25 % recommended Nitrogen (20 kg/ha) is applied as chemical fertilizer, to meet the remaining 75%, Sow green manure cowpea in the interspaces @ 20 kg ha-1 immediately after planting tannia and incorporate at 45-60 days.
Application of N bio-fertilizer @ 10 g per plant within one month of planting.
Application of neem cake in pits after one month of the bio-fertilizer application has to be done.