.
Important Note: The specific fertilizer requirements for turmeric can vary depending on soil type, climate, and variety. It is always recommended to conduct soil testing and consult with local agricultural experts to determine the most appropriate fertilizer regime for your specific growing conditions.
