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Nutrient Management :: Rice |
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Seed treatment
Nutrient management
Main field Nutrient management Application of organic manures
Stubble incorporation
Biofertilizer application
Application of inorganic fertilizers
If the above recommendation are not able to be followed, adopt blanket recommendation as follows:
* For Ponni, N should be applied in three splits at AT, PI and H stages** in addition to GLM or FYM application. **Phenological stages of rice (days after sowing)
* N management through LCC
**Recommendation of P&K fertilizer rates based on SSNM approach for rice growing tracts of Tamil Nadu (other than Cauvery Delta)
** The above SSNM based fertilizer P and K arrived based on yield response are recommended for specific soil series prevailing in different rice growing areas for adoption by farmers Split application of N and K
Application of P fertilizer
Application of zinc sulphate
Application of gypsum Apply 500 kg of gypsum/ha (as source of Ca and S nutrients) at last ploughing. Foliar nutrition Foliar spray of 1% urea + 2% DAP + 1% KCl at Panicle Initiation (PI) and 10 days later for all varieties. Neem treated urea and coal-tar treated urea Blend the urea with crushed neem seed or neem cake 20% by weight. Powder neem cake to pass through 2mm sieve before mixing with urea. Keep it overnight before use (or) urea can be mixed with gypsum in 1:3 ratios, or urea can be mixed with gypsum and neem cake at 5:4:1 ratio to increase the nitrogen use efficiency. For treating 100 kg urea, take one kg coal-tar and 1.5 litres of kerosene. Melt coal-tar over a low flame and dissolve it in kerosene. Mix urea with the solution thoroughly in a plastic container, using a stick. Allow it to dry in shade on a polythene sheet. This can be stored for a month and applied basally. N management through LCC For sodic soil In the case of sodic soils, LCC critical value is 4.0 for varieties and 5.0 for the hybrids. Other special cultural practices (Contingent Plan) Application of Pink Pigmented Facultative Methylotroph (Methylobacterium sp.) as seed treatment (@ 200 g / 10 kg seeds), soil application (@ 2 kg / ha) and foliar spray (@ 500 ml / ha) at panicle initiation and flag leaf stages for alleviation of water stress effects in both SRI and transplanted system of rice cultivation. TRANSPLANTED HYBRID RICE
Other nutrient management practices: same as in transplanted rice variety SYSTEM OF RICE INTENSIFICATION Mat nursery preparation Preparation of soil mixture: Four (4) m3of soil mix is needed for each 100 m2of nursery. Mix70% soil + 20% well-decomposed pressmud / bio-gas slurry / FYM + 10% rice hull. Incorporate 1.5 kg of powdered DAP or 2 kg 17-17-17 NPK fertilizer in the soil mixture. Seed Treatment with biofertilizers:Five packets (1 kg/ha) of Azospirillum and five packets (1kg/ha) of Phosphobacteria or five packets (1 kg/ha) of Azophos. Biofertilizers are mixed with water used for soaking and kept for 4 hrs. The bacterial suspension after draining may be sprinkled in the nursery before sowing the treated seeds Pre-germinating the seeds 2 days before sowing: Soak the seeds for 24 hr, drain and incubate the soaked seeds for 24 hr, sow when the seeds sprout and radical (seed root) grows to 2-3 mm long. Soil application of biofertilizers :Application of Azospirillum @ 2 kg and Arbuscular mycorrhizal fungi @ 5 kg for 100 m2 nursery area
Spraying fertilizer solution(optional): If seedling growth is slow, sprinkle 0.5% urea + 0.5%zinc sulphate solution at 8-10 DAS.
Main field Nutrient management
WET SEEDED PUDDLED LOWLAND RICE Manures and fertilizer application
DRY SEEDED RAINFED UN-PUDDLED LOWLAND RICE Manures and fertilizer application
Manures and fertilizer application
DRY SEEDED IRRIGATED UN-PUDDLED LOWLAND RICE Manures and fertilizer application
RICE SEED PRODUCTION Blanket fertilizer recommendation
Zinc deficient soils Apply ZnSO4 @ 25 kg ha-1 Foliar application
Hybrid seed production Techniques (ADTRH 1 and CORH 2) Fertilizer application 150 : 60 : 60 kg NPK / ha. N and K applied in 3 split doses viz., basal, active tillering and panicle initiation. Foliar spray
Updated on : 2013 |
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