Vigna mungo, the black gram, urad bean, ulundu paruppu, minapa pappu, mungo bean or black matpe bean (māṣa) is a bean grown in the South Asia. Like its relative, the mung bean, it has been reclassified from the Phaseolus to the Vigna genus. The product sold as black lentil is usually the whole urad bean, whereas the split bean (the interior being white) is called white lentil. It should not be confused with the much smaller true black lentil (Lens culinaris).
Seed rate depends on the variety the seed selected. Usually an average of 8 to 10 kg per acre is sufficient.
yield form 800 kg -1100 kg /acre