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Rice :: SRI Cultivation :: Nutrient Management
Nutrient management
  • As per transplanted rice.
  • Use of LCC has more advantage in N management.
  • Green manure and farm yard manure application will enhance the growth and yield of rice in this system approach.
  • Under sodic soils, during rotary weeding, apply Azophosmet @ 2.2 kg/ha and PPFM as foliar spray @ 500 ml/ha.
N management through LCC
  • Time of application is decided by LCC score
  • Take observations from 14 DAT in transplanted rice or 21 DAS in direct seeded rice.
  • Repeat the observations  at weekly intervals up to heading
  • Observe the leaf colour in the fully opened third leaf from the top as index leaf.
  • Match the leaf color with the colours in the chart during morning hours (8-10 am).
  • Take observation in 10 places.
  • LCC critical value is 3.0 in low N response cultures like White Ponni and 4.0 in other cultivars and hybrids
  • When 6/10 observations show less than the critical colour value, N can be applied @ 35kg N/ha in dry season and 30kg N/ha in wet season per application per ha.
  • Green manure and farm yard manure application will enhance the growth and yield of rice in this system approach.

Leaf Color Chart based N Management