Blackgram

Nutrient Management

  • The crop requires 15-20 kg nitrogen and about 50 to 60 kg P2O5 per hectare which should be basal placed but when it is to be grown as mixed crop with other crops, the fertilizer meeting the requirement of the main crop should be applied.
  • Application of 70-80 kg diammonium phosphate (DAD)/ha is more convenient as it meets adequately the total requirement of N and P2O5.
  • Molybdenum also helps in increasing crop production.
  • However, response to P2O5 application is higher in red soils followed by that on lateritic soils.
  • Potassic fertilizers should be applied as per soil test value.
  • In case, soil test facilities are not available, one can apply 30-40 kg K2O/ha.
  • The fertilizers should be drilled at the time of sowing in such a way that they are placed about 5-7 cm below the seed.
  • When the crop is raised as intercrop, the fertilizer requirement for the main crop is to be applied.
  • Application of S @ 20 kg/ha improved the grain yield by 226 kg/ha compared to control. The nutrient use efficiency was 11.3 kg grain/kg S and gypsum is the most efficient source, followed by single super phosphate.


 

Telangana