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Main Field :: Nutrient Management :: Cotton

 

STCR IPNS recommendations for rainfed cotton
  • Soil test crop response based integrated plant nutrition system (STCR – IPNS) recommendation may be adopted for prescribing fertilizer doses for specified yield targets [ready reckoners are furnished]
Black soil (Pilamedu series) – Rainfed Cotton – Bt Hybrid

  • FN = 5.35 T – 0.24 SN – 0.53 ON

  • FP2O5 = 3.67 T – 1.99 SP – 0.84 OP

  • FK2O = 3.83 T – 0.13 SK – 0.55 OK

Initial soil test values (kg ha-1)

 NPK (kg ha-1) + GM @ 6.25 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1

NPK (kg ha-1) + FYM @ 12.5 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1

SN

 SP SK FN FP2O5 FK2O FN FP2O5

FK2O

175

 14 200 83 45** 45** 90** 45** 45**

225

 18 300 71 45** 42 90** 45**

45**
275 22 400 59 39 29 80 45**

45**

**Maximum dose

Note:

  • PSB - Phosphorus Solubilizing Bacteria

  • FN, FP2O5 and K2O - Fertilizer N, P2O5 and K2O in kg ha-1, respectively

  • T -Yield target in q ha-1

  • SN, SP and SK - Soil available N, P and K in kg ha-1, respectively

  • ON, OP and OK - Quantities of N, P and K supplied through organic manure in kg ha-1, respectively


 

 

Updated on Jan 2023
 

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