Directorate of Extension Education




12. Potash management in lentil

Thematic area : Nutrient management in lentil.
Year of release : Under pipe line
Details of the technology :
Crop : Lentil (Lens culinaris)
Variety : PL 406.
Nutrients : Nitrogen: Phosphorus : Potash:: 15: 35 :15 kg/ha.
Method of PSB application : Seed treatment.
Sowing time : Mid October to mid November.
Duration : 120 days.
Land preparation : 3 to 4 ploughings followed by levelling.
Spacing : 25 cm between rows.
Farming situations : Medium and High land
Agro-climatic zones : Central Brahmaputra Valley Zone,
Lower Brahmaputra Valley Zone,
North Bank Plain Zone.
Benefit Cost Ratio : 1.62:1
Source of technology : Regional Agricultural Research Station
Assam Agricultural University
Shillongini, Nagaon _ 782002, Assam
Source of critical inputs : Annexure _ I
Observations to be recorded :
i) Temperature
ii) Rainfall
iii) Date of application of fertilizers
iv) Date of sowing
v) Date of germination
vi) Date of weeding
vii) Days to 50% flowering
viii) Plant height
ix) Pest infestation
x) Disease infestation
xi) Yield
xii) Nutrient content (NPK) of soil before and after crop.
xiii) Farmers' reaction

Technology assessment (Matrices) : Annexure _ IV