Directorate of Extension Education


Thematic area : Cultivation of ahu rice

Year of release : Under pipeline
Details of the technology
Variety : TTB500-1, TTB501-5
Characteristics : TTB500-1: Medium tall, short duration
TTB501-5: Medium tall, short duration
Duration : TTB500-1: 110 days
TTB501-5: 110 days
Grain character : TTB500-1: Medium slender
TTB501-5: Medium slender
Sowing time : Last week of February
Seed rate : 75 kg per ha
Space between lines : 15 cm
Seed treatment : Mancozeb @ 2.5 g/kg or Captan @ 2.5 g/kg
Land preparation : 3_4 ploughing followed by proper laddering
Manuring : 10 tons FYM/ ha is desirable
Fertilization : 40 : 20 : 20 kg (N : P2O5 : K2O) per ha
Harvesting time : May-June
Pest management : Annexure-II
Disease management : Annexure-III
Farming situations : Rainfed, upland
Agro-climatic zones : All six zones
Source of technology : Regional Agricultural Research Station
Assam Agricultural University
Titabar _ 781 360, Assam
Source of critical inputs : Annexure _ I
Benefit Cost Ratio : 1.23:1
Observations to be recorded :
i. Temperature
ii. Rainfall
iii. Date of sowing
iv. Date of germination
v. Date of weeding
vi. Days to 50% flowering
vii. Plant height
viii. Number tillers/m2
ix. Number of effective tillers/m2
x. Grain per panicles
xi. Pest infestation
xii. Disease infection
xiii. Grain yield
xiv. Farmers' reaction
Technology assessments (Matrices) : Annexure _ IV