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TNAU Agritech Portal :: System of Rice Intensification (SRI)

1. Components of System of Rice Intensification (SRI)
2. System of Rice Intensification (SRI) Cultivation
2.1. Season
  • Dry season with assured irrigation is more suitable.
  • Difficulty in crop establishment may be seen in areas with heavy downpour (NE Monsoon periods of Tamil Nadu)
2.2. Varieties
  • Hybrids and varieties with heavy tillering
3. Nursery
3.1. Seed Rate
3.2. Preparation of Nursery Area

Prepare 100 m2 nurseries to plant 1 ha.  Select a levelled area near the water source. Spread a plastic sheet or used polythene gunny bags on the shallow raised bed to prevent roots growing deep into soil.

3.3.Preparation of Soil Mixture
Four (4) m3 of soil mix is needed for each 100 m2 of nursery.  Mix 70% soil + 20% well-decomposed pressmud / bio-gas slurry / FYM + 10% rice hull. Incorporate in the soil mixture 1.5 kg of powdered di -ammonium phosphate or 2 kg 17-17-17 NPK fertilizer.

3.4. Blending Soil Mixture
3.5. Sowing Sprouted Seeds
Watering: Water the nursery with rose can as and when needed (twice or thrice a day) to keep the soil moist. Protect the nursery from heavy rains for the first 5 DAS. At 6 DAS, maintain thin film of water all around the seedling mats. Drain the water 2 days before removing the seedling mats for transplanting.
Spraying fertilizer solution (optional): If seedling growth is slow, sprinkle 0.5% urea + 0.5% zinc sulfate solution at 8-10 DAS.
Lifting seedling mats: Seedlings reach sufficient height for planting at 15 days.  Lift the seedling mats and transport them to main field.


4. Main Field Preparation
5. Transplanting
6. Irrigation Management
7. Weed Management
8. Nutrient Managements
Nutrient Management through Leaf Color Chart (LCC)

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